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This is a playground and demo space for ConfiForms and ConfiDoc addons developed and supported by Vertuna LLC

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To import examples from the storage format on Confluence Cloud please see this page

Please note, all the examples here are provided without any obligation and may or may not be incomplete or may have bugs, and we provide NO SUPPORT for these examples and demos.

In this tutorial we show how to fill in the dropdown field with values for priorities (priority field in JIRA project)

The underlying request is as follows

https://vertuna-test.atlassian.net/rest/api/latest/issue/createmeta?expand=projects.issuetypes.fields&projectKeys=JTEST

With response given with the following structure:

{
  expand: "projects",
  projects: [
    {
      expand: "issuetypes",
      self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
      id: "10000",
      key: "JTEST",
      name: "JTEST",
      avatarUrls: {
        48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
        24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
        16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
        32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
      },
      issuetypes: [
        {
          self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10101",
          id: "10101",
          description: "A task that needs to be done.",
          iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10318&avatarType=issuetype",
          name: "Task",
          subtask: false,
          expand: "fields",
          fields: {
            summary: {
              required: true,
              schema: {
                type: "string",
                system: "summary"
              },
              name: "Summary",
              key: "summary",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuetype: {
              required: true,
              schema: {
                type: "issuetype",
                system: "issuetype"
              },
              name: "Issue Type",
              key: "issuetype",
              hasDefaultValue: false,
              operations: [
                
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10101",
                  id: "10101",
                  description: "A task that needs to be done.",
                  iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10318&avatarType=issuetype",
                  name: "Task",
                  subtask: false,
                  avatarId: 10318
                }
              ]
            },
            components: {
              required: false,
              schema: {
                type: "array",
                items: "component",
                system: "components"
              },
              name: "Component/s",
              key: "components",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                
              ]
            },
            description: {
              required: false,
              schema: {
                type: "string",
                system: "description"
              },
              name: "Description",
              key: "description",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            project: {
              required: true,
              schema: {
                type: "project",
                system: "project"
              },
              name: "Project",
              key: "project",
              hasDefaultValue: false,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
                  id: "10000",
                  key: "JTEST",
                  name: "JTEST",
                  projectTypeKey: "software",
                  avatarUrls: {
                    48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
                    24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
                    16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
                    32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
                  }
                }
              ]
            },
            reporter: {
              required: true,
              schema: {
                type: "user",
                system: "reporter"
              },
              name: "Reporter",
              key: "reporter",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/search?username=",
              hasDefaultValue: true,
              operations: [
                "set"
              ]
            },
            fixVersions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "fixVersions"
              },
              name: "Fix Version/s",
              key: "fixVersions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            priority: {
              required: false,
              schema: {
                type: "priority",
                system: "priority"
              },
              name: "Priority",
              key: "priority",
              hasDefaultValue: true,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/1",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/highest.svg",
                  name: "Highest",
                  id: "1"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/2",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/high.svg",
                  name: "High",
                  id: "2"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                  name: "Medium",
                  id: "3"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/4",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/low.svg",
                  name: "Low",
                  id: "4"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/5",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/lowest.svg",
                  name: "Lowest",
                  id: "5"
                }
              ],
              defaultValue: {
                self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                name: "Medium",
                id: "3"
              }
            },
            labels: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                system: "labels"
              },
              name: "Labels",
              key: "labels",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/1.0/labels/suggest?query=",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ]
            },
            customfield_10005: {
              required: false,
              schema: {
                type: "any",
                custom: "com.pyxis.greenhopper.jira:gh-epic-link",
                customId: 10005
              },
              name: "Epic Link",
              key: "customfield_10005",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            customfield_10216: {
              required: false,
              schema: {
                type: "array",
                items: "option",
                custom: "com.atlassian.jira.plugin.system.customfieldtypes:multiselect",
                customId: 10216
              },
              name: "multipultifield",
              key: "customfield_10216",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10102",
                  value: "uno",
                  id: "10102"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10103",
                  value: "duo",
                  id: "10103"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10104",
                  value: "tres",
                  id: "10104"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10105",
                  value: "quattro",
                  id: "10105"
                }
              ]
            },
            attachment: {
              required: false,
              schema: {
                type: "array",
                items: "attachment",
                system: "attachment"
              },
              name: "Attachment",
              key: "attachment",
              hasDefaultValue: false,
              operations: [
                
              ]
            },
            customfield_10119: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                custom: "com.pyxis.greenhopper.jira:gh-sprint",
                customId: 10119
              },
              name: "Sprint",
              key: "customfield_10119",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuelinks: {
              required: false,
              schema: {
                type: "array",
                items: "issuelinks",
                system: "issuelinks"
              },
              name: "Linked Issues",
              key: "issuelinks",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/2/issue/picker?currentProjectId=&showSubTaskParent=true&showSubTasks=true&currentIssueKey=null&query=",
              hasDefaultValue: false,
              operations: [
                "add"
              ]
            },
            assignee: {
              required: false,
              schema: {
                type: "user",
                system: "assignee"
              },
              name: "Assignee",
              key: "assignee",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/assignable/search?project=JTEST&username=",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            }
          }
        },
        {
          self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10102",
          id: "10102",
          description: "The sub-task of the issue",
          iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10316&avatarType=issuetype",
          name: "Sub-task",
          subtask: true,
          expand: "fields",
          fields: {
            summary: {
              required: true,
              schema: {
                type: "string",
                system: "summary"
              },
              name: "Summary",
              key: "summary",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuetype: {
              required: true,
              schema: {
                type: "issuetype",
                system: "issuetype"
              },
              name: "Issue Type",
              key: "issuetype",
              hasDefaultValue: false,
              operations: [
                
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10102",
                  id: "10102",
                  description: "The sub-task of the issue",
                  iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10316&avatarType=issuetype",
                  name: "Sub-task",
                  subtask: true,
                  avatarId: 10316
                }
              ]
            },
            parent: {
              required: true,
              schema: {
                type: "issuelink",
                system: "parent"
              },
              name: "Parent",
              key: "parent",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            components: {
              required: false,
              schema: {
                type: "array",
                items: "component",
                system: "components"
              },
              name: "Component/s",
              key: "components",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                
              ]
            },
            description: {
              required: false,
              schema: {
                type: "string",
                system: "description"
              },
              name: "Description",
              key: "description",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            project: {
              required: true,
              schema: {
                type: "project",
                system: "project"
              },
              name: "Project",
              key: "project",
              hasDefaultValue: false,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
                  id: "10000",
                  key: "JTEST",
                  name: "JTEST",
                  projectTypeKey: "software",
                  avatarUrls: {
                    48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
                    24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
                    16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
                    32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
                  }
                }
              ]
            },
            reporter: {
              required: true,
              schema: {
                type: "user",
                system: "reporter"
              },
              name: "Reporter",
              key: "reporter",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/search?username=",
              hasDefaultValue: true,
              operations: [
                "set"
              ]
            },
            fixVersions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "fixVersions"
              },
              name: "Fix Version/s",
              key: "fixVersions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            priority: {
              required: false,
              schema: {
                type: "priority",
                system: "priority"
              },
              name: "Priority",
              key: "priority",
              hasDefaultValue: true,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/1",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/highest.svg",
                  name: "Highest",
                  id: "1"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/2",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/high.svg",
                  name: "High",
                  id: "2"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                  name: "Medium",
                  id: "3"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/4",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/low.svg",
                  name: "Low",
                  id: "4"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/5",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/lowest.svg",
                  name: "Lowest",
                  id: "5"
                }
              ],
              defaultValue: {
                self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                name: "Medium",
                id: "3"
              }
            },
            labels: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                system: "labels"
              },
              name: "Labels",
              key: "labels",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/1.0/labels/suggest?query=",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ]
            },
            customfield_10005: {
              required: false,
              schema: {
                type: "any",
                custom: "com.pyxis.greenhopper.jira:gh-epic-link",
                customId: 10005
              },
              name: "Epic Link",
              key: "customfield_10005",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            customfield_10216: {
              required: false,
              schema: {
                type: "array",
                items: "option",
                custom: "com.atlassian.jira.plugin.system.customfieldtypes:multiselect",
                customId: 10216
              },
              name: "multipultifield",
              key: "customfield_10216",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10102",
                  value: "uno",
                  id: "10102"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10103",
                  value: "duo",
                  id: "10103"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10104",
                  value: "tres",
                  id: "10104"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10105",
                  value: "quattro",
                  id: "10105"
                }
              ]
            },
            attachment: {
              required: false,
              schema: {
                type: "array",
                items: "attachment",
                system: "attachment"
              },
              name: "Attachment",
              key: "attachment",
              hasDefaultValue: false,
              operations: [
                
              ]
            },
            customfield_10119: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                custom: "com.pyxis.greenhopper.jira:gh-sprint",
                customId: 10119
              },
              name: "Sprint",
              key: "customfield_10119",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuelinks: {
              required: false,
              schema: {
                type: "array",
                items: "issuelinks",
                system: "issuelinks"
              },
              name: "Linked Issues",
              key: "issuelinks",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/2/issue/picker?currentProjectId=&showSubTaskParent=true&showSubTasks=true&currentIssueKey=null&query=",
              hasDefaultValue: false,
              operations: [
                "add"
              ]
            },
            assignee: {
              required: false,
              schema: {
                type: "user",
                system: "assignee"
              },
              name: "Assignee",
              key: "assignee",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/assignable/search?project=JTEST&username=",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            }
          }
        },
        {
          self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10100",
          id: "10100",
          description: "A user story. Created by JIRA Software - do not edit or delete.",
          iconUrl: "https://vertuna-test.atlassian.net/images/icons/issuetypes/story.svg",
          name: "Story",
          subtask: false,
          expand: "fields",
          fields: {
            summary: {
              required: true,
              schema: {
                type: "string",
                system: "summary"
              },
              name: "Summary",
              key: "summary",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuetype: {
              required: true,
              schema: {
                type: "issuetype",
                system: "issuetype"
              },
              name: "Issue Type",
              key: "issuetype",
              hasDefaultValue: false,
              operations: [
                
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10100",
                  id: "10100",
                  description: "A user story. Created by JIRA Software - do not edit or delete.",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/issuetypes/story.svg",
                  name: "Story",
                  subtask: false
                }
              ]
            },
            components: {
              required: false,
              schema: {
                type: "array",
                items: "component",
                system: "components"
              },
              name: "Component/s",
              key: "components",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                
              ]
            },
            description: {
              required: false,
              schema: {
                type: "string",
                system: "description"
              },
              name: "Description",
              key: "description",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            project: {
              required: true,
              schema: {
                type: "project",
                system: "project"
              },
              name: "Project",
              key: "project",
              hasDefaultValue: false,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
                  id: "10000",
                  key: "JTEST",
                  name: "JTEST",
                  projectTypeKey: "software",
                  avatarUrls: {
                    48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
                    24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
                    16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
                    32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
                  }
                }
              ]
            },
            reporter: {
              required: true,
              schema: {
                type: "user",
                system: "reporter"
              },
              name: "Reporter",
              key: "reporter",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/search?username=",
              hasDefaultValue: true,
              operations: [
                "set"
              ]
            },
            fixVersions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "fixVersions"
              },
              name: "Fix Version/s",
              key: "fixVersions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            priority: {
              required: false,
              schema: {
                type: "priority",
                system: "priority"
              },
              name: "Priority",
              key: "priority",
              hasDefaultValue: true,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/1",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/highest.svg",
                  name: "Highest",
                  id: "1"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/2",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/high.svg",
                  name: "High",
                  id: "2"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                  name: "Medium",
                  id: "3"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/4",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/low.svg",
                  name: "Low",
                  id: "4"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/5",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/lowest.svg",
                  name: "Lowest",
                  id: "5"
                }
              ],
              defaultValue: {
                self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                name: "Medium",
                id: "3"
              }
            },
            labels: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                system: "labels"
              },
              name: "Labels",
              key: "labels",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/1.0/labels/suggest?query=",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ]
            },
            customfield_10005: {
              required: false,
              schema: {
                type: "any",
                custom: "com.pyxis.greenhopper.jira:gh-epic-link",
                customId: 10005
              },
              name: "Epic Link",
              key: "customfield_10005",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            customfield_10216: {
              required: false,
              schema: {
                type: "array",
                items: "option",
                custom: "com.atlassian.jira.plugin.system.customfieldtypes:multiselect",
                customId: 10216
              },
              name: "multipultifield",
              key: "customfield_10216",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10102",
                  value: "uno",
                  id: "10102"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10103",
                  value: "duo",
                  id: "10103"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10104",
                  value: "tres",
                  id: "10104"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10105",
                  value: "quattro",
                  id: "10105"
                }
              ]
            },
            attachment: {
              required: false,
              schema: {
                type: "array",
                items: "attachment",
                system: "attachment"
              },
              name: "Attachment",
              key: "attachment",
              hasDefaultValue: false,
              operations: [
                
              ]
            },
            customfield_10119: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                custom: "com.pyxis.greenhopper.jira:gh-sprint",
                customId: 10119
              },
              name: "Sprint",
              key: "customfield_10119",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuelinks: {
              required: false,
              schema: {
                type: "array",
                items: "issuelinks",
                system: "issuelinks"
              },
              name: "Linked Issues",
              key: "issuelinks",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/2/issue/picker?currentProjectId=&showSubTaskParent=true&showSubTasks=true&currentIssueKey=null&query=",
              hasDefaultValue: false,
              operations: [
                "add"
              ]
            },
            assignee: {
              required: false,
              schema: {
                type: "user",
                system: "assignee"
              },
              name: "Assignee",
              key: "assignee",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/assignable/search?project=JTEST&username=",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            }
          }
        },
        {
          self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10103",
          id: "10103",
          description: "A problem which impairs or prevents the functions of the product.",
          iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10303&avatarType=issuetype",
          name: "Bug",
          subtask: false,
          expand: "fields",
          fields: {
            summary: {
              required: true,
              schema: {
                type: "string",
                system: "summary"
              },
              name: "Summary",
              key: "summary",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuetype: {
              required: true,
              schema: {
                type: "issuetype",
                system: "issuetype"
              },
              name: "Issue Type",
              key: "issuetype",
              hasDefaultValue: false,
              operations: [
                
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10103",
                  id: "10103",
                  description: "A problem which impairs or prevents the functions of the product.",
                  iconUrl: "https://vertuna-test.atlassian.net/secure/viewavatar?size=xsmall&avatarId=10303&avatarType=issuetype",
                  name: "Bug",
                  subtask: false,
                  avatarId: 10303
                }
              ]
            },
            components: {
              required: false,
              schema: {
                type: "array",
                items: "component",
                system: "components"
              },
              name: "Component/s",
              key: "components",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                
              ]
            },
            description: {
              required: false,
              schema: {
                type: "string",
                system: "description"
              },
              name: "Description",
              key: "description",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            project: {
              required: true,
              schema: {
                type: "project",
                system: "project"
              },
              name: "Project",
              key: "project",
              hasDefaultValue: false,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
                  id: "10000",
                  key: "JTEST",
                  name: "JTEST",
                  projectTypeKey: "software",
                  avatarUrls: {
                    48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
                    24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
                    16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
                    32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
                  }
                }
              ]
            },
            reporter: {
              required: true,
              schema: {
                type: "user",
                system: "reporter"
              },
              name: "Reporter",
              key: "reporter",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/search?username=",
              hasDefaultValue: true,
              operations: [
                "set"
              ]
            },
            fixVersions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "fixVersions"
              },
              name: "Fix Version/s",
              key: "fixVersions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            priority: {
              required: false,
              schema: {
                type: "priority",
                system: "priority"
              },
              name: "Priority",
              key: "priority",
              hasDefaultValue: true,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/1",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/highest.svg",
                  name: "Highest",
                  id: "1"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/2",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/high.svg",
                  name: "High",
                  id: "2"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                  name: "Medium",
                  id: "3"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/4",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/low.svg",
                  name: "Low",
                  id: "4"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/5",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/lowest.svg",
                  name: "Lowest",
                  id: "5"
                }
              ],
              defaultValue: {
                self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                name: "Medium",
                id: "3"
              }
            },
            labels: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                system: "labels"
              },
              name: "Labels",
              key: "labels",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/1.0/labels/suggest?query=",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ]
            },
            customfield_10005: {
              required: false,
              schema: {
                type: "any",
                custom: "com.pyxis.greenhopper.jira:gh-epic-link",
                customId: 10005
              },
              name: "Epic Link",
              key: "customfield_10005",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            environment: {
              required: false,
              schema: {
                type: "string",
                system: "environment"
              },
              name: "Environment",
              key: "environment",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            customfield_10216: {
              required: false,
              schema: {
                type: "array",
                items: "option",
                custom: "com.atlassian.jira.plugin.system.customfieldtypes:multiselect",
                customId: 10216
              },
              name: "multipultifield",
              key: "customfield_10216",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10102",
                  value: "uno",
                  id: "10102"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10103",
                  value: "duo",
                  id: "10103"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10104",
                  value: "tres",
                  id: "10104"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10105",
                  value: "quattro",
                  id: "10105"
                }
              ]
            },
            attachment: {
              required: false,
              schema: {
                type: "array",
                items: "attachment",
                system: "attachment"
              },
              name: "Attachment",
              key: "attachment",
              hasDefaultValue: false,
              operations: [
                
              ]
            },
            customfield_10119: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                custom: "com.pyxis.greenhopper.jira:gh-sprint",
                customId: 10119
              },
              name: "Sprint",
              key: "customfield_10119",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            versions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "versions"
              },
              name: "Affects Version/s",
              key: "versions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            issuelinks: {
              required: false,
              schema: {
                type: "array",
                items: "issuelinks",
                system: "issuelinks"
              },
              name: "Linked Issues",
              key: "issuelinks",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/2/issue/picker?currentProjectId=&showSubTaskParent=true&showSubTasks=true&currentIssueKey=null&query=",
              hasDefaultValue: false,
              operations: [
                "add"
              ]
            },
            assignee: {
              required: false,
              schema: {
                type: "user",
                system: "assignee"
              },
              name: "Assignee",
              key: "assignee",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/assignable/search?project=JTEST&username=",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            }
          }
        },
        {
          self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10000",
          id: "10000",
          description: "A big user story that needs to be broken down. Created by JIRA Software - do not edit or delete.",
          iconUrl: "https://vertuna-test.atlassian.net/images/icons/issuetypes/epic.svg",
          name: "Epic",
          subtask: false,
          expand: "fields",
          fields: {
            summary: {
              required: true,
              schema: {
                type: "string",
                system: "summary"
              },
              name: "Summary",
              key: "summary",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuetype: {
              required: true,
              schema: {
                type: "issuetype",
                system: "issuetype"
              },
              name: "Issue Type",
              key: "issuetype",
              hasDefaultValue: false,
              operations: [
                
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/issuetype/10000",
                  id: "10000",
                  description: "A big user story that needs to be broken down. Created by JIRA Software - do not edit or delete.",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/issuetypes/epic.svg",
                  name: "Epic",
                  subtask: false
                }
              ]
            },
            components: {
              required: false,
              schema: {
                type: "array",
                items: "component",
                system: "components"
              },
              name: "Component/s",
              key: "components",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                
              ]
            },
            description: {
              required: false,
              schema: {
                type: "string",
                system: "description"
              },
              name: "Description",
              key: "description",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            project: {
              required: true,
              schema: {
                type: "project",
                system: "project"
              },
              name: "Project",
              key: "project",
              hasDefaultValue: false,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/project/10000",
                  id: "10000",
                  key: "JTEST",
                  name: "JTEST",
                  projectTypeKey: "software",
                  avatarUrls: {
                    48x48: "https://vertuna-test.atlassian.net/secure/projectavatar?pid=10000&avatarId=10546",
                    24x24: "https://vertuna-test.atlassian.net/secure/projectavatar?size=small&pid=10000&avatarId=10546",
                    16x16: "https://vertuna-test.atlassian.net/secure/projectavatar?size=xsmall&pid=10000&avatarId=10546",
                    32x32: "https://vertuna-test.atlassian.net/secure/projectavatar?size=medium&pid=10000&avatarId=10546"
                  }
                }
              ]
            },
            reporter: {
              required: true,
              schema: {
                type: "user",
                system: "reporter"
              },
              name: "Reporter",
              key: "reporter",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/search?username=",
              hasDefaultValue: true,
              operations: [
                "set"
              ]
            },
            fixVersions: {
              required: false,
              schema: {
                type: "array",
                items: "version",
                system: "fixVersions"
              },
              name: "Fix Version/s",
              key: "fixVersions",
              hasDefaultValue: false,
              operations: [
                "set",
                "add",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10000",
                  id: "10000",
                  name: "Version 1.0",
                  archived: false,
                  released: true,
                  releaseDate: "2017-02-20",
                  userReleaseDate: "20/Feb/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10001",
                  id: "10001",
                  name: "Version 2.0",
                  archived: false,
                  released: false,
                  releaseDate: "2017-03-06",
                  overdue: true,
                  userReleaseDate: "06/Mar/17",
                  projectId: 10000
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/version/10002",
                  id: "10002",
                  name: "Version 3.0",
                  archived: false,
                  released: false,
                  projectId: 10000
                }
              ]
            },
            priority: {
              required: false,
              schema: {
                type: "priority",
                system: "priority"
              },
              name: "Priority",
              key: "priority",
              hasDefaultValue: true,
              operations: [
                "set"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/1",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/highest.svg",
                  name: "Highest",
                  id: "1"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/2",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/high.svg",
                  name: "High",
                  id: "2"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                  name: "Medium",
                  id: "3"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/4",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/low.svg",
                  name: "Low",
                  id: "4"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/priority/5",
                  iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/lowest.svg",
                  name: "Lowest",
                  id: "5"
                }
              ],
              defaultValue: {
                self: "https://vertuna-test.atlassian.net/rest/api/2/priority/3",
                iconUrl: "https://vertuna-test.atlassian.net/images/icons/priorities/medium.svg",
                name: "Medium",
                id: "3"
              }
            },
            customfield_10002: {
              required: true,
              schema: {
                type: "string",
                custom: "com.pyxis.greenhopper.jira:gh-epic-label",
                customId: 10002
              },
              name: "Epic Name",
              key: "customfield_10002",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            labels: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                system: "labels"
              },
              name: "Labels",
              key: "labels",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/1.0/labels/suggest?query=",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ]
            },
            customfield_10005: {
              required: false,
              schema: {
                type: "any",
                custom: "com.pyxis.greenhopper.jira:gh-epic-link",
                customId: 10005
              },
              name: "Epic Link",
              key: "customfield_10005",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            customfield_10216: {
              required: false,
              schema: {
                type: "array",
                items: "option",
                custom: "com.atlassian.jira.plugin.system.customfieldtypes:multiselect",
                customId: 10216
              },
              name: "multipultifield",
              key: "customfield_10216",
              hasDefaultValue: false,
              operations: [
                "add",
                "set",
                "remove"
              ],
              allowedValues: [
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10102",
                  value: "uno",
                  id: "10102"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10103",
                  value: "duo",
                  id: "10103"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10104",
                  value: "tres",
                  id: "10104"
                },
                {
                  self: "https://vertuna-test.atlassian.net/rest/api/2/customFieldOption/10105",
                  value: "quattro",
                  id: "10105"
                }
              ]
            },
            attachment: {
              required: false,
              schema: {
                type: "array",
                items: "attachment",
                system: "attachment"
              },
              name: "Attachment",
              key: "attachment",
              hasDefaultValue: false,
              operations: [
                
              ]
            },
            customfield_10119: {
              required: false,
              schema: {
                type: "array",
                items: "string",
                custom: "com.pyxis.greenhopper.jira:gh-sprint",
                customId: 10119
              },
              name: "Sprint",
              key: "customfield_10119",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            },
            issuelinks: {
              required: false,
              schema: {
                type: "array",
                items: "issuelinks",
                system: "issuelinks"
              },
              name: "Linked Issues",
              key: "issuelinks",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/2/issue/picker?currentProjectId=&showSubTaskParent=true&showSubTasks=true&currentIssueKey=null&query=",
              hasDefaultValue: false,
              operations: [
                "add"
              ]
            },
            assignee: {
              required: false,
              schema: {
                type: "user",
                system: "assignee"
              },
              name: "Assignee",
              key: "assignee",
              autoCompleteUrl: "https://vertuna-test.atlassian.net/rest/api/latest/user/assignable/search?project=JTEST&username=",
              hasDefaultValue: false,
              operations: [
                "set"
              ]
            }
          }
        }
      ]
    }
  ]
}


If you are looking to build a similar thing using Jira 9 then have a look at this page as well - Navigating through JSON properties


We show priorities for issue type "Task" (first one in the response)

It is important to undertand the structre of the response in order to understand how the dropdown field is built / mapped

Source code for the form

<ac:structured-macro ac:macro-id="45065969-9928-4af4-8926-cd18076a7db9" ac:name="confiform" ac:schema-version="1">
  <ac:parameter ac:name="formName">f1</ac:parameter>
  <ac:rich-text-body>
    <ac:structured-macro ac:macro-id="972e30b8-5709-454c-a3d6-e93bc5f6e7eb" ac:name="confiform-entry-register" ac:schema-version="1">
      <ac:parameter ac:name="embedded">true</ac:parameter>
      <ac:parameter ac:name="atlassian-macro-output-type">INLINE</ac:parameter>
      <ac:rich-text-body>
        <p>
          <br/>
        </p>
      </ac:rich-text-body>
    </ac:structured-macro>
    <p>
      <ac:structured-macro ac:macro-id="80dec9d6-432b-4f0f-b2bb-22cec7b7f209" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="mapping">projects[0].issuetypes[0].fields.priority.allowedValues|id|name</ac:parameter>
        <ac:parameter ac:name="fieldName">choices</ac:parameter>
        <ac:parameter ac:name="fieldLabel">choices from jira field</ac:parameter>
        <ac:parameter ac:name="values">/rest/api/latest/issue/createmeta?expand=projects.issuetypes.fields&amp;projectKeys=JTEST</ac:parameter>
        <ac:parameter ac:name="extras">4bb4c41a51f289a07507d50a1b841a4d</ac:parameter>
        <ac:parameter ac:name="type">wsselect</ac:parameter>
      </ac:structured-macro>
    </p>
<p>
      <ac:structured-macro ac:macro-id="7c654cc6-804f-41c2-a33c-981af412b647" ac:name="confiform-field-definition" ac:schema-version="1">
        <ac:parameter ac:name="mapping">projects[0].issuetypes[0].fields.customfield_10216.allowedValues|id|value</ac:parameter>
        <ac:parameter ac:name="fieldName">somecustomfield</ac:parameter>
        <ac:parameter ac:name="fieldLabel">custom field</ac:parameter>
        <ac:parameter ac:name="values">/rest/api/latest/issue/createmeta?expand=projects.issuetypes.fields&amp;projectKeys=JTEST</ac:parameter>
        <ac:parameter ac:name="extras">4bb4c41a51f289a07507d50a1b841a4d</ac:parameter>
        <ac:parameter ac:name="type">wsselect</ac:parameter>
      </ac:structured-macro>
    </p>
  </ac:rich-text-body>
</ac:structured-macro>

So, we take the response, and go through projects, selecting 2nd element from the array, then take issuetypes field and get the 1st element, then going down the tree to "fields", then finding "priority" field and it's "allowedValues"

projects[1].issuetypes[0].fields.priority.allowedValues

If you are using latest createmeta APIs from Jira 9 

https://docs.atlassian.com/software/jira/docs/api/REST/9.12.7/#api/2/issue-getCreateIssueMetaProjectIssueTypes

GET /rest/api/2/issue/createmeta/{projectIdOrKey}/issuetypes/{issueTypeId}

The root to use parameter value will be a bit different. An expression would look like this (to get values for the priority field)

values.(fieldId=priority).allowedValues

On Jira cloud

https://developer.atlassian.com/cloud/jira/platform/rest/v2/api-group-issues/#api-rest-api-2-issue-createmeta-projectidorkey-issuetypes-issuetypeid-get

GET /rest/api/2/issue/createmeta/{projectIdOrKey}/issuetypes/{issueTypeId}

 Similar method call, but a bit different result and the values are under the "fields" node (not "values" node)

fields.(fieldId=priority).allowedValues



Mappings for the ID and LABEL (parameters) will be the same: id and name


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