How to set select lists (single, multiple, cascading), radio or checkboxes on create issue with REST

[#1]

This small how-to is all about setting custom fields on creating an issue. Apart from the customfield_xxxxx elements, only the minimum required fields are set.

The REST API endpoint

POST https://myjiradomain.com/rest/api/2/issue

HTTP Headers to be set

• Content-Type: application/json
• User-Agent: x (required only, if you get an XSRF from browser)
• Origin: https://myjiradomain.com (required only, if you get an XSRF)

JSON request body for Select List (single choice) / Radio Buttons

{
  "fields": {
    "project": { 
      "key": "REST"
    },
    "summary": "Issue created from REST API",
    "issuetype": {
      "id": "1"
    },
    "customfield_10100": {
      "value": "First"
    }
  }
}

JSON request body for Select List (multiple choices) / Checkboxes

{
  "fields": {
    "project": {
      "key": "REST"
    },
    "summary": "Issue created from REST API",
    "issuetype": {
      "id": "1"
    },
    "customfield_10200": [
      {
        "value": "Apple"
      },
      {
        "value": "Banana"
      }
    ]
  }
}

JSON request body for Select List (cascading)

{
  "fields": {
    "project": { 
      "key": "REST"
     },
    "summary": "Issue created from REST API",
    "issuetype": {
      "id": "1"
     },
    "customfield_10300": {
      "value": "Mammal",
      "child": {
        "value": "Elephant"
      }
    }
  }
}

JSON request body for Select List (cascading) with 'none' on child option

{
  "fields": {
    "project": { 
      "key": "REST"
     },
    "summary": "Issue created from REST API",
    "issuetype": {
      "id": "1"
     },
    "customfield_10300": {
      "value": "Mammal",
      "child": null
    }
  }
}

Tested with Jira Software Server 8.13.3.

[Srikanth Ganipisetty]

This article is good. Thanks @Thomas Deiler 

Srikanth Ganipisetty

[Ian Hayse]

Thank you!  I was trying to overcomplicate updating a checkbox field.   For some reason, I thought there was an internal value for each checkbox that needed to be set.

wrong way:

    "customfield_10200": [
      {
        "value": "1000009"
      },
      {
        "value": "1000010"
      }
    ]

correct: 

    "customfield_10200": [
      {
        "value": "Apple"
      },
      {
        "value": "Banana"
      }
    ]

[Majo Francis _MicroGenesis Techsoft_]

'Group Picker' Custom Field :

"customfield_10073":
{
"name" : "gname"
}

[Debabrata Pramanik]

I have a asset object custom field, which I want to set during ticket creation. The following does not work there. The call goes through, but the custom field is still empty.

"customfield_10100" : [{"key" : "TEST-1"}]

[Maximilian Floß]

@Thomas Deiler 

What is the code when both fields of cascading select list should be Emtpy/null?

{
  "fields": {
    "project": { 
      "key": "REST"
     },
    "summary": "Issue created from REST API",
    "issuetype": {
      "id": "1"
     },
    "customfield_10300": {
      null,
      "child": null
    }
  }
}

[Thomas Deiler]

@Maximilian Floß Does your JSON work?

[Melissa Nielsen]

Just wanted to chime in and say that if you also want to submit a child value in the cascading select list, you have to add "value" as shown here: