Issue custom field update through REST API does not work

[Laurent Delhaie]

My aim is to integrate our Salesforce.com platform with our Jira Service Management platform.

For this, I'm first using Postman to test my API call-outs, but I'm currently stucked on this problem: I can't manage to update the text custom filed I created (customfield_10082) to set back the reference from Salesforce object I create from Jira issue.

In order to update this field I'm doing a PUT on http://MYJIRA.atlassian.net/rest/api/3/issue/{issuekey}, using following JSON:

{

    "fields": {

        "customfield_10082" : "SFDC Ref"

    }

}

Postman is receiving a "200 OK" response code, but when looking at the received JSON or in the Jira app itself, I can see my custom field remains desperately empty:

 "customfield_10082": null

When doing a GET on http://myjira.atlassian.net/rest/api/2/issue/SP-13/editmeta I'm getting the following definition for the field I need to update through REST API:

"customfield_10082": {
"required": false,
"schema": {
"type": "string",
"custom": "com.atlassian.jira.plugin.system.customfieldtypes:textfield",
"customId": 10082
},
"name": "ST Reference",
"key": "customfield_10082",
"operations": [
"set"
]
}

Am I missing something? Maybe am I required to use this "set" operation for the update?

But what's the syntax for using it in my JSON in this case? Or do I have to use the "update" verb instead of "fields" for the update?

I found this example for setting components, but I don't know how to apply this to my custom field:

{ "update" : { "components" : [{"add" : {"name" : "Engine"}}] } }

source: Jira REST API examples (atlassian.com)

Note that the same page also seems to confirm above JSON structure I am currently using for custom field (free text) update. I just feel like I'm going in circles...

Thanks a lot for your help!

[Kalyan Sattaluri]

Hello @Laurent Delhaie 

Can you confirm the end point you are using? You have it as below:

 http://MYJIRA.atlassian.net/rest/api/3/issue/{issuekey}

But the syntax is not right. It should be:

 http://MYJIRA.atlassian.net/rest/api/3/issue/{{issuekey}}

Other than that, everything looks good.

this field allows only "set" operation and using "fields" you are implicitly doing a set. So that's good. Even the meta info shows its a text field so the way you are updating is the correct way. 

Please cross check the smart value in your endpoint. Hope it helps. Thanks!