400 Bad Request while updating an issue via REST API

Here is the code that I am attempting to use:

global class SalesforceJiraUpdate {
    public string endpoint='https://xxx.atlassian.net/rest/api/2/issue/';             //JIRA URL
    public String username = 'xxx';        // JIRA username
    public String password = 'xxx';       // JIRA password

    public static void updateIssue(string key,string summary,string description,string Jiraid){
        key = Jiraid;
        new SalesforceJiraUpdate(key,summary,description,Jiraid);

    public String authHeader(){
        Blob headerValue = Blob.valueOf(username+':'+password);
        return 'Basic ' + EncodingUtil.base64Encode(headerValue);

    public SalesforceJiraUpdate(string key,string summary,string description,string Jiraid){
        HttpRequest req = new HttpRequest();
        Http http = new Http();

        //Set HTTPRequest header properties

        req.setHeader('Accept', 'application/json');
        Blob headerValue = Blob.valueOf(username+':'+password);
        req.setHeader('Authorization','Basic '+ EncodingUtil.base64Encode(headerValue));
        system.debug('the endpoint is :'+endpoint);

        String UpdateIssueJson= '{"update": {"summary":[{"set":"'+summary+'"}],"description":[{"set":"'+description+'"}], "issuetype":[{"set" :{"name": "Bug"}}]}}';

        String JSONData = JSON.serializePretty(UpdateIssueJson);
        system.debug('after response....'+UpdateIssueJson);

            //Execute web service call here
            HTTPResponse res = http.send(req);
            String ResponseJsonString = res.getBody();
            System.debug('ResponseJsonString '+res);

        catch(System.CalloutException e){
            System.debug('Callout error: '+ e);

4 answers

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Hi Robert, there was issue in framing the Json. I have solved it.

String upJson= '{"fields":{"summary":"'+summary+'","description":"'+description+'"}}';




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Have you tried to get a locally running JIRA and use the Rest API Browser to make your requests?

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Robert, am able to create an Issue in JIRA, while updating it response is Bad request and 400 error.

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I have tried to duplicate this using Postman on my local machine and have not had an issue:

Screen Shot 2016-02-05 at 9.15.40 am.png

From here I can only think of only two potential issues:

  • does the Issue that you are trying to set the Issue Type of to "Bug" exist inside a project that has the issue type "Bug"?
  • Can you please use a JSON library to build your JSON? If summary or description contain strings that make for invalid JSON then you will get a bad request instead.

Those are the only two issues that I can think of right now that might cause this behaviour. Please tell me if that works / helps. Otherwise, can you please provide screenshots of the Issue that you are trying to update and the contents of the variables that you are setting for your application? Cheers.

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