Cors Error with Rest API

[Lucas Rodrigues de Oliveira]

Hello,

I created the code below to create issues in Jira from Confluence using HTML Macros with Ajax, but I have the following error:

to XMLHttpRequest at 'http://localhost:8080/rest/api/2/issue/' from origin 'http://localhost:8090' has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:8090, http://localhost:8090', but only one is allowed. Access

There is a CORS blocking the URL, I put the confluence address on Jira's whitelist but I didn't succeed

function criarIssue() { 
//This creates a issue in jira. 
var demanda2 = $("#demanda"); 
var username = "myuser"; 
var password = "mypass"; 
var link2 = $("#link"); 
var jsondata = { "fields": 
{ "project": { "key": "B3B" },
 "summary": demanda2.val(), 
"description": "[Demanda Externa |" + link2.val() +"]", 
"reporter": { "name": AJS.params.remoteUser }, 
"issuetype": { "name": "DP" } 
} }; $.ajax({ type: "POST", 
url: "http://localhost:8080/rest/api/2/issue/", 
contentType: "application/json; charset=utf-8",
headers: { "Authorization": "Basic " + "blablablablabla==" },
 dataType: "json", async: false, data: JSON.stringify(jsondata), 
success: function(response) { 
dataToReturn = (response["key"]); 
console.log('issue created!'); }, 
error: function(xhr, errorText) { console.log('Error ' + xhr.responseText); } }); 
return dataToReturn; }

 Is there a way to resolve this without browsers plugins ?  

[Rafael Pinto Sperafico · Accepted solution]

Hi @Lucas Rodrigues de Oliveira ,

You could create the following User Macro in Confluence, however, for this to work you must have an Application Link between Jira and Confluence working.

If the Application Link is configured with OAuth only, you must Allow the user in Confluence performing the action to perform Actions with Jira, the famous Login & Approve.

## Macro title: My Create Jira Issue Macro
## Macro has a body: Y
## Body processing: Rendered
## Output: No Output
##
## Developed by: Rafael Pinto Sperafico
## Date created: 04/09/2019
## Installed by: Rafael Pinto Sperafico

## User Macro to create Jira issue
## @noparams

<script type="text/javascript">
AJS.toInit(function() {
  var createIssue = function(applicationLink) {
  var payload = '{"issues":{"fields":{"project":{"key":"PROJ"},"issuetype":{"name":"Task"},"summary":"CREATE ISSUE FROM CONFLUENCE","description":"USER MACRO DID THAT"}}}';

  jQuery.ajax({
    url: AJS.Confluence.getBaseUrl() + '/rest/jira-integration/1.0/issues?applicationId=' + applicationLink.id,
      type: "POST",
      contentType: "application/json",
      data: payload,
      success: function(data) {
        console.log(data);
      }
    })
    .done(function(data) {
      console.log(data);
    })
  }

//
// Get a list of all application link configured in Confluence
//
  jQuery.ajax({
    url: AJS.Confluence.getBaseUrl() + '/rest/applinks/1.0/listApplicationlinks.json',
    type: "GET",
    dataType: "json",
    success: function(data) {
      console.log(data);
    }
  })
  .done(function(data) {
//
// Iterate over a list of application links 
// search for Jira application link
// create issue in Jira application link found
//
    jQuery.each(data.list, function(i, v) {
      if (v.application.typeId == 'jira') {
        createIssue(v.application);
      }
    })
  });
});
</script>

Tested on Confluence 6.6.7 and 6.15.2.

Kind regards,
Rafael

[Lucas Rodrigues de Oliveira]

Hi Rafal,

Thankyou, your solution is the best!!!

I resolved my problem with a reverse proxy but, i'll implement your suggest in future versions of my application. 

Again, Thankyou! it's a elegant solution.

Kind regards,

Lucas.