"Specify a valid project ID or key" exception while creating an issue from Google Script

[Zet]

I'm trying to create an issue in my Jira (Cloud) project with URL Fetch in Google Script.

The main code is:

    issue = {

        "fields": {

          "issuetype": "Task",

          "summary": "Summary",

          "reporter": {"displayName": "John"},

          "priority": "Medium",

          "project": {"key": projectKey}

        }

      };

    UrlFetchApp.fetch(jiraUrl, {

      method: "POST",

      headers: {

        'Content-Type': "application/json",

        "Authorization": "Basic " + Utilities.base64Encode(userName + ':' + apiToken)

      },

      payload: JSON.stringify(issue)

    });

---

When I run it, I get a 400 exception: Truncated server response: {"errorMessages":[],"errors":{"project":"Specify a valid project ID or key"}}

However, I'm pretty sure that I put the correct key (shows in the issue datas I got from my Jira project in the same URL Fetch way) of my project into the line ("project": {"key": projectKey})

And I also tried using "project": {"id": projectId}, but still the same exception.

I have found similar questions and reports about this exception on the Internet. But it seems no effective solution mentioned ever.

[Marios Marneros]

Hi @Zet , welcome to the Atlassian Community!
I have ran into a similar issue before. Does the user or system trying to create the issue have the correct permissions? You might need to update the Browse Project permission as well as the Create issue Permission. If the user/system that is using the credentials in the request cannot "see" the project, the error you get is that the project id/name is invalid. Please let me know if this solves it! Have a nice day!

[Zet]

Thanks for reply. How to check if I have the Create issue Permission? May I check it in google script with code?

[Zet]

I (the user) can create issues in Browser in the project. Isn't it enough?

[Marios Marneros]

You can update project permissions through project settings by updating the permission scheme. Permission Documentation 

If your user has create issue and browse project permissions you need to use those credentials to make the request (API token) or give permission to the user you are currently using. Let me know if this helps

[Zet]

uhhh... actually I'm not a manager of the project so I can't access the project settings. But I can browse and create issue in the project with the GUI on the project web page.

And I do created an API token for my Jira account (and I tried revoking and recreated a new one).

And I can even get issue datas in my Google Script code with that token, juse can't create issue in it.