How to get all issueKeys in a jira project by rest api?

[Ronaldo Huang]

I have a jira projectKey,and I want to get all issueKeys by rest api.

[Daniel Wong · Accepted solution]

Hi Ronaldo,

I'm going to quote an answer (with a bit of updates to direct at this question) from a previous answerer as that person has given a very good description and brief guide on how to use Jira's REST API:

1.  Get the total issues in a project with a basic and 'quick and light' query

   1. URL: https://<server>/rest/api/2/search?jql=project=<YourProjectKey>

   2. This gives a result like --> 

      { "startAt": 0,
        "maxResults": 50,
        "total": 24,
        "issues": [...] }

2. Iterate over the total number of issues to fetch the desired details/fields of each issue.
   1. Note: Maximum allowable fetch seems to be 1000 issues at a time.
   2. We can also filter the fields that we are interested to fetch. Since you are only interested in key, we will filter fields shown to just key.

   3. search on URL: "https://<server>/rest/api/2/search?jql=project=<YourProjectKey>&fields=key"

I highly suggest reading the previous answerer's post as it will give you more context and has some other useful tips to handle projects with > 1000 issues - sayeed1310's answer