How to query pull request by number, using Github's v4 GraphQL API?

Question

I can query the first pull request like this:

query {
  repository(owner: "test_owner", name: "test_name") {
    pullRequests(first: 1) {
      nodes {
        id
        number
        title
      }
    }
  }
}

But how do I query a certain pull request based on its number?

The following doesn't work:

query {
  repository(owner: "test_owner", name: "test_name") {
    pullRequests(first: 1, number: 50) { <-- CANNOT FILTER BY `number`
      nodes {
        id
        number
        title
      }
    }
  }
}

Thanks for any help!

Answer 1

Use pullRequest instead of pullRequests connection :

Returns a single pull request from the current repository by number.

{
  repository(owner: "nodejs", name: "node") {
    pullRequest(number: 2) {
      id
      number
      title
    }
  }
}

Try it in the explorer