Get list of contributors who have made commits to a particular file

Question

I am looking for ways to fetch the author/contributor of a commit. I'm really new to github-api and this is giving me more trouble than I imagined.

We're starting with..

• I have the list of contributors
• I can filter the commits by contributor on the github website with ?author= like this
• It is possible to see contributor in file commits too

It should be possible

• All of this makes me think it should be possible to find the contributor to a file by API too.

Problem Description

If I have the URL of the file such as this, is there a github API that shows me the list of contributors who have made commits to that file?

Or, Do I need to use results of multiple API calls like(for instance)

• Repository contributors list
• User Event JSON

I'm thinking of cross-referencing the outputs of those two^ if everything else fails.

Example Output

This should return Pratik855

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*EDIT

I found this SO answer but this is not quite what I'm looking for. While all the requirements are made, I'm unsure how https://api.github.com/repos/csitauthority/csitauthority.github.io/commits?=README translates to https://api.github.com/repos/csitauthority/csitauthority.github.io/commits?=HUGO/content/page/vlan-101.md based on https://github.com/csitauthority/CSITauthority.github.io/blob/master/HUGO/content/post/vlan-101.md because HUGO can only generate the 3rd kind of canonical URL.

---

I am using

• Hugo
• Github pages

Answer 1

To get complete data on all contributors to a particular file in a repository, make a call to the
List commits on a repository endpoint with the file’s repo path as the path parameter’s value:

https://api.github.com/repos/csitauthority/CSITauthority.github.io/commits?path=HUGO/content/post/vlan-101.md

That is, the general form is:

GET /repos/:owner/:repo/commits?path=:path-to-file

That’ll return a JSON object with an array of all the commits for that file. To get the contributor name from each, you have a choice of using commit.author.name or commit.committer.name (depending on which of those you actually want) or author.login or committer.login.

So it’s a single API call — but to get just the names, process the JSON data you get back.

Here’s a simple example of doing it in JavaScript:

const githubAPI = "https://api.github.com"
const commitsEndpoint = "/repos/csitauthority/CSITauthority.github.io/commits"
const commitsURL = githubAPI + commitsEndpoint
const filepath = "HUGO/content/post/vlan-101.md"
fetch(commitsURL + "?path=" + filepath)
  .then(response => response.json())
  .then(commits => {
    for (var i = 0; i < commits.length; i++) {
      console.log(commits[i].commit.author.name)
    }
  })

And here’s an example of how to skip any duplicate names and end with a set of unique names:

const githubAPI = "https://api.github.com"
const commitsEndpoint = "/repos/csitauthority/CSITauthority.github.io/commits"
const commitsURL = githubAPI + commitsEndpoint
const filepath = "HUGO/content/post/grandfather-problem.md"
fetch(commitsURL + "?path=" + filepath)
  .then(response => response.json())
  .then(commits => {
    const names = [];
    for (var i = 0; i < commits.length; i++) {
      if (!names.includes(commits[i].commit.author.name)) {
        names.push(commits[i].commit.author.name);
      }
    }
    console.log(names.join("\n"));
  })