Retrieving forks (including branches and commits) per repository using Node JS and GitHub's GraphQL API

get-forks-branches-commits-per-repository.js

const { graphql } = require('@octokit/graphql');

// UPDATE the OWNER and the REPOSITORY constants
const OWNER = "Tomerfi";
const REPOSITORY = "aioswitcher";

// max 100 for all, for more - use pagination leveraging edges, pageInfo, and cursor.
const TOTAL_FORKS_TO_RETRIEVE = 100;
const TOTAL_BRANCHES_PER_FORK = 100;
const TOTAL_COMMITS_PER_BRANCH = 10; // be careful with this, you might exceed the maximum limit of 500,000 possible nodes.

async function run() {
  // token requirements: https://docs.github.com/en/graphql/guides/forming-calls-with-graphql#authenticating-with-graphql
  const requestParams = {
    headers: {
      authorization: `bearer ${process.env.GITHUB_TOKEN}`,
    }
  };

  const query = `
    {
      repository (owner:"${OWNER}", name:"${REPOSITORY}") {
        forkCount
        forkingAllowed
        forks (first:${TOTAL_FORKS_TO_RETRIEVE}) {
          totalCount
          nodes {
            owner {
              login
            }
            pushedAt
            refs (first:${TOTAL_BRANCHES_PER_FORK}, refPrefix:"refs/heads/") {
              totalCount
              nodes {
                name
                target {
                  ... on Commit {
                    history (first:${TOTAL_COMMITS_PER_BRANCH}) {
                      totalCount
                      nodes {
                        abbreviatedOid
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  `;

  const result = await graphql(query, requestParams);

  console.log(JSON.stringify(result, null, 2));
}

run();

/*
#############################
## Content of package.json ##
#############################
{
  "scripts": {
    "start": "node get-forks-branches-commits-per-repository.js"
  },
  "dependencies": {
    "@octokit/graphql": "^5.0.1"
  }
}

###############
## Execution ##
###############
set GITHUB_TOKEN environment variable
update the above OWNER and the REPOSITORY constants

run `npm i` to install the package
run `npm start` to run the script
*/