recursive-chaining.js

var github = {
  getUserRepos: function(uri, repos) {
    return request({
      "method": "GET",
      "uri": uri,
      "json": true,
      "resolveWithFullResponse": true,
      "headers": {
        "Authorization": "Bearer " + github.token,
        "User-Agent": "My little demo app"
      }
    }).then(function(response) {
      if (!repos) {
        repos = [];
      }
      repos = repos.concat(response.body);
      console.log(repos.length + " repos so far");
      
      if (response.headers.link.split(",").filter(function(link){ return link.match(/rel="next"/) }).length > 0) {
        console.log("There is more.");
        var next = new RegExp(/<(.*)>/).exec(response.headers.link.split(",").filter(function(link){ return link.match(/rel="next"/) })[0])[1];
        return github.getUserRepos(next, repos);
      }
      return repos;
    });
  }
}

function main(params) {
  github.token = params.token;
  return github.getUser()
    .then(github.getUserReposUrl)
    .then(github.getUserRepos);
}