Cloudant create user

auth.js

var cradle = require('cradle');
var crypto = require('crypto');

cradle.setup({
  host: 'foo.cloudant.com',
  port: 80,
  cache: false,
  timeout: 5000
})

var conn = new (cradle.Connection)({
  secure: true,
  auth: { username: "user", password: "pass" }
})

var db = conn.database('_users')

function createUser(name, password, callback){
  db.get(name, function (err, doc) {
    if(err && err.error === 'not_found'){
      var hashAndSalt = generatePasswordHash(password)
      db.save("org.couchdb.user:" + name, {
        name: name,
        password_sha: hashAndSalt[0],
        salt: hashAndSalt[1],
        password_scheme: 'simple',
        type: 'user'
      }, callback)
    } else if(err) {
      callback(err)
    } else {
      callback({error: 'user_exists'})
    }
  })
}

function generatePasswordHash(password){
  var salt = crypto.randomBytes(16).toString('hex');
  var hash = crypto.createHash('sha1');
  hash.update(password + salt);
  return [hash.digest('hex'), salt];
}

createUser('alice', '123')

//$ curl -X POST https://foo.cloudant.com/_session -d 'name=alice&password=123'
// {"ok":true,"name":"alice","roles":[]}

Awesome. Just turned this into a little npm package, cloudant-user. Very useful when creating a private npm registry/repository on Cloudant. Thanks for your work!

So helpful!