Practical Microservices

Finishing the Application

Back to actions.registerUser, we have two steps left. hashPassword and writeRegisterCommand. Here is hashPassword:

video-tutorials/src/app/register-users/hash-password.js

const bcrypt = require('bcrypt')

// We could pull this out into an environment variable, but we don't
const SALT_ROUNDS = 10
function hashPassword (context) {
  return bcrypt
    .hash(context.attributes.password, SALT_ROUNDS)
    .then(passwordHash => {
      context.passwordHash = passwordHash

      return context
    })
}

module.exports = hashPassword

It uses bcrypt^[49] to hash the password and attaches the hash at context.passwordHash.

Now that everything has checked out, we can finally write the command:

video-tutorials/src/app/register-users/write-register-command.js ...