NODEJS CRUD API

A node js crud API to determine the opaque nature of elections

MODEL

VIEW

CONTROLLER

//

API LAYER - rest api, graphql, grpc, trpc, soap/ Validation CONTROLLER - calls service layer functions

POST /elections { candidate: '', votes: 0, party: '' }

/** elections/actions.js / const createUserAction = async (req, res, next) => { try { const user = await createUserService(req.body) return res.send({ data: user }) } catch (error) { return next(error) } } / end of file **/

const validateMiddleware = ({ schema }) => (req, res, next) { }

/** utils/middleware/validate.js **/ function validateMiddleware ({ schema }) { return function actualMiddlware (req, res, next) { // { email: 'brian@example.com', password: 'weakpass' } // req.query, req.params, req.headers const { err, obj } = schema.validate(req.body, {}) if (err) { return next(err) } return next() } }

module.exports = validateMiddleware /** end of file **/

/** elections/index.js **/ const validateMiddleware = require('../../utils/middleware/validate')

const schema = joi.object().keys({ email: joi.string().email().required(), password: joi.string().required() })

api .POST( '/elections', validateMiddleware({ schema }), createUserAction/createUserController ) .use((err, req, res, next) => { // handles errors passed over in next callback })

/** end of file **/

SERVICE ** BUSINESS LOGIC ** // CREATE A NEW USER - user - { email: brian@example.com, password: weakpass } // SERVICE LEVEL VALIDATION OF user // Ensure user does not exist // Encrypt the password // Pass data to model layer - { email: brian@example.com, password: 'asdgakooiq0e20198531jlkjaksdpga' } // return user back to api layer

MODEL

• model.save(user)