✨Middy Sparks Joi

Middy Sparks Joi is a middleware for @middy/core. It validates incoming requests, and if an item does not spark joi we thank it and throw an exception.

Getting Started

First, run yarn add middy-sparks-joi @hapi/joi or npm i middy-sparks-joi @hapi/joi in your project directory. Then in your lambda handler:

1const middy = require('@middy/core')
2
3// These middlewares are recommended
4const jsonBodyParser = require('@middy/http-json-body-parser')
5const httpErrorHandler = require('@middy/http-error-handler')
6
7const Joi = require('@hapi/joi');
8const validator = require('middy-sparks-joi')
9
10const schema = Joi.object({
11    body: Joi.object({
12      creditCardNumber: Joi.string().creditcard(),
13      expiryMonth: Joi.date().required(),
14      expiryYear: Joi.date().required(),
15      cvc: Joi.number().integer().required(3),
16      nameOnCard: Joi.alphanum().required()
17      amount: Joi.number().required()
18    }).required()
19});
20
21const processPayment = (event, context, callback) => {
22 // you don't need to validate the event, the schema you passed to middy-sparks-joi does that for you.
23 const { creditCardNumber, expiryMonth, expiryYear, cvc, nameOnCard, amount } = event.body
24
25 // do stuff with this data
26 // ...
27
28 return callback(null, { result: 'success', message: 'payment processed correctly'})
29}
30
31module.exports = {
32  handler: middy(processPayment)
33    .use(httpErrorHandler())
34    .use(jsonBodyParser())
35    .use(validator({
36      schema: ...,
37      options: {}
38    })
39}

That's it! Middy Sparks Joi protects you from inputs that don't spark joi ✨

Building Joi Schemas

The docs for joi can be found here https://hapi.dev/family/joi/api/