ExpressJS middleware for verifying Amazon SNS notifications using sns-validator (no dependency on the AWS SDK).

• NodeJS 10+
• ExpressJS 4+
• body-parser 1.4+

npm install --save express-sns-validator

Add to the route handler you will use to subscribe to Amazon SNS notifications. If the request does not validate, an HTTP 400 will be returned.

Note: you need body-parser to parse the JSON body from SNS.

const express = require('express')
const bodyParser = require('body-parser')
const snsMiddleware = require('express-sns-validator')

const app = express()

app.use(bodyParser.json()) // required for express-sns-validator to work properly

app.post('/notifications/sns', snsMiddleware(), (req, res) => {
  // do stuff with req.body
});

MIT License