request-guardian v1.0.19
Readme for Request-Guardian
request-guardian
is a middleware function that validates incoming requests against a set of validation rules using express-validator
. It can be used to ensure that data sent to a server is in the expected format and meets certain criteria. If the validation fails, it returns a 400 error response with an array of validation errors.
Installation
To install request-guardian
, use npm
or yarn
.
npm install request-guardian
yarn add request-guardian
Usage
request-guardian
is a middleware function that can be used with Express
applications. To use it, simply require the module and use it as middleware for your routes.
NOTE: Make sure that you call the validate() method after a middleware to parse incoming requests with JSON payloads.
const express = require('express');
const validate = require('request-guardian');
const app = express();
// middleware to parse incoming requests with JSON payloads.
app.use(express.json());
// Use Request Guardian middleware
validate(app);
// define your routes
app.post('/users', (req, res) => {
// handle validated request
});
Validation rules are defined in separate files located in the utils/validations/index.js
directory. request-guardian
will look for a file with the same name as the current route and load any validation rules defined within that file.
// utils/validations/index.js
const { body } = require('express-validator');
module.exports = {
'/api/authentication/signup': [
body('email').isEmail(),
body('password').isLength({ min: 8 }),
]
} ;
If no validation rules are found for the current route, request-guardian
will simply pass the request to the next middleware function in the stack.
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