express-request-validator-middlewares

An express middleware for validating request data using joi

• Installation

npm install express-request-validator-middlewares
yarn add express-request-validator-middlewares

• Queck start

const express      = require('express');
const Joi          = require('joi');
const reqValidator = require('express-request-validator-middlewares');
const app = express () ;
const port = process.env.PORT || 4000 ;

// VLIDATE REQUEST HEADERS  DATA
app.get(
  '/validate-headers',
   reqValidator.headers(
     Joi.object().required().min(1).keys({
       token : Joi.string().min(24).max(24).required()
     })
   ) , 
   ( req , res , next) => res.send ( 'Headers verifyed')
)

// VLIDATE REQUEST PARAMS  DATA
app.get(
  '/validate-params',
   reqValidator.params(
     Joi.object().required().min(1).keys({
       id : Joi.string().min(24).max(24).required()
     })
   ) , 
   ( req , res , next) => res.send ( 'Headers verifyed')
)

// VLIDATE REQUEST QUERY DATA
app.get(
  '/validate-params',
   reqValidator.query(
     Joi.object().required().min(1).keys({
       serach : Joi.string().min(24).max(24).required()
     })
   ) , 
   ( req , res , next) => res.send ( 'Headers verifyed')
)

// VLIDATE REQUEST BODY DATA
app.get(
  '/validate-params',
   reqValidator.body(
     Joi.object().required().min(1).keys({
       name : Joi.string().min(24).max(24).required(),
       email : Joi.string().email().required(),
     })
   ) , 
   ( req , res , next) => res.send ( 'Headers verifyed')
)

app.listen(port , () => console.log(`Lisning at port :- ${port}`));

• Request error response

When validation failed user gets this response.

{
    "statusCode": 400,
    "ErrorMessage": "Bad request",
    "ErrorType": "Request params validation failed",
    "message": "id is required"
}

• Change request response

You can change statusCode or ErrorMessage or add more keys in response

reqValidator.config({
    statusCode:401 ,
    ErrorMessage:"Validation failed",
    ApiDoc:"check this API docs"
})

• Reference docs

• joi

• Author

  Mahender Rajput

• Let in touch

• Github

• Linked