express-body-validate

express middleware to validate body request, using mongoose schemes

install

npm install express-body-validate

usage

Define your mongoose scheme, e.g.

// file users.model.js
const {Schema, model} = require('mongoose')

const schema = new Schema({
  firstname: {type: String, required: true},
  lastname: {type: String, required: true},
  email: {type: String, required: true, unique: true},
})

// in line below, we define model with name 'users'
module.exports = mongoose.model('users', schema)

Below you can see a typical POST route to /users using a method in external controller, in example users.controller.js

const app = require('express')()
const users = require('./users.controller.js')

app.post('/users', users.create)

To use the middleware validation, just add it to route like below

const bodyValidateUsingModel = require('express-body-validate')
app.post('/users', bodyValidateUsingModel('users'), users.create)

Validations

• required
• unique

required

POST /users

// 400 Bad Request

// body response
{
    "errors": [
        "firstname is required",
        "lastname is required",
        "email is required"
    ]
}

unique

// POST /users

// body request
{
    "firstname": "john",
    "lastname": "stark",
    "email": "[email protected]"
}

// 400 Bad Request

// body response
{
    "errors": [
        "email already used ([email protected])"
    ]
}