JSPM – validatorjs-expressjs@1.0.3

Package Exports

validatorjs-expressjs

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (validatorjs-expressjs) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Installation

The validatorjs library makes data validation in JavaScript very easy in both the browser and Node.js. This library was inspired by the Laravel framework's Validator.

Doc validatorjs

$ npm install validatorjs-expressjs

$ yarn add validatorjs-expressjs

Usage

Simple Usage

const express = require("express");
const validator = require("validatorjs-expressjs");
const bodyParser = require("body-parser");
const Validator = require("validatorjs");

const app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

// IF YOU WANT TO ADD CUSTOM VALIDATE //
Validator.registerAsync("unique", async function(
  value,
  attribute,
  request,
  passes
) {
  passes();
});

app.use(
  validator({
    Validator
  })
);
// ------------------------------------

app.post("/products", [
  validator({
    rules: function(req) {
      return {
        name: "required|unique",
        price: "required|numeric"
      };
    }
  }),
  function(req, res, next) {
    res.json({ message: "submit products ok" });
  }
]);

app.use((err, req, res, next) => {
  res.status(400).json({
    message : err.message
  });
});

app.listen(3000, function() {
  console.log("web server listening on port 3000");
});

Custom Field Label

app.post("/products", [
  validator({
    rules: function(req) {
      return {
        firstName: "required",
        lastName: "required"
      };
    },
    //Custom field label
    attributeNames: req => {
      return {
        firstName: "First Name",
        lastName: "Last Name",
      };
    }
  }),
  function(req, res, next) {
    res.json({ message: "submit products ok" });
  }
]);

Error Response

{
  "message" : "The First Name field is required."
}

Separate Request File

src/request/product_create_request.js

module.exports = {
  //Rule
  rules: function(req) {
    return {
      firstName: "required",
      lastName: "required"
    };
  },
  //Custom field label
  attributeNames: req => {
    return {
      firstName: "First Name",
      lastName: "Last Name",
    };
  }
}

const productCreateRequest = require("./request/product-create.request");

app.post("/products", [
  validator(productCreateRequest),
  function(req, res, next) {
    res.json({ message: "submit products ok" });
  }
]);

License

Credits

validatorjs created by David Tang