models-validator

models-validator validates JavaScript objects based on the declared model. It is easy to use, you can type-safe your JavaScript objects with a few methods.

Installation

Use the package manager npm to install models-validator.

npm i models-validator

Usage

const modelsValidator = require("models-validator");

let personModel = modelsValidator.createModel("personModel", {
    id: "number",
    firstName: "string",
    lastName = "string",
    birthDate = "string"
});

// Returns an object containing the isValid and errorMessage properties.
let validationResult = personModel.validate({
    id: 1,
    firstName: "Onur",
    lastName: "Kayabasi",
    birthDate: "1997-08-03"
}, false, false);

personModel.validate(model, additionalContent = true, caseSensivite = false) takes the additionalContent and caseSensitive optional parameters (by default: true, false respectively).

You can allow additional props to the model with the additionalContent parameter, while you can allow case sensitivity in prop names with caseSensitive parameter.

You can also use models-validator for your express web APIs validity.

const express = require("express");
const modelsValidator = require("models-validator");

const app = express()

app.use(
  modelsValidator.modelValidatorMiddleware({
    "/api/sendEmail": modelsValidator.createModel("sendEmailModel", {
      subject: "string",
      message: "string",
    }),
  })
);

app.post('/api/sendEmail', function (req, res) {
  ...
})

modelsValidator.modelValidatorMiddleware(modelsWithMappedPoints) returns validation result object which has isValid and errorMessage props with 400 Bad Request status code if validation is unsuccessful. If the validation is successful, the request is passed on to the next middleware.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

MIT