Specifies the global attributes to be attached to the UI components container element.
An object that specifies what and when to validate, and how to apply the validation result.
With multer the user inputs are accessible through req.file for the file input field and req.bodyfor the other input fields (if there is any). An object defining configuration properties for the Validator UI component. An object that specifies what and when to validate, and how to apply the validation result. custom() validation function chained to your validation middleware. Express-validator is an express middleware that provides us with validation and sanitization functions. In order to validate a file input field you could use multer: middleware that adds a body object and a file object to the request object.Īnd then use express-validator. Thanks for your question, hope this will help someone To use the custom validator, do this first to make sure empty files will not throw undefined error: restLogo = typeof req.files != "undefined" ? : '' įinally to use your custom validator: req.checkBody('rest_logo', 'Restaurant Logo - Please upload an image Jpeg, Png or Gif').isImage(restLogo) Var extension = (path.extname(filename)).toLowerCase() Var expressValidator = require('express-validator') You'll need to write a custom validator, express-validator allows for this, okay this is an example of one //requiring the validator Despite being a framework itself, there are many others. Express is a Node.js web application framework that provides a robust set of features for building web applications. Step 4: Writing custom message for validation. Req.checkBody('image', 'You must select an image.').notEmpty() Step 1: Initializing an express application. I had the same problem, the below code will not work since express-validator only validates strings req.checkBody('title', 'The title can't be empty.').notEmpty()
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