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Validation with Fiber

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This example demonstrates how to use go-playground/validator for input validation in a Go Fiber application.

Description​

This project provides a basic setup for validating request data in a Go Fiber application using the go-playground/validator package. It includes the necessary configuration and code to perform validation on incoming requests.

Requirements​

Project Structure​

  • main.go: The main application entry point.
  • config/env.go: Configuration file for environment variables.
  • go.mod: The Go module file.
  • .env: Environment variables file.

Setup​

  1. Clone the repository:

    git clone https://github.com/gofiber/recipes.git
    cd recipes/validation

  2. Install the dependencies:

    go mod download

  3. Create a .env file in the root directory with the following content:

    PORT=":8080"

  4. Run the application:

    go run main.go

The application should now be running on http://localhost:8080.

Example Usage​

  1. Send a POST request to http://localhost:8080/validate with a JSON payload:

    {
        "name": "John Doe",
        "email": "john.doe@example.com",
        "age": 30
    }

  2. The server will validate the request data and respond with a success message if the data is valid, or an error message if the data is invalid.

Code Overview​

main.go​

The main Go file sets up the Fiber application, handles HTTP requests, and performs validation using the go-playground/validator package.

config/env.go​

The configuration file for loading environment variables.

package config

import "os"

// Config func to get env value
func Config(key string) string {
    return os.Getenv(key)
}

Conclusion​

This example provides a basic setup for validating request data in a Go Fiber application using the go-playground/validator package. It can be extended and customized further to fit the needs of more complex applications.

References​