Home > Article > Backend Development > How to build a RESTful API using Golang and use logging?
When using Golang to build a RESTful API, you can take the following steps: create routes and handle requests. Start the API. Use logging: Configure logging. Use logging in API handlers.
How to use Golang to build a RESTful API and use logging
Introduction
Building a RESTful API is a common task for Go developers. Logging is also crucial for any application. This article will guide you in building a basic RESTful API using Golang and introduce how to implement logging.
Prerequisites
Create Project
Create a new Go project:
go mod init golang-restful-api
Build API
1. Routing
Create a new filerouter.go
, which contains the route to handle the request:
package main import ( "github.com/gin-gonic/gin" ) func main() { router := gin.Default() router.GET("/ping", func(c *gin.Context) { c.JSON(200, gin.H{ "message": "pong", }) }) router.Run() }
2. Start the API
In the main
function, gin.Engine
is instantiated and a route handler is added that handles GET requests from the /ping
route. It will return message "pong"
.
Logging
1. Configure logging
Create a new filelogger.go
, which contains logging configuration:
package main import ( "log" "os" ) var logger = log.New(os.Stdout, "", 0)
2. Using logging
In the API handler, use logger
to log information:
func main() { // ... router.GET("/ping", func(c *gin.Context) { logger.Println("Received ping request") // ... }) }
Practical case
Use curl to test the API:
curl http://localhost:8080/ping
This will output the following log record:
Received ping request
Conclusion
You have learned how to build a basic RESTful API using Golang with integrated logging. By following these steps, you can build powerful and scalable APIs for your applications.
The above is the detailed content of How to build a RESTful API using Golang and use logging?. For more information, please follow other related articles on the PHP Chinese website!