Microservice API authentication solution based on go-zero

With the popularity of microservice architecture, more and more applications need to implement API authentication functions. API authentication can protect enterprise data and resources and prevent unauthorized clients from causing damage to the system. As a framework for rapid development of microservices, go-zero provides an easy-to-use and flexible back-end API authentication solution.

What is API authentication?

API authentication usually refers to verifying the identity and permissions of the client to access resources through the API. This process usually includes the following steps:

1. The client provides identification (such as username and password).
2. The authentication server verifies the identity.
3. If the verification is successful, the authentication server generates a token and returns it to the client.
4. The client sends the token to the API server.
5. The API server uses token to verify identity and permissions.
6. If the verification is successful, the API server returns the requested resource.

When implementing API authentication, the following aspects need to be considered:

1. Security: The authentication scheme must be able to securely transmit identity and credential information over the network.
2. Scalability: The authentication scheme must be able to easily extend users and permissions when needed.
3. Easy to use: The authentication scheme should be easy to use and understand so that developers and administrators can manage and maintain it.
4. Performance: The authentication scheme should be able to process authentication requests quickly and efficiently to avoid overhead affecting system performance.

API authentication scheme based on go-zero

go-zero is a framework for rapid development of microservices and provides a variety of methods to implement API authentication. In this article, we will introduce an API authentication scheme based on go-zero.

1. Authentication Service

go-zero provides a convenient and easy-to-use user authentication service. You just need to create a service called auth using the goctl tool. It will automatically generate basic user, role and permission models. You can store them using a SQL or NoSQL database.

The following is an example command to use goctl to create an auth service:

goctl api new auth -dir auth

This command will create an authentication service in the directory auth. The main responsibility of the authentication service is to verify the identity of the client and return the token to the client. It can also provide other service endpoints such as user management, role management, and permission management.

2. API Gateway

go-zero also provides a fast API gateway that can be used to manage API requests and route requests to the appropriate service endpoint. API Gateway uses a lightweight API Gateway Application (AGA), which integrates authentication services and provides a proxy layer to manage API requests and route requests to appropriate service endpoints.

The following is an example command to create an API gateway using goctl:

goctl api new gateway -dir gateway

This command will create an API gateway in the directory gateway. You need to use the goctl tool to add the authentication service module and routing processing logic. Finally, you can start the API gateway application using the go run command.

3. Client

The last step of API authentication is the client. The client uses the token returned by the authentication service to make API calls. The client needs to add the token to the HTTP request header so that the API server can authenticate the client's request.

The following is an HTTP client written in Go language to demonstrate how to add tokens to HTTP requests:

// Package main implements a simple HTTP client.
package main

import (

"fmt"
"net/http"

)

func main() {

// Create a new HTTP request.
req, err := http.NewRequest(http.MethodGet, "https://example.com/api/resource", nil)
if err != nil {
    panic(err)
}

// Add the token to the request.
token := "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c"
req.Header.Add("Authorization", token)

// Send the request and print the response.
resp, err := http.DefaultClient.Do(req)
if err != nil {
    panic(err)
}

defer resp.Body.Close()

fmt.Println(resp.StatusCode)

}

Note: Please replace token with authentication The token returned by the service.

Summary

go-zero provides a powerful back-end API authentication solution, including authentication service, API gateway and HTTP client. It is an easy-to-use, flexible and efficient solution that can scale to large-scale enterprise applications. If you are developing an application with a microservice architecture, we strongly recommend that you consider using go-zero as an API authentication solution.

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