Golang implements the review process

With the rapid development of the Internet, the requirements for information accuracy and security are becoming higher and higher. Therefore, in many websites and systems, it is particularly important to implement a complete review process. This article will introduce in detail how to quickly implement an audit process through Golang language.

1. What is the review process?

The review process usually consists of a series of status transfers and reviewer operations. Its main function is to ensure the accuracy, completeness and legality of information. , including but not limited to registration review, article review, order review, etc. Implementing an audit process that meets the company's business needs plays a very important role in ensuring the normal operation of the business and the integrity of the data.

2. Introduction to Golang language

Golang is an efficient, strongly typed, and highly concurrency programming language. It has an excellent memory management mechanism that can ensure program stability and efficiency under high concurrency conditions. Compared with other programming languages, Golang is more suitable for processing high concurrency and large amounts of data. In addition, Golang is easy to learn, lightweight, and can be used on any platform.

3. Implementation of the review process

Let’s discuss how to implement an review process based on the Golang language.

1. Requirements analysis

Before implementing the review process, we need to conduct a needs analysis first. For example, the article review process is as follows:

• Pending review: After the article is submitted, it is waiting for review.
• Under review: The reviewer is reviewing the article, but the review has not yet passed.
• Passed review: The reviewer successfully reviewed and published the article to the official channel.
• Review rejection: The reviewer fails the review and the original author is notified to modify or refuse to publish.

2. Database design

Next, you need to design a database to store audit information. We need to design an Article table, including the following fields: ID, Title, Content, CreateTime, Status, AuditID, AuditTime. Among them, Status represents the status of the article, AuditID represents the reviewer ID, and AuditTime represents the review time.

3. Build a server

We need to build an HTTP server to handle client requests. We can use the net/http package provided by Golang to achieve this.

4. Routing design

Before building the HTTP server, we need to design the routing first. You can use third-party routing frameworks such as gorilla/mux to handle different requests.

5. User authentication

During the review process, we need to authenticate and authorize users. This can be achieved using third-party authentication frameworks such as JWT.

6. Submit for review

In the review process, the article needs to wait for review after submission. We can represent the status of the article through the Status field in the Article table.

7. Review processing

The review process requires review by reviewers. Articles can be published only after passing the review. During the audit process, auditors need to be certified, authorized and other operations, which can be achieved through third-party authentication frameworks such as JWT.

8. Notification of review results

After the review is completed, the original author needs to be notified of the review results. Notifications can be sent via email, text message, WeChat, etc.

4. Review process sample code

Next, we will take the article review process as an example to demonstrate how to implement it through the Golang language.

1. Routing design

Use gorilla/mux package to implement routing design:

router := mux.NewRouter()
router.HandleFunc("/article/add", AddArticle)
router.HandleFunc("/article/list", GetArticles)
router.HandleFunc("/audit/list", GetAuditList)
router.HandleFunc("/audit/pass", AuditPass)
router.HandleFunc("/audit/reject", AuditReject)

2.JWT authentication

Use jwt-go package to implement JWT certification:

//生成JWT Token
func createToken(user string) (string, error) {
    token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
        "user":user,
        "exp":time.Now().Add(time.Hour * 24).Unix(),
    })
    return token.SignedString([]byte("mysecret"))
}

//中间件JWT认证
func tokenMiddleware(handler http.HandlerFunc) http.HandlerFunc {
    return func(writer http.ResponseWriter, request *http.Request) {
        tokenString := request.Header.Get("Authorization")
        if tokenString == "" {
            http.Error(writer, "Token required", http.StatusUnauthorized)
            return
        }
        tokenString = strings.Replace(tokenString, "Bearer ", "", -1)
        token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
            return []byte("mysecret"), nil
        })
        if err != nil || !token.Valid {
            http.Error(writer, "Unauthorized", http.StatusUnauthorized)
            return
        }
        handler(writer, request)
    }
}

3. HTTP interface implementation

// 添加文章
func AddArticle(writer http.ResponseWriter, request *http.Request) {
    title := request.FormValue("title")
    content := request.FormValue("content")
    if title == "" || content == "" {
        http.Error(writer, "Invalid params", http.StatusBadRequest)
        return
    }

    // 获取当前用户
    user, ok := request.Context().Value("user").(string)
    if !ok {
        http.Error(writer, "Unauthorized", http.StatusUnauthorized)
        return
    }

    // 添加文章
    status := "wait"
    err := db.Exec("INSERT INTO articles (title, content, status, create_time, author) VALUES (?, ?, ?, ?, ?)", title, content, status, time.Now().Unix(), user).Error
    if err != nil {
        http.Error(writer, err.Error(), http.StatusBadRequest)
        return
    }

    writer.Write([]byte("success"))
}

// 获取文章列表
func GetArticles(writer http.ResponseWriter, request *http.Request) {
    // 获取当前用户
    user, ok := request.Context().Value("user").(string)
    if !ok {
        http.Error(writer, "Unauthorized", http.StatusUnauthorized)
        return
    }

    // 获取文章列表
    var articles []Article
    err := db.Where("author = ?", user).Find(&articles).Error
    if err != nil {
        http.Error(writer, err.Error(), http.StatusBadRequest)
        return
    }

    // 返回文章列表
    writer.Header().Set("Content-Type", "application/json")
    json.NewEncoder(writer).Encode(articles)
}

// 获取审核列表
func GetAuditList(writer http.ResponseWriter, request *http.Request) {
    // 获取当前用户
    user, ok := request.Context().Value("user").(string)
    if !ok {
        http.Error(writer, "Unauthorized", http.StatusUnauthorized)
        return
    }

    // 查询审核列表
    var articles []Article
    err := db.Where("status = ?", "wait").Find(&articles).Error
    if err != nil {
        http.Error(writer, err.Error(), http.StatusBadRequest)
        return
    }

    // 返回审核列表
    writer.Header().Set("Content-Type", "application/json")
    json.NewEncoder(writer).Encode(articles)
}

// 审核通过
func AuditPass(writer http.ResponseWriter, request *http.Request) {
    id := request.FormValue("id")
    if id == "" {
        http.Error(writer, "Invalid params", http.StatusBadRequest)
        return
    }

    // 获取当前用户
    user, ok := request.Context().Value("user").(string)
    if !ok {
        http.Error(writer, "Unauthorized", http.StatusUnauthorized)
        return
    }

    // 审核文章
    status := "pass"
    err := db.Exec("UPDATE articles SET status = ?, audit_id = ?, audit_time = ? WHERE id = ?", status, user, time.Now().Unix(), id).Error
    if err != nil {
        http.Error(writer, err.Error(), http.StatusBadRequest)
        return
    }

    writer.Write([]byte("success"))
}

// 审核拒绝
func AuditReject(writer http.ResponseWriter, request *http.Request) {
    id := request.FormValue("id")
    if id == "" {
        http.Error(writer, "Invalid params", http.StatusBadRequest)
        return
    }

    // 获取当前用户
    user, ok := request.Context().Value("user").(string)
    if !ok {
        http.Error(writer, "Unauthorized", http.StatusUnauthorized)
        return
    }

    // 审核文章
    status := "reject"
    err := db.Exec("UPDATE articles SET status = ?, audit_id = ?, audit_time = ? WHERE id = ?", status, user, time.Now().Unix(), id).Error
    if err != nil {
        http.Error(writer, err.Error(), http.StatusBadRequest)
        return
    }

    writer.Write([]byte("success"))
}

5. Summary

This article introduces how to implement an review process based on article review through Golang language. While implementing the review process, we also learned routing design, JWT authentication, HTTP interface implementation, etc. I hope this article will be helpful to readers who are developing Golang.

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