golang jwt 签署令牌Authentication token

1.要安装 jwt 包，首先需要 安装Go，然后可以使用下面的命令将其添加jwt-go为 Go 程序中的依赖项。

go get -u github.com/golang-jwt/jwt/v5

2.将其导入到您的代码中：

import "github.com/golang-jwt/jwt/v5"

3.demo

func Test(t *testing.T) {
//商户
    subject := "01H"

    // 密钥
    secretBase64 := "AwFj+OTCI="
    secret, err := base64.StdEncoding.DecodeString(secretBase64)
    if err != nil {
        log.Fatalf("Error decoding base64 secret: %v", err)
    }

    // 过期秒数
    expirseIn := 60 * time.Second

    // 创建jwt token
    token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
        "sub": subject,
        "exp": time.Now().Add(expirseIn).Unix(),
    })

    // 使用密钥签名
    tokenString, err := token.SignedString(secret)
    if err != nil {
        log.Fatalf("Error signing token: %v", err)
    }
    fmt.Println("tokenString=", tokenString)

    m := make(map[string]interface
    m["username"] = "www"
    m["payer"] = "qqq"

    // 将数据转为JSON格式
    jsonData, err := json.Marshal(m)
    if err != nil {
        log.Fatalf("Error marshalling JSON: %v", err)
    }

    client := &http.Client{}
    url := "https://demo.com"
    method := "POST"
    req, err := http.NewRequest(method, url, bytes.NewBuffer(jsonData))
    if err != nil {
        log.Fatalf("Error creating request: %v", err)
    }
    req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", tokenString))
    req.Header.Set("Content-Type", "application/json; charset=utf-8")

    resp, err := client.Do(req)
    if err != nil {
        log.Fatalf("Error sending request: %v", err)
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, err := ioutil.ReadAll(resp.Body)
        if err != nil {
            log.Fatalf("Error reading response body: %v", err)
        }
        log.Printf("Response body: %s", string(body))
    }
    log.Printf("Response StatusCode: %d,%d", resp.StatusCode,http.StatusOK)

    info := TestRespone{}
    err = ffjson.Unmarshal(body, &info)
    if err != nil {
        log.Printf("body Unmarshal Err %v", err)
    }
    log.Printf("info.Code======%s",info.Code)
}