URL: http://ip:port/pixelhue/v1/node/open-detail
Method：get
Query:
{
    "nodeId": 1
}
Response:
{
    "code": 0,
    "message": "ok",
    "data": {
        "sn": "1231231042541226",
        "startTime": "1718282915976"    }
}

var Secret = []byte("whatasecret")  //The client obtains the service start time as the key by calling the newly added node information interface from the UServer.

// JWT expiration time, set according to the actual environment
const expiration = 2 * time.Minute

type Claims struct {
    // Custom fields can include username, user ID, user role, etc.
    SN string
    // jwt.StandardClaims includes the officially defined fields
    jwt.StandardClaims
}

func GetToken(SN string) (string, error) {
    // Create declaration
    a := &Claims{
        SN:  (sn value returned by the open-detail interface),
        StandardClaims: jwt.StandardClaims{
            ExpiresAt: time.Now().Add(expiration).Unix(), // Expiration time
            IssuedAt:  time.Now().Unix(),                 // Issuance time
            Issuer:    "gin-jwt-demo",                    // Issuer
            Id:        "",                                // Select this as needed, in some implementations, this ID is controlled to determine whether it is still valid based on black/white list.
            NotBefore: 0,                                 // Start time in effect
            Subject:   "",                                // Subject
        },
    }
    // Create a signature object using the specified hash method
    tt := jwt.NewWithClaims(jwt.SigningMethodHS256, a)
    return tt.SignedString(Secret)
}