英文:
How do we log to stdout with gofiber golang framework?
问题
我正在寻找一种在Go语言的gofiber框架中将一些数据记录到stdout的方法，因为该框架非常安静，大多数情况下不会记录错误。
我曾考虑过使用fmt.Print，但连这个都没有被捕捉到。
你们是如何使用gofiber框架进行故障排除的？当框架很少输出任何内容时，我该如何在代码中检测问题。
以下是我尝试的示例代码，但仍然没有在stdout中得到任何输出：
func GetUserEmail(c *fiber.Ctx) (string, error) {
cookie := c.Cookies("access_token")
token, err := jwt.ParseWithClaims(cookie, &ClaimsWithScope{}, func(token *jwt.Token) (interface{}, error) {
return []byte(SecretKey), nil
})
if err != nil {
return "发现问题", err
}
payload := token.Claims.(*ClaimsWithScope)
email := payload.Subject
fmt.Print("email is", email, "\n")
return email, nil
}
在上述代码中，我使用了fmt.Print("email is", email, "\n")来将email的值打印到stdout，以便进行故障排除，但仍然没有任何输出。
我需要使gofiber输出详细信息以便进行故障排除。
英文:
I am looking for a way to log some data to stdout with gofiber golang framework as the framework is very quiet and does not log errors mostly
I was thinking i could just use fmf.Print but even that does not get picked up at all
How do you guys troubleshoot with the gofiber framework? How i can detect issues within the code when the framework rarely spits anything out.
Here is what i am trying to do for example but getting nothing still in stdout
func GetUserEmail(c *fiber.Ctx) (string, error) {
cookie := c.Cookies("access_token")
token, err := jwt.ParseWithClaims(cookie, &ClaimsWithScope{}, func(token *jwt.Token) (interface{}, error) {
return []byte(SecretKey), nil
})
if err != nil {
return "issues found", err
}
payload := token.Claims.(*ClaimsWithScope)
email := payload.Subject
fmt.Print("email is", email, "\n")
return email, nil
}
from above i have this line fmt.Print("email is", email, "\n") to print the value of email to stdout so i can troubleshoot but nothing gets printed at all
Need to make gofiber verbose to troubleshoot issues
答案1
得分: 0
解析带有声明或自定义声明的JWT时，您应该检查状态。
// 将自定义声明传递给解析函数，cookie参数的数据类型应为字符串
token, err := jwt.ParseWithClaims(cookie, &ClaimsWithScope{}, func(token jwt.Token) (interface{}, error) {
if _, ok := token.Method.(jwt.SigningMethodHMAC); !ok {
return nil, errors.New("unexpected signing method")
}
return []byte(/ your JWT secret/), nil
})
// 将Claims类型断言为适当类型的变量
payload := token.Claims.(*ClaimsWithScope)
如果您没有看到任何fmt.Print()的输出，则必须使用fmt.Println()。
Print：Print不能格式化任何内容，它只是接受一个字符串并打印它
Println：Print Line与Printf()相同，但它会附加一个换行符\n
英文:
To parse a JWT with claims or custom claims you should check the status.
// pass your custom claims to the parser function and data type of cookie parameter should be string
token, err := jwt.ParseWithClaims(cookie, &ClaimsWithScope{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, errors.New("unexpected signing method")
}
return []byte(/* your JWT secret*/), nil
})
// type-assert `Claims` into a variable of the appropriate type
payload := token.Claims.(*ClaimsWithScope)
If you didn't see any output with fmt.Print() then you have to use fmt.Println().
Print :- "Print" This cannot format anything, it simply takes a string and print it
Println :- "Print Line" same thing as Printf() however it will append a newline character\n
答案2
得分: 0
fmt.Println("email is", email, "\n")
代码可以正常工作了，问题是代码没有执行到那一点；最后将它移到代码中更高的位置，现在可以在标准输出中看到打印的内容了。
英文:
fmt.Println("email is", email, "\n")
does work, issue was code was not getting to that point; finally moved it higher up in the code and can now see prints in stdout
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