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Comments (3)

LieLieLiekey avatar LieLieLiekey commented on June 8, 2024

version v5 used the joinedError type

Alternatively, is there any way to identify whether a certain error, such as ErrTokenExpired, is included within the joinedError?

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oxisto avatar oxisto commented on June 8, 2024

You should be able to use errors.Is with the specific error that you want. This should work independently whether a joined error or the old validation error is used. See the following example:

jwt/example_test.go

Lines 158 to 181 in 33d62b4

func ExampleParse_errorChecking() {
// Token from another example. This token is expired
var tokenString = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJleHAiOjE1MDAwLCJpc3MiOiJ0ZXN0In0.HE7fK0xOQwFEr4WDgRWj4teRPZ6i3GLwD5YCm6Pwu_c"
token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
return []byte("AllYourBase"), nil
})
if token.Valid {
fmt.Println("You look nice today")
} else if errors.Is(err, jwt.ErrTokenMalformed) {
fmt.Println("That's not even a token")
} else if errors.Is(err, jwt.ErrTokenSignatureInvalid) {
// Invalid signature
fmt.Println("Invalid signature")
} else if errors.Is(err, jwt.ErrTokenExpired) || errors.Is(err, jwt.ErrTokenNotValidYet) {
// Token is either expired or not active yet
fmt.Println("Timing is everything")
} else {
fmt.Println("Couldn't handle this token:", err)
}
// Output: Timing is everything
}

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LieLieLiekey avatar LieLieLiekey commented on June 8, 2024

oh, i got it, thanks very much!

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