Panic error: interface conversion jwt.claims is jwt.mapclaims

[FelixMH]

I am getting the following error when using my api in Postman, the error is that it tells me that the conversion of jwt.claims is jwt.mapClaims, the problem is that I do not know how to make the change … my code is … .

if token.Valid {
ctx: = context.WithValue (r.Context (), "user", token.Claims. (* models.Claim) .User)
next (w, r.WithContext (ctx))
}

the error is probably in token.Claims. (* models.Claim) .User), but I do not know how to convert it to mapClaims.

someone who can give me some help? How to implement it?

Greetings.

[johandalabacka (Johan Dahl)]

Hi. Could you post the panic text?

[FelixMH]

The panic text it’s only that, I use jwt-go, negroni, and one package that I create by myself. So, I can send the panic text, is not a problem, I will let you here. Wait a moment.

[FelixMH]

[johandalabacka (Johan Dahl)]

It expects a pointer to jwt.mapClaims. that is *jwt.mapClaims but you gives it just a jwt.mapClaims. read up on pointers here: https://www.golang-book.com/books/intro/8

[FelixMH]

I understand that, but I don’t know how must I pass the claims with *jwt.MapClaims as Pointer, I already use the *jwt.mapClaims but is not working. Maybe I am using in bad way.

Could you help me?

[FelixMH]

I’ve solve that panic error, but now I have another one.

When I try to do something with my api /api/comments/

I getting bad request , the before code to do that is:

if token.Valid {
ctx := context.WithValue(r.Context(), “user”, token.Claims.(*models.Claim).User)
next(w, r.WithContext(ctx))
} else {
m.Code = http.StatusUnauthorized
m.Message = “Su token no es válido”
commons.DisplayMessage(w, m)
}

and the new, where I solve the error it’s:

if claims , ok := token.Claims.(*models.Claim); ok && token.Valid {
ctx := context.WithValue(r.Context(), “user”, *claims)
next(w,r.WithContext(ctx))
} else {
m.Code = http.StatusBadRequest
m.Message = “Su token no es válido”
commons.DisplayMessage(w,m)
}

but I don’t get the response and that is because the token it’s not valide, but I use the right token.