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jszwedko avatar jszwedko commented on June 1, 2024

Hi @dfang,

You can provide the Recovery middleware with a PanicFormatter to determine how the response is written.

You can see the test for an example of this.

Hope this helps!

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dfang avatar dfang commented on June 1, 2024

@jszwedko oh i see, you mean write a formatter implements PanicFormatter (eg. JsonFormatter) ...

thanks !

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dfang avatar dfang commented on June 1, 2024

@jszwedko what i want is recover the err, and write the err msg to response, i can't recover in PanicFormatter, and there is no ResponseWriter in PanicHandler .....

func Recovery(w http.ResponseWriter, req *http.Request, next http.HandlerFunc) {
	defer func() {
		err := recover()
		if err != nil {
			switch v := err.(type) {
			case *MissParameterError:
				util.RespondWithError(w, http.StatusBadRequest, 400, v.Error.Error())
			case *ParseError:
				util.RespondWithError(w, http.StatusBadRequest, 400, v.Error.Error())
			case *RecordNotFound:
				util.RespondWithError(w, http.StatusBadRequest, 400, v.Error.Error())
			case string:
				util.RespondWithError(w, http.StatusBadRequest, 400, v)
			case error:
				util.RespondWithError(w, http.StatusBadRequest, 400, v.Error())
			default:
				util.RespondWithError(w, http.StatusBadRequest, 400, "Internal Error")
			}
			return
		}
	}()

	next(w, req)
}

so custom middleware is better for my situation, but thanks all the same !

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jszwedko avatar jszwedko commented on June 1, 2024

Aha, I see. You are correct, I think a custom middleware is better for this situation. The general purpose of the Recovery middleware is simply to log the error.

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