Regarding the Tyk error message

Product FAQ
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1

I am using the go plugin with the Tyk gateway.
When i am sending the error response from go plugin, Tyk is also sending the error plugin message.

Sample code:

func writeError(rw http.ResponseWriter, statusCode int, message string) {
    rw.Header().Set("Content-Type", "application/json")
    rw.WriteHeader(statusCode)
    errorObject := map[string]string{"error": message}
    json.NewEncoder(rw).Encode(errorObject)
}

func OAuth2Introspect(rw http.ResponseWriter, r *http.Request) {
    // ... your code

    if err != nil {
        log.Printf("Error: %+v", err)
        writeError(rw, http.StatusInternalServerError, "Internal Server Error")
        return
    }

    // ... your code
}
2

Hello @AJAY_K_R and welcome to the community :partying_face:

Could you be referring to [TT-9231] Prevent double error in GoPlugin calls by furkansenharputlu · Pull Request #5562 · TykTechnologies/tyk · GitHub

If yes, then this was fixed in v5.0.7 and v5.2.2. If not then could you explain further?

3

Thanks @Olu , I upgraded & tried its working. But how can we customise the Tyk error message using Go plugin before sending it to client?
Any idea on the response middleware using Go plugin?

4

Glad to hear that it’s working as expected

You can use the ResponseWriter as shown here custom-plugin-examples/plugins/go-postauth-opa_integration/authorize_opa.go at master · TykTechnologies/custom-plugin-examples · GitHub

Have you had a look at our documentation on the topic

5

Yeah this looks great → Golang plugins, Will try to implement this. I don’t see any tyk tracing objects such as tyk request processing time and all in it. Can you help me with this.

I am looking for the processing time of a request when tyk api is called.

6

I cracked it by adding the startTime as headers in the request middleware & used in response middleware, If you have any other suggestions please let me know.

7

I can’t recall, but maybe timers.<prefix>.SystemAPICall.success from the gateway instrumentation is what you are looking for.

If not, then we encourage you to try Otel. You can also check out Otel with plugins