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Dênis Mendes
Dênis Mendes

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How to test API with Golang.

#test #api #integration

Hi there!

I needed to test a few requests I do in my API and then I will show to you how I did that.

First things first, you need to create an application and a file with routes:

main.go

package main import ( "net/http" "devto.com/v1/src/router" ) func main() { /// Start server with Routes http.ListenAndServe(":3333", router.Routes()) }
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router\router.go

package router import ( "net/http" "github.com/go-chi/chi" "github.com/go-chi/chi/middleware" ) func Routes() *chi.Mux { r := chi.NewRouter() r.Use(middleware.Logger) r.Use(middleware.Recoverer) r.Get("/info", func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) w.Write([]byte(":)")) }) return r }
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Then we're gonna make our test for that request called info.

tests\integration\info_test.go

package integration import ( "net/http" "net/http/httptest" "testing" "devto.com/v1/src/router" ) func TestInfoRequest(t *testing.T) { // Set up a new request. req, err := http.NewRequest("GET", "/info", nil) if err != nil { t.Fatal(err) } newRecorder := httptest.NewRecorder() router.Routes().ServeHTTP(newRecorder, req) statusCode := 200 if newRecorder.Result().StatusCode != statusCode { t.Errorf("TestInfoRequest() test returned an unexpected result: got %v want %v", newRecorder.Result().StatusCode, statusCode) } }
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That's all! I hope it helps you to get your integration tests working.

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