golang gorilla/mux and rest GET Problems

Question

My Delete Handler: (I am using "github.com/gorilla/mux")

func DeletePerson(w http.ResponseWriter, r *http.Request) {
params := mux.Vars(r)
item := params["id"]
fmt.Println("Item = ", item)
...

returns Item = "2" when called by the following curl command:

curl -X DELETE http://localhost:8000/address/2

However, my TEST Code:

func TestDeletePerson(t *testing.T) {
person := &Person{
    UniqID:    "2",
    FirstName: "",
    LastName:  "",
    EmailAddr: "",
    PhoneNumb: "",
}

jsonPerson, _ := json.Marshal(person)
request, _ := http.NewRequest("DELETE", "/address/2", bytes.NewBuffer(jsonPerson))

response := httptest.NewRecorder()
DeletePerson(response, request)

Results in DeletePerson returning "" and printing "params" directly returns

map[]

Big Question - WHAT IN HELL AM I MISSING???

Is there another header parameter I have set?

Magiq · Accepted Answer · 2018-10-05 06:13:15Z

2

Because you didn't initalize router. Try this

func TestDeletePerson(t *testing.T) {
    r := mux.NewRouter()
    r.HandleFunc("/adress/{id}", DeletePerson).Methods("DELETE")
    request, _ := http.NewRequest("DELETE", "/adress/2", nil)

    response := httptest.NewRecorder()
    r.ServeHTTP(response, request)
}

Also I think you dont need to send Person object for deletion

edited Oct 5, 2018 at 6:13

answered Oct 4, 2018 at 7:27

Magiq

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5 Comments

Godfather Over a year ago

The router is initialized in tested program. I went ahead and added

Godfather Over a year ago

the router initialization into the golang test function - it didnot fix the problem. I tried to look a gorrilla mux code - but it is not a language I understand, so no help there. I seems like there is something missing that is not obvious that I must add to the request that I do not knnow about. If Cul can do it, golang sould be able to do it!!!!

Magiq Over a year ago

at your example below you forgot to use r.ServeHTTP(response, request), because handler doesn't know anything about your outside routes

Godfather Over a year ago

The problem is that your solution does not test my delete handler, "DeletePerson". Curl calls "DeletePerson" with the line "curl -X DELETE localhost:8000/address/2" and it somehow allows the mux.Vars to find apparently map["id":"2'"] where the "2" is the record id to delete. What I can not seem to do is call "DeletePerson:" in such a way the it produces the desired map parameter!! What is gorillia mux.Vars reading, some intermal header??

Magiq Over a year ago

mux.Vars read r.URL and than try to find rule of route with it. My code was not working because I was mistaken with url, now it's work fine

Godfather · Accepted Answer · 2018-10-04 23:13:58Z

0

The problem is that your solution does not test my delete handler, "DeletePerson". Curl calls "DeletePerson" with the line "curl -X DELETE localhost:8000/address/2"; and it somehow allows the mux.Vars to find apparently map["id":"2'"] where the "2" is the record id to delete. What I can not seem to do is call "DeletePerson:" in such a way it produces the desired map parameter!! What is gorillia mux.Vars reading, some internal header?? – Godfather 3 hours ago

answered Oct 4, 2018 at 23:13

Godfather

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