Gock: cannot match any request json

[Joseph Moukarzel]

Hey

Here's my code:

    defer gock.Off()
    gock.New("https://foo.com").
    Post("/bar").
    MatchHeader("Authorization", "12345").
     MatchHeader("Accept", "^"+regexp.QuoteMeta("application/vnd.api+json")+"$").
     MatchHeader("Content-Type", "^"+regexp.QuoteMeta("application/vnd.api+json")+"$").
   // MatchType("json").
   // JSON(map[string]string{"foo": "bar"}).
     Reply(201).
     JSON(map[string]string{"bar": "foo"})

      var reqBody io.Reader
      body:=`{"foo": "bar"}`
      fmt.Println(body)
      bodied := json.RawMessage(body)
      jsonDocument, err1 = json.Marshal(bodied)
      reqBody = bytes.NewReader(jsonDocument)
      statusCode, resBody, err = request("https://foo.com/bar", "POST", "12345", reqBody)

And the request function:

func request(url string, method string, authorization string, body io.Reader) (int, interface{}, error)
{
	req, _ := http.NewRequest(method, url, body)
	req.Header.Add("Content-Type", applicationType)
	req.Header.Add("Authorization","Bearer "+authorization)
	req.Header.Add("Accept", applicationType)
	client := &http.Client{}
	res, err := client.Do(req)
....
}

Works fine without the MatchType("json") and JSON(json.RawMessage({"foo": "bar"})). When I comment either of them, the request fails and prints

gock: cannot match any request

I've tried changing many things. Including: removing the RawMessage transformation, changing the body definition e,g. body:=map[string]string{"foo": "bar"}.

Not sure what I am doing wrong, can you recommend something?

Edit: Using the request function in an actual deployment does work with {"foo": "bar"}, but not in Gock.

[Brian Ploetz]

I just ran into this same problem.

[gspurthi]

I have the same problem upon matching request body.

[Heath Stewart]

With version v1.1.2, the following worked for me despite the nested JSON object listing fields in a different order (based on gock.Observe(gock.DumpRequest):

gock.New("https://api.github.com").
	Post("/graphql").
	MatchHeader("Content-Type", "application/json; charset=utf-8").
	JSON(map[string]interface{}{
		"query": mutationUpdateProjectV2,
		"variables": map[string]interface{}{
			"id":          "PN_2",
			"title":       "title",
			"description": "description",
			"body":        "body",
			"public":      true,
		},
	}).
	Reply(200).
	JSON(`{
		"data": {
			"updateProjectV2": {
				"projectV2": {
					"url": "https://github.com/users/heaths/projects/2"
				}
			}
		}
	}`)

[sivarajendranaidu]

Hi I am also having issue with nested JSON object.

I tried the same snippet of the code provided above but I am unable to mock the POST call with body containing nested JSON.

Please find my code snippet

source.txt

My test output is as follows:
go test
"{\n\t\t"query": "mutationUpdateProjectV2",\n\t\t"variables":{\n\t\t\t"id": "PN_2",\n\t\t\t"title": "title",\n\t\t\t"description": "description",\n\t\t\t"body": "body",\n\t\t\t"public": true,\n\t\t},"
POST /graphql HTTP/1.1
Host: api.github.com
User-Agent: Go-http-client/1.1
Content-Length: 251
Content-Type: application/json
Accept-Encoding: gzip

"{\n\t\t"query": "mutationUpdateProjectV2",\n\t\t"variables":{\n\t\t\t"id": "PN_2",\n\t\t\t"title": "title",\n\t\t\t"description": "description",\n\t\t\t"body": "body",\n\t\t\t"public": true,\n\t\t},"

Matches: false

2023/03/28 18:16:42 An Error Occured Post "https://api.github.com/graphql": gock: cannot match any request
exit status 1
FAIL ut 0.907s

Please provide your inputs If I am missing any?