Wiremock error - there are no stub mappings in this WireMock instance

Question

I have implemented a basic WireMock with a sample REST/HTTP request simulation. The server code implemented as below.

With this code, I get the following error when I issue the GET request from Postman (i.e. GET http://127.0.0.1:8089/some/thing).

No response could be served as there are no stub mappings in this WireMock instance.

What is missing in my setup/code?

import com.github.tomakehurst.wiremock.WireMockServer;
import com.github.tomakehurst.wiremock.core.WireMockConfiguration;

public class MockApp {

    private WireMockServer wireMockServer;

    public MockApp(String testSpec) {
        wireMockServer = new WireMockServer(WireMockConfiguration.options().
                port(8089).
                usingFilesUnderDirectory(testSpec).
                disableRequestJournal());
    }

    public void start() {
        wireMockServer.start();
    }

    public void stop() {
        wireMockServer.stop();
    }
}

The main function is:

public class MockMain {

    public static void main(String[] args) {

        String baseDir = System.getProperty("user.dir");
        String testResource = baseDir + "/resources/testconfig/";

        MockAMS mockAMS = new MockAMS(testResource);

        mockAMS.start();
    }
}

Under 'resources/testconfig', there is a file called mapping.json containing:

{
  "request": {
    "method": "GET",
    "url": "/some/thing"
  },
  "response": {
    "status": 200,
    "body": "Hello world!",
    "headers": {
      "Content-Type": "text/plain"
    }
  }
}

score 10 · Accepted Answer · answered Feb 18 '19 at 22:08

10

I found solution for this. So, basically we need create a folder called "mappings" (exact name) under the directory identified by "testResource" variable. So in above code example, the mapping.json file will be stored at location: "MockApp/resources/testconfig/mappings/mapping.json".

Once this, is done, it will print the following output. As can be seen in the logs, "Stub mapping size is 1". This will be printed once you add the following line in the code.

System.out.println("Stub mapping size: " + wireMockServer.getStubMappings().size());

Stub mapping size: 1
{
  "id" : "da5735a6-b6cc-45aa-8256-fb88b5670610",
  "request" : {
    "url" : "/some/thing",
    "method" : "GET"
  },
  "response" : {
    "status" : 200,
    "body" : "Hello world!",
    "headers" : {
      "Content-Type" : "text/plain"
    }
  },
  "uuid" : "da5735a6-b6cc-45aa-8256-fb88b5670610"
}

answered Feb 18 '19 at 22:08

AnilJ

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2

Thanks for posting the solution – GBP Jun 18 '19 at 10:42
You deserve a cookie for this solution! The docs leave this out! – Mansour.M Jun 10 '20 at 16:14
How can I find the `testResource` path? – Adrian Apr 21 '22 at 08:45
If you're using IntelliJ with the `Compact Middle Packages` setting turned on it can look you have the right directory structure e.g. `service.mappings` when you've actually got a single directory with a `.` in the name which will not work – Jaydo Dec 08 '22 at 04:56

score 0 · Answer 2 · answered Feb 25 '23 at 03:27

For example url for your file is: resources/__files/stubResponses/provider/mark/qu/mappings/response_200.json

You have to write in usingFilesUnderDirectory(): src/intTest/resources/__files/stubResponses/provider/mark/qu

Directory 'mappings' is very important.

Wiremock error - there are no stub mappings in this WireMock instance

2 Answers2