Docker Install MockServer to mock response

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What is MockServer

Official documentation: https://www.mock-server.com/

For any system you integrate with via HTTP or HTTPS MockServer can be used as:

  • a mock configured to return specific responses for different requests
  • a proxy recording and optionally modifying requests and responses
  • both a proxy for some requests and a mock for other requests at the same time

When MockServer receives a request it matches the request against active expectations that have been configured. Then, if no matches are found, it proxies the request if appropriate; otherwise a 404 is returned.

return a "mock" response when a request matches an expectation

Use Docker Compose to start

  1. create a new folder then define docker-compose.yml file

        services:
     mockServer:
        image: mockserver/mockserver:latest
        container_name: mockServer
        ports:
          - 1080:1080
        environment:
          MOCKSERVER_WATCH_INITIALIZATION_JSON: true
          MOCKSERVER_LOG_LEVEL: DEBUG
          MOCKSERVER_PROPERTY_FILE: /config/mockserver.properties
          MOCKSERVER_INITIALIZATION_JSON_PATH: /config/initializerJson.json
          TZ: Asia/Shanghai
        volumes:
          - ./config:/config

  2. create the initializerJson.json file

    [
    {
      "httpRequest" : {
        "method" : "GET",
        "path" : "/api/v1/hello"
    },
      "httpResponse" : {
        "body" : "Hello World !",
        "statusCode": 200
      }
    }
]

  3. docker compose start

  4. test the result

  5. MockServer UI
    Browser
    The UI can be opened in any browser using the URL
    http(s)://:/mockserver/dashboard
    For example if MockServer is running on localhost on port 1080 use
    http://localhost:1080/mockserver/dashboard