Context

Mock middleware from swagger-express allows us to have a fully usable mocked API with zero logic code. It takes the swagger spec as a base and applies some intelligence, in order to automatically mock the implementation of controllers and datastore. The result is a cool express application responding to all HTTP requests as well as a decent demo data persistence store. The mock feature gets handy for prototyping, demo, and TDD implementation.

swagger-express-mock-not-found-conflict

This package provides the following two utils middlewares to work together with swagger-express Mock.

mockResourceNotFound

mockResourceNotFound: By default the Mock middleware consider POST and PATCH methods as the same operation. However by definition PATCH method can return a not found when a client attempted to apply a patch document to a non- existent resource but the patch document chosen cannot be applied to a non-existent resource. Basically mockResourceNotFound middleware will response with 404 if the resource to be updated or deleted does not exist.

mockPostConflict

If the API must return a 409 error for POST requests that lead to duplicated elements. The default behavior of the mock middleware considering PATCH and POST as the same operation and will not work. Using the mockPostConflict we may provide a property as a primary or unique key for the detection of duplicate items in one collection.

install

npm i swagger-express-mock-not-found-conflict

Basic Usage

...
const { mockResourceNotFound, mockPostConflict } = require('swagger-express-mock-not-found-conflict')
...
app.use(
  middleware.metadata(),
  middleware.CORS(),
  middleware.parseRequest(),
  middleware.validateRequest(),
  // notFound for PATCH and DELETE
  mockResourceNotFound(mockMemoryDB),
  // id is the primary/unique key that lead to conflict 409
  mockPostConflict(mockMemoryDB, 'id'),
  middleware.mock(mockMemoryDB)
)
...

Example

For a fully functional example please clone: the repo from here: https://github.com/osvaldo2627/swagger-express-mock-not-found-conflict

Running the example

After clone

cd swagger-express-mock-not-found-conflict
npm i
npm start

Note: The example launch a swagger-ui for testing: localhost:3000

Test

npm run test