http-mock 
Serve JSON mocks conveniently.
Usage
// Start server on port 3333.
const httpMock = require('@zemke/http-mock')(3333);
// When http://localhost:3333/api/tournament is requested
// respond with contents of the JSON file under the given path.
httpMock.add('/api/tournament', __dirname + '/mocks/api_tournament.json');Examples
httpMock.add("/api/heythere/1", {hello: "world"});
httpMock.add("/api/blah/1", __dirname + '/1.json');
httpMock.add(/\/api\/else\/(.+)/, __dirname + '/$1.json');
httpMock.add("/api/something", (req, payload) => payload);API
add(urlMatcher: string | RegExp, mock: string | object | Function<http.IncomingMessage, object>)
Add a new mock for the given URL pattern. Performs a replace, if the URL pattern already exists.
urlMatcher — May be a string to match the exact path or a regular expression.
mock — A path to a JSON file or inline JSON object or a handler function with params http.IncomingMessage and the POST payload. If urlMatcher is regular expression, you can do replace operations here (see example above).
clean()
Remove all mocks.
close(Function<>)
Close the server with an optional callback method when the closing errors.
Examples
httpMock.add(/\/api\/procedures\/(.+)/, __dirname + '/mocks/$1.json');