Question 1

How do I mock a JSON API endpoint with Ambassador in Swift?

Accepted Answer

Use the Router to define a path and assign a JSONResponse handler. For example, router['/api/users'] = JSONResponse { return ["id": 1] }, then integrate with a server like Embassy to serve it.

Question 2

Ambassador vs Vapor for API testing in Swift?

Accepted Answer

Ambassador is lighter and focused solely on mocking for testing, with built-in helpers like DelayResponse. Vapor is a full-featured web framework better for production apps but overkill for simple mocks.

Question 3

How to add network delay to mocked responses in Ambassador?

Accepted Answer

Wrap your response with DelayResponse, which supports configurable delays. For instance, DelayResponse(JSONResponse(...), delay: .delay(5)) adds a 5-second delay to simulate latency.

Question 4

Can Ambassador handle POST requests with JSON bodies?

Accepted Answer

Yes, use JSONReader to parse incoming JSON data from the request body. The README shows an example with JSONReader.read(input) { json in ... } inside a response handler.

Question 5

What is SWSGI and why does it matter for Ambassador?

Accepted Answer

SWSGI is a Swift Web Server Gateway Interface that standardizes web app interactions. Ambassador builds on it, allowing compatibility with various servers like Embassy for greater flexibility.

Question 6

Is Ambassador suitable for production web servers?

Accepted Answer

No, Ambassador is designed primarily for testing and mocking. It lacks production-ready features such as advanced security, load balancing, and error recovery mechanisms.

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