Testing functions that make external API calls presents challenges: tests become slow, unreliable, and dependent on network conditions. The solution is to use a mock HTTP server that emulates the real API's behavior locally. Using the httpmock crate in Rust, you can create a test server that responds with predefined JSON data,
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What could be wrong?Why don’t we want to make API calls in tests?A fake server using httpmockKicking the tyresConfiguring routes on the mock serverMocking the real APIInjecting the base URLSort: