How to use the enableNetConnect function from nock

nock.enableNetConnect is a function in the Nock library that allows outgoing network connections to be made for certain domains or URLs, while still intercepting all other network traffic.

How does nock.enableNetConnect work?

nock.enableNetConnect is a function in the Nock library that allows outgoing network connections to be made for certain domains or URLs, while still intercepting all other network traffic. By default, when Nock intercepts a network request, it prevents the request from actually being sent and responds with a mocked response instead. However, in some cases, you may want to allow certain requests to go through to the real network, while still intercepting others. nock.enableNetConnect provides a way to do this by whitelisting certain domains or URLs for outgoing network connections. When nock.enableNetConnect is called with a whitelist, Nock intercepts all network requests by default but allows outgoing network connections to the whitelisted domains or URLs. This can be useful in situations where you need to make real network requests to a third-party service or API, but you still want to use Nock to mock responses for other requests. When you no longer need to allow outgoing network connections, you can call nock.disableNetConnect() to restore Nock's default behavior of intercepting all network traffic. Overall, nock.enableNetConnect provides a flexible way to work with real network requests and mocked responses using the Nock library.

Ai Example

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const nock = require("nock");

// Allow outgoing network connections to example.com and api.example.com
nock.enableNetConnect(["example.com", "api.example.com"]);

// Define a mocked response for a request to example.com
nock("https://example.com")
  .get("/test")
  .reply(200, { message: "Hello from example.com!" });

// Make a real request to api.example.com
https.get("https://api.example.com/test", (res) => {
  res.on("data", (chunk) => {
    console.log(chunk.toString());
  });
});

// Make a mocked request to example.com
https.get("https://example.com/test", (res) => {
  res.on("data", (chunk) => {
    console.log(chunk.toString());
  });
});

// Disable outgoing network connections
nock.disableNetConnect();

In this example, we use nock.enableNetConnect to allow outgoing network connections to example.com and api.example.com, while still intercepting all other network traffic. We then define a mocked response for a request to example.com, but make a real request to api.example.com. Because api.example.com is whitelisted for outgoing network connections, the real request is allowed to go through, while the request to example.com is intercepted and handled by the mock response. After making the requests, we disable outgoing network connections using nock.disableNetConnect(), which restores Nock's default behavior of intercepting all network traffic.