Create RequestMock with dynamic url (params) Testcafe - testing

Question

I'm trying to test login page of my react app using testcafe. After success login app should fetch user from API (on localhost:5000) and display name & surname on the home page.
Fetching user in my app:
const raw = await axios.get(`http://localhost:5000/api/user/${uid}`);
tests/login.test.ts
// Used to mock POST /login-user
const loginMock = RequestMock()
.onRequestTo("http://localhost:5000/api/login-user")
.respond(
{
success: true,
id: "123456789101",
},
200,
{ "Access-Control-Allow-Origin": "*" }
);
// Used to mock GET /user/:id
const getUserMock = RequestMock()
.onRequestTo("http://localhost:5000/api/user/:id")
.respond(
{
success: true,
user: {
name: "John",
surname: "McBain",
},
},
200,
{ "Access-Control-Allow-Origin": "*" }
);
test.requestHooks([loginMock, getUserMock])("should login user", async t => {
/* login user testing*/
...
// Check GET /user
const UserInfo = await Selector(".auth span");
await browser
.expect(await UserInfo.textContent)
.eql("Account: John McBain"); // Failed here "Account undefined undefined" != "Account John McBain"
});
POST /login-user request is working fine, but GET /user/:id request is failed
I think the problem is that I'm incorrectly write dynamic url (/:id/). How can I do it correctly?
My express server function for GET /user/:id here:
app.get("/api/user/:id", (req, res) => {
const userId = req.params.id;
...
});

Answer 1

In the case of dynamic URLs you should use RegExp instead of string in your RequestMock.onRequestTo method. The result RegExp relates to your id possible symbols, for example:
const mock = RequestMock()
.onRequestTo(/\/id=[0-9]+$/)
.respond(/*...*/);
Result:
[respond is replaced by mock] https://example.com/id=13234
[respond is not replaced by mock] https://example.com/id=23443-wrong-part
[respond is not replaced by mock] https://example.com/id=wrong-non-number-id