pm.sendRequest is not working in promise.then() chain

[Massukio]

Describe the bug

I wrote a function to wait for my async API to be done first and execute related tests later.

something like below:

wait_for_task_to_be_done(jsonData.taskId).then(function(value) {

    pm.test("Test A", function () {
        pm.expect(data).to.eql("expectation"));
    });

    pm.sendRequest( ... ,function (err, res) {
        pm.test("Test B", function () {
            pm.expect(data).to.eql("expectation"));
        });
    });

    pm.test("Test C", function () {
        pm.expect(data).to.eql("expectation"));
    });
});

test result ==>

[PASS]  Test A
[PASS]  Test C

"Test B" is gone somehow.

Then I checked the console output, the request has never been sent, it seems like the pm.sendRequest is not working in promise.then(). Could anyone help? Any workaround?

Expected behavior

pm.sendRequest shall be working fine in promise.then()

App information (please complete the following information):

• App Type = Native App
• Postman Version = v6.5.3
• OS: Windows 10

Additional Tests

Tested with promise.then chain, it's also not working.

wait_for_task_to_be_done(jsonData.taskId).then(function(value) {
    pm.test("Test A", function () {
        pm.expect(data).to.eql("expectation"));
    });
}).then(function(value) {
    pm.sendRequest( ... ,function (err, res) {
        pm.test("Test B", function () {
            pm.expect(data).to.eql("expectation"));
        });
    });
)}.then(function(value) {
    pm.test("Test C", function () {
        pm.expect(data).to.eql("expectation"));
    });
})

test result ==>

[PASS]  Test A
[PASS]  Test C

[felipeplets]

@timmy8526 I had the same issue and solved it by leaving an open timeout while processing the async code. Here is my solution.

[pomeh]

For information, this bug looks similar to issue #4131 and https://community.getpostman.com/t/using-native-javascript-promises-in-postman/636/5. If confirmed, this is a known issue.

@felipeplets do you know why your workaround works ? This clearTimeout(interval) thing drives me crazy, I don't get why this would make the code work ! I would like to use this trick while using await, so there is no .then method... and I'm stucked !

[felipeplets]

@pomeh I don't know exactly why it works, but I imagine that the timeout make the session stay open while Promise and Async/Await is not doing that.

[shamasis]

Note for future reference: @codenirvana we need to migrate to async_hooks from our current timerz implementation in postman-sandbox. That should open support for all language async features. Currently only setTimeout and setInterval are supported.

[Yilin-Ma]

Any update in 2021?

[Yilin-Ma]

Still having this issue in newman 5.2.1