I need results from request promise then() after, and use again result for new request

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[Question] Get result for new request about request-promise HOT 5 CLOSED

request commented on July 28, 2024

[Question] Get result for new request

from request-promise.

Comments (5)

analog-nico commented on July 28, 2024

Hi @Vietworm , your code looks good already. I would further improve the way you use the promises:

rp(opt)
    .then(function (result) {
        let opt2 = { /* with data from result */ };
        return rp(opt2); // The `return` inserts the second request into the promise chain.
    })
    .then(function (resultOfSecondRequest) {
        // Process resultOfSecondRequest here...
    })
    .catch(function (err) {
        // Handle any error from the first, the second request, or the final processing here...
    });

Does this help?

from request-promise.

lephuhai commented on July 28, 2024

@analog-nico thanks for answer :)

I've been tried it but throw error

Unhandled rejection RequestError: Error: Argument error, options.body.

and more, after ended last request. I need results of all request before.

from request-promise.

analog-nico commented on July 28, 2024

Since it says Argument error, options.body you got something wrong with the body option. You find some details about this option here.

Since it is also saying Unhandled rejection means that you did not properly add a .catch(...) handler. My code above does this properly.

If you need both results then you may use:

rp(opt)
    .then(function (result) {
        let opt2 = { /* with data from result */ };
        return [result, rp(opt2)];
    })
    .spread(function (resultOfFirstRequest, resultOfSecondRequest) {
        // Process both results here...
    })
    .catch(function (err) {
        // Handle any error from the first, the second request, or the final processing here...
    });