Discussion on: How to Return multiple functions and values while working with REST APIs (Part 1)

[Leandro Andrade]

Thanks for this article. Do you have any particular reason for using "q" library instead a native modules like Promise? I question this because I had the same result using Promise.all instead is using "q" library. Other insigth is change Promise.all to Promise.allSettled that allow us to handle errors.

Below the code:

const axios = require("axios");
const app = require("express")();

app.get("/chuck-norris", async (req, res) => {
    try {
        const promises = ["https://api.chucknorris.io/jokes/random", "https://api.chucknorris.io/jokes/categories"]
            .map(url => axios.get(url));
        const result = await Promise.all(promises);

        const [jokeResponse, categoryResponse] = result;
        const { data: joke } = jokeResponse;
        const { data: category } = categoryResponse;

        const jokeData = joke.value;
        if (!jokeData) {
            res.send({ message: "Value of joke is not available" });
        }

        if (!category) {
            res.send({ message: "Category is not available" });
        }

        const random = Math.floor(Math.random() * 16);
        const response = {
            status: "success",
            message: "Data fetched",
            data: {
                joke: jokeData,
                categories: category[random]
            }
        };

        return res.json(response);
    } catch (err) {
        return res.json({ message: err });
    }
});

const listener = app.listen(8088, () => {
    console.log("Your app is listening on port " + listener.address().port);
});

[Olufemi obafunmiso]

Hi Leandro,

This is part 1.

I did mentioned that in part 2, we'll not be using the q library on line 6 of this article.

I will Publish Part 2 very soon.

I explained there how to achieve this with Javascript native functions.

Thank you for taking out time to read this article.