Скачать или смотреть How to Pass Additional Parameters When Using axios.all for Multiple API Requests

Learn how to efficiently use `axios.all` to make API requests while passing multiple parameters, including dynamic properties like `brand`.
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This video is based on the question https://stackoverflow.com/q/71980827/ asked by the user 'Devp' ( https://stackoverflow.com/u/8285461/ ) and on the answer https://stackoverflow.com/a/71981034/ provided by the user 'Tanay' ( https://stackoverflow.com/u/15354370/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the Problem: Making Multiple API Requests with Axios

When working with multiple APIs, there comes a time when you need to fetch data from several URLs simultaneously. If you're using Axios, a popular HTTP client for JavaScript, the axios.all method can help you achieve this efficiently. However, sometimes your API endpoints might require additional parameters, such as a brand associated with each request. This raises the question: How can I pass these extra parameters while mapping through the URLs?

The Scenario

Consider this array of objects where each object contains a brand and a corresponding url:

[[See Video to Reveal this Text or Code Snippet]]

You want to make a GET request to each URL and simultaneously capture the brand for use after the requests are complete. This is where axios.all comes into play, but passing additional parameters may seem a little tricky at first.

The Solution: Using Promise.all to Handle Multiple Requests

Instead of using axios.all, which can be a bit restrictive when trying to return additional data alongside your Axios responses, you can use Promise.all, a more flexible approach. Here’s how you can achieve this step-by-step.

Step 1: Mapping through the Data Array

Use map on your array to create an array of promise-returning functions. Each function will handle the GET request and return both the response data and the brand name.

Example Code

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Step 2: Explanation of the Code

Promise.all: This function takes an array of promises (in this case, your Axios GET requests) and resolves when all of them are fulfilled or rejects if any promise fails.

Mapping through each item: The map function creates a promise for each URL. Each promise awaits the Axios GET request, ensuring that response data is retrieved before proceeding.

Returning the data: You construct an object that holds both response.data (the data from the call) and item.brand (the brand being sent with the request).

Handling responses: Once all promises are resolved, the .then() method processes the results, allowing you to use or display the data as needed.

Error handling: A catch statement is added to handle any potential errors in the requests.

Conclusion

By using Promise.all in combination with map, you can effectively handle multiple Axios requests while passing along any necessary parameters, such as a brand name. This method not only simplifies async operations but also ensures you have all the required data at your fingertips when responding to requests.

With this approach, you can confidently build applications that require multiple synchronous requests without losing critical context about each service or API you are interacting with.