Implementing ThrottleRequest Limits in Laravel 10 with Cache

Описание: Learn how to effectively limit API requests in Laravel 10 by implementing caching for throttle requests. Keep your application performant and secure!
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Mastering Request Throttling in Laravel 10

In web development, managing how many requests users can make to your API is crucial for maintaining performance and security. In this guide, we will explore how to implement request throttling in Laravel 10 using caching techniques, ensuring your application can handle traffic efficiently while protecting your backend from abuse.

Understanding the Problem

Imagine you have an API that allows users to access certain features based on an API key. To prevent abuse, you might want to limit how many requests can be made with that key. Let's say you want to implement the following rules:

Limit requests to 100 requests every 60 minutes.

Trial requests allow for 10 requests every 5 seconds.

The challenge here is resetting the request count after the specified duration effectively. In a previous attempt, a user found that their request limit wasn't resetting as expected after the designated time interval.

Building the Solution

Below, we’ll detail the solution in a structured manner. This ensures that you can easily follow along and adapt the code to your own application.

Step 1: Set Up The Initial Conditions

Start by defining the rate limits and the timer:

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Step 2: Retrieve Cache Values

Use Laravel's cache feature to keep track of the number of requests and the last request time:

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Step 3: Check Time Conditions

Determine if the timer has expired since the last request:

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Step 4: Implement Request Counting Logic

Here, you check if the number of requests exceeds the set limit. If it does, you return a rate limit exceeded response:

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Step 5: Update the Cache

Final step involves updating the cache with the current time of the request:

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Complete Code Example

Here is what the complete implementation looks like:

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Conclusion

By properly implementing request throttling with cache in Laravel 10, you can protect your API from excessive traffic while maintaining a high-quality user experience. This simple yet powerful method allows you to manage how users interact with your application, ensuring that both performance and security are top-notch.

Feel free to adapt the above code for different timeframes or request limits as needed for your application. Happy coding!