Rate Limiter - Go

Description

This is a simple rate limiter written in Go and is implemented as a middleware and can be used with any HTTP server.

How to config

• To config the max number of requests per second for IP, change the value of RATE_LIMITER_MAX_REQUESTS_PER_SECOND_FOR_IP in .env file.

• To config the block time for IP, change the value of RATE_LIMITER_BLOCK_TIME_FOR_IP in .env file (this value is in seconds).

• To config the block time for token, change the value of RATE_LIMITER_BLOCK_TIME_FOR_TOKEN in .env file (this value is in seconds).

• To config the max number of requests per second for tokens, change the value of RATE_LIMITER_TOKENS in .env file. The format is: token1:rate1,token2:rate2,.... For example: token1:10,token2:20.

• To config the persistence mechanism, change the value of PERSISTENCE_MECHANISM in .env file. The value can be redis or mysql.

• OBS: when you change the values in .env you need to restart the server.

How to run

• Run docker-compose up -d to start the server.

How to test

• You can use the test api file in ./tests/api.http to test the server (you need have installed the REST Client ( humao.rest-client) on VSCode to use this file).

How to run the load test with fortio

• Run docker-compose up;
• Access http://localhost:8079/fortio;
• In URL to test field, put http://app:8080/test;
• Adjusts the parameters as you want and click in Start button.
• See the results on graph or in the files.