This is a simple library that allows you to rotate your API credentials. Let's say there is a free API key limit 5 request per second. And to avoid this limitation is to create multiple API keys. and use them in rotation.

install

go get github.com/FPNL/RollKeys

usage

package main

import (
    "fmt"
	rollKeys "github.com/FPNL/RollKeys"
    "time"
)

func main() {
	// means each key could make 5 request per second
	keys, err := rollKeys.NewRotationalSlice([]string{"key1", "key2"}, 5)

	// if all the keys are fully loaded, it will wait.
	// most expect wait duration is (givenRequestTimes / (len(givenAPIKeys) * givenRate)) - 1
    // if there is 100 request at same time, in this example is 100 / (2 * 5) - 1 = 9 seconds
	key, err := keys.Get(context.TODO()) 
	
	// Do what you want to key
}