# echo-ratelimit

Small in-memory rate-limiting middleware for [Echo](https://github.com/labstack/echo), keyed by client IP.

## Install

```bash
go get git.carlpearson.net/cwpearson/echo-ratelimit@latest
```

## Usage

```go
package main

import (
	"net/http"
	"time"

	"github.com/labstack/echo/v4"

	ratelimit "git.carlpearson.net/cwpearson/echo-ratelimit"
)

func main() {
	e := echo.New()
	e.Use(ratelimit.Middleware(60, time.Minute))

	e.GET("/", func(c echo.Context) error {
		return c.String(http.StatusOK, "ok")
	})

	e.Logger.Fatal(e.Start(":8080"))
}
```

## Custom Configuration

```go
e.Use(ratelimit.WithConfig(ratelimit.Config{
	Limit:      10,
	Window:     time.Minute,
}))
```

Rate-limit headers are emitted by default.