---
title: SetCookie
summary: SetCookie adds a Set-Cookie header to the provided ResponseWriter's headers. The provided cookie must have a valid Name. Invalid cookies may be silently dropped.
url: https://www.fastly.com/documentation/reference/compute/sdks/go/compute-sdk-go/fsthttp/fn.SetCookie/
---

**Kind:** Function  
**Module:** [fsthttp](https://www.fastly.com/documentation/reference/compute/sdks/go/compute-sdk-go/fsthttp/)  
**Package:** compute-sdk-go v1.11.0  
**Source:** https://github.com/fastly/compute-sdk-go/blob/d6bf71b04516ed72d6018cab6fff701a865f86e5/fsthttp/cookie.go#L175

```go
func SetCookie(h Header, cookie *Cookie)
```

SetCookie adds a Set-Cookie header to the provided ResponseWriter's headers.
The provided cookie must have a valid Name. Invalid cookies may be
silently dropped.

**Parameters**

- `h`: `Header`
- `cookie`: `*Cookie`