# fcm
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Golang client library for Firebase Cloud Messaging. Implemented only [HTTP client](https://firebase.google.com/docs/cloud-messaging/http-server-ref#downstream).

More information on [Firebase Cloud Messaging](https://firebase.google.com/docs/cloud-messaging/)

### Getting Started
-------------------
To install fcm, use `go get`:

```bash
go get github.com/edganiukov/fcm
```
or `govendor`:

```bash
govendor fetch github.com/edganiukov/fcm
```
or other tool for vendoring.

### Sample Usage
----------------
Here is a simple example illustrating how to use FCM library:
```go
package main

import (
	"github.com/edganiukov/fcm"
)

func main() {
	// Create the message to be sent.
	msg := &fcm.Message{
     		Token: "sample_device_token",
      		Data: map[string]interface{}{
         		"foo": "bar",
      		}
  	}

	// Create a FCM client to send the message.
	client := fcm.NewClient("sample_api_key")

	// Send the message and receive the response without retries.
	response, err := client.Send(msg)
	if err != nil {
		/* ... */
	}
	/* ... */
}
```


#### TODO:
---------
- [ ] Retry only failed messages while multicast messaging.