Merge pull request #118 from mercari/replace-gcm-fcm-in-doc

doc: replaced GCM to FCM.

gcm/client.go

@@ -18,12 +18,12 @@ const (
 	// maxRegistrationIDs are max number of registration IDs in one message.
 	maxRegistrationIDs = 1000
 
-	// maxTimeToLive is max time GCM storage can store messages when the device is offline
+	// maxTimeToLive is max time FCM storage can store messages when the device is offline
 	maxTimeToLive = 2419200 // 4 weeks
 )
 
 // Client abstracts the interaction between the application server and the
-// GCM server. The developer must obtain an API key from the Google APIs
+// FCM server. The developer must obtain an API key from the Google APIs
 // Console page and pass it to the Client so that it can perform authorized
 // requests on the application server's behalf. To send a message to one or
 // more devices use the Client's Send methods.
@@ -39,7 +39,7 @@ type Client struct {
 // If you need our own configuration overwrite it.
 func NewClient(urlString, apiKey string) (*Client, error) {
 	if len(urlString) == 0 {
-		return nil, fmt.Errorf("missing GCM/FCM endpoint url")
+		return nil, fmt.Errorf("missing FCM endpoint url")
 	}
 
 	if len(apiKey) == 0 {
@@ -57,7 +57,7 @@ func NewClient(urlString, apiKey string) (*Client, error) {
 	}, nil
 }
 
-// Send sends a message to the GCM server without retrying in case of
+// Send sends a message to the FCM server without retrying in case of
 // service unavailability. A non-nil error is returned if a non-recoverable
 // error occurs (i.e. if the response status is not "200 OK").
 func (c *Client) Send(msg *Message) (*Response, error) {

gcm/client_test.go

@@ -30,7 +30,7 @@ func startTestServer(t *testing.T, resp *testResponse) *httptest.Server {
 
 func TestNewClient(t *testing.T) {
 	if _, err := NewClient("", ""); err == nil {
-		t.Fatalf("expect to be faied (missing GCM/FCM endpoint)")
+		t.Fatalf("expect to be faied (missing FCM endpoint)")
 	}
 
 	if _, err := NewClient(FCMSendEndpoint, ""); err == nil {

gcm/message.go

@@ -5,9 +5,9 @@ import (
 )
 
 // Message is used by the application server to send a message to
-// the GCM server. See the documentation for GCM Architectural
+// the FCM server. See the documentation for FCM Architectural
 // Overview for more information:
-// http://developer.android.com/google/gcm/gcm.html#send-msg
+// https://firebase.google.com/docs/cloud-messaging/http-server-ref
 type Message struct {
 	RegistrationIDs       []string               `json:"registration_ids"`
 	CollapseKey           string                 `json:"collapse_key,omitempty"`

gcm/response.go

@@ -1,9 +1,9 @@
 package gcm
 
-// Response represents the GCM server's response to the application
-// server's sent message. See the documentation for GCM Architectural
+// Response represents the FCM server's response to the application
+// server's sent message. See the documentation for FCM Architectural
 // Overview for more information:
-// http://developer.android.com/google/gcm/gcm.html#send-msg
+// https://firebase.google.com/docs/cloud-messaging/http-server-ref
 type Response struct {
 	MulticastID  int64    `json:"multicast_id"`
 	CanonicalIDs int      `json:"canonical_ids"`