topic subscriptions

[tugorez]

Is it possible with the current api to subscribe users to a topic?

[shufo]

@tugorez
Sorry, currently subscribe users to a topic is not supported by fcmex.

But there is api for manage relaationship maps in FCM.
https://developers.google.com/instance-id/reference/server#create_relationship_maps_for_app_instances
You can use this api for managing subscription for a topic.

I'm planning to implement this by fcmex in next version!

[shufo]

@tugorez

Topic subscription added in fcmex 0.2.0.
Now you can subscribe users to a topic.

def deps do
  [{:fcmex, "~> 0.2.0"}]
end

Usage

# create a subscription
{:ok, result} = Fcmex.Subscription.subscribe("topic_name", "fcm_token")

# get subscription information related with specified token
{:ok, result} = Fcmex.Subscription.get("fcm_token")
iex> result
 %{
   "application" => "application_name",
   "applicationVersion" => "3.6.1",
   "authorizedEntity" => "1234567890",
   "platform" => "IOS",
   "rel" => %{"topics" => %{"test_topic" => %{"addDate" => "2018-05-03"}}},
   "scope" => "*"
 }}

# create multiple subscriptions
{:ok, result} = Fcmex.Subscription.subscribe("topic_name", ["fcm_token", "fcm_token2"])

# unsubscribe a topic
{:ok, result} = Fcmex.Subscription.unsubscribe("topic_name", "fcm_token")

# batch unsubscribe from a topic
{:ok, result} = Fcmex.Subscription.unsubscribe("topic_name", ["fcm_token", "fcm_token2"])

push to the topic

{:ok, body} = Fcmex.push("/topics/topic_name",
  notification: %{
    title: "foo",
    body: "bar",
    click_action: "open_foo",
    icon: "new",
  }
)

[tugorez]

OMG it was really fast :) thank you very much for your help @shufo