Add context param to push route

lib/tusker_push/forwarder.ex

@@ -4,8 +4,9 @@ defmodule TuskerPush.Forwarder do
 
   require Logger
 
-  @spec forward(Registration.t(), binary(), String.t(), String.t()) :: :ok | {:error, term()}
+  @spec forward(Registration.t(), binary(), String.t(), String.t(), String.t() | nil) ::
-  def forward(%Registration{push_version: 1} = registration, body, salt, key) do
+          :ok | {:error, term()}
+  def forward(%Registration{push_version: 1} = registration, body, salt, key, context) do
     payload = %{
       "aps" => %{
         "alert" => %{
@@ -20,6 +21,13 @@ defmodule TuskerPush.Forwarder do
       "v" => 1
     }
 
+    payload =
+      unless is_nil(context) do
+        Map.put(payload, "ctx", context)
+      else
+        payload
+      end
+
     Logger.debug("Sending #{inspect(payload)}")
 
     Apns.send(registration, payload)

lib/tusker_push_web/controllers/push_controller.ex

@@ -4,7 +4,7 @@ defmodule TuskerPushWeb.PushController do
 
   require Logger
 
-  def push(conn, %{"id" => id}) do
+  def push(conn, %{"id" => id} = params) do
     with {:registration, registration} when not is_nil(registration) <-
            {:registration, TuskerPush.get_registration(id)},
          :ok <- TuskerPush.check_registration_expired(registration),
@@ -12,7 +12,8 @@ defmodule TuskerPushWeb.PushController do
          {:body, {:ok, body, conn}} <- {:body, read_body(conn)},
          {:salt, salt} when not is_nil(salt) <- get_salt(conn),
          {:key, key} when not is_nil(key) <- get_key(conn),
-         {:forward, :ok} <- {:forward, Forwarder.forward(registration, body, salt, key)} do
+         context <- Map.get(params, "context"),
+         {:forward, :ok} <- {:forward, Forwarder.forward(registration, body, salt, key, context)} do
       send_resp(conn, 200, "ok")
     else
       {:registration, nil} ->