Merge pull request timdorr#40 from josephpage/add_token_expiry_information

Add token expiry status

Author: timdorr

lib/tesla_api/client.rb

@@ -17,6 +17,24 @@ def token=(token)
       self.class.headers "Authorization" => "Bearer #{token}"
     end
 
+    def expires_in=(seconds)
+      @expires_in = seconds.to_f
+    end
+
+    def created_at=(timestamp)
+      @created_at = Time.at(timestamp.to_f).to_datetime
+    end
+
+    def expired_at
+      return nil unless defined?(@created_at)
+      (@created_at.to_time + @expires_in.to_f).to_datetime
+    end
+
+    def expired?
+      return true unless defined?(@created_at)
+      expired_at <= DateTime.now
+    end
+
     def login!(password)
       response = self.class.post(
           "https://owner-api.teslamotors.com/oauth/token",
@@ -28,8 +46,10 @@ def login!(password)
               "password" => password
           }
       )
-
-      self.token = response["access_token"]
+      
+      self.expires_in = response["expires_in"]
+      self.created_at = response["created_at"]
+      self.token      = response["access_token"]
     end
 
     def vehicles

spec/cassettes/client-login.yml

@@ -3,6 +3,16 @@
 RSpec.describe TeslaApi::Client do
   subject(:tesla_api) { TeslaApi::Client.new(ENV["TESLA_EMAIL"]) }
 
+  describe "#new client" do
+    it "has no expiry date" do
+      expect(tesla_api.expired_at).to eq(nil)
+    end
+
+    it "has a expiry status set to true" do
+      expect(tesla_api.expired?).to eq(true)
+    end
+  end
+
   describe "#token=" do
     it "sets a Bearer token" do
       tesla_api.token = Faker::Lorem.characters(32)
@@ -18,15 +28,32 @@
       expect(a_request(:post, "https://#{URI.parse(tesla_api.class.base_uri).host}/oauth/token")).to have_been_made.once
     end
 
-    it "obtains a Bearer token" do
+    it "set a expiry date" do
       tesla_api.login!(ENV["TESLA_PASS"])
-      expect(tesla_api.token).to match(/[a-z0-9]{32}/)
+      expect(tesla_api.expired_at).to eq(Time.at(1475777133 + 7776000).to_datetime)
+    end
+
+    it "expose expiry status" do
+      tesla_api.login!(ENV["TESLA_PASS"])
+      tesla_api.created_at = (Time.now - 1).to_i
+      expect(tesla_api.expired?).to eq(false)
+    end
+
+    it "is expired when has a 90+ days old date" do
+      tesla_api.login!(ENV["TESLA_PASS"])
+      tesla_api.created_at = (Time.now - 7776000 - 1).to_i
+      expect(tesla_api.expired?).to eq(true)
     end
 
     it "sets a Bearer token header" do
       tesla_api.login!(ENV["TESLA_PASS"])
       expect(tesla_api.class.headers).to include({"Authorization" => /Bearer [a-z0-9]{32}/})
     end
+
+    it "obtains a Bearer token" do
+      tesla_api.login!(ENV["TESLA_PASS"])
+      expect(tesla_api.token).to match(/[a-z0-9]{32}/)
+    end
   end
 
   describe "#vehicles", vcr: {cassette_name: "client-vehicles"} do