Google OAuth 2.0 From ServiceFile

.gitignore

@@ -0,0 +1,15 @@
+
+.eunit
+deps
+*.o
+*.beam
+*.plt
+erl_crash.dump
+ebin
+rel/example_project
+.concrete/DEV_MODE
+.rebar
+.erlang.mk
+_rel
+fcm.d
+relx

Makefile

@@ -1,5 +1,17 @@
-PROJECT = oauth2_s2s
-DEPS = jsx
-include erlang.mk
+PROJECT = google_oauth
+PROJECT_VERSION = $(shell head -n 1 relx.config | awk '{split($$0, a, "\""); print a[2]}')
+
+# app:: rebar.config
+LOCAL_DEPS = inets crypto public_key ssl
+
+DEPS = lager jsx base64url
 
+dep_lager = git https://github.com/erlang-lager/lager 3.8.0
+dep_jsx = git https://github.com/talentdeficit/jsx.git v2.10.0
+dep_base64url = git https://github.com/dvv/base64url.git 1.0.1
+
+include erlang.mk
 
+ERLC_COMPILE_OPTS= +'{parse_transform, lager_transform}'
+ERLC_OPTS += $(ERLC_COMPILE_OPTS)
+TEST_ERLC_OPTS += $(ERLC_COMPILE_OPTS)

README.md

@@ -1,33 +1,53 @@
-#### Erlang Google OAuth 2.0 API client for Server to Server Applications. This application will get a new access token for every one hour.
-
-
-#####How to get the RSA Private Key file before running the application
-- Reference https://developers.google.com/identity/protocols/OAuth2ServiceAccount
-- After downloading the privatekey.p12 file enter the following 2 commands to convert in to RSA Private Key
-
-        openssl pkcs12 -in privatekey.p12 -out priv/temp/key-enc.pem -nodes
-        openssl rsa -in priv/temp/key-enc.pem -out priv/temp/RSA_Key.pem
-- Give the path of this RSA_KEY.pem in the RSA_KEY_PATH Macro in "oauth2_s2s.erl" module.
-- Enter the ISS in the config file and feel free to change other values before running
-
-
-##### how to run the application
-- git clone [email protected]:RajuC/Google_OAuth_2.0.git
-- cd Google_OAuth_2.0/
-- make
-- erl -pa ebin/ deps/*/ebin -s oauth2_s2s -config config/sys.config
-
--  1> oauth2_s2s:get_access_token().
-
-        [{<<"access_token">>,
-        <<"ya29.LwL5_tv6bmaZyqzCm8-LiEA27dUi5UNps5ULvVgOdD-qXvZzxKCvQicModZyqn0r6g">>},
-        {<<"token_type">>,<<"Bearer">>},
-        {<<"expires_in">>,3600}]
-
-
--  2> oauth2_s2s:get_access_token(<<"https://www.googleapis.com/auth/devstorage.full_control">>).
-
-        [{<<"access_token">>,
-        <<"ya29.LwJyfO4raybzP5bzDyqIf6lPHjc8rMZeZuxxjGWLy5BMw1L6PzgSvtW54fIg6jbtb">>},
-        {<<"token_type">>,<<"Bearer">>},
-        {<<"expires_in">>,3600}]
+#### Erlang Google OAuth 2.0 API client to generate API token for Google S2S requests
+
+### How to compile:
+
+`google_oauth` uses `erlang.mk` as make system. To compile
+
+```
+$ make
+```
+
+To generate release
+
+```
+$ make rel
+```
+
+### How to use with rebar:
+
+You can use `google_oauth` as a dependency in your rebar.config:
+
+```
+{deps , [
+    {google_oauth, ".*", {git, "https://github.com/pankajsoni19/google_oauth.git", {tag, "1.0.0"}}}
+]}.
+```
+
+### How to run the application fcm-erlang:
+
+`make rel` will create a release under `_rel/google_oauth` directory.
+
+```
+$ cd _rel/google_oauth
+$ bin/google_oauth console
+```
+
+### Request Token
+
+```
+{ok, Result} = google_oauth:get_access_token("service_account_file_path.json", SCOPE)
+
+Result = 
+#{
+        access_token    => binary()
+        expires_in      => integer() :: seconds, :: < 3600
+        token_type      => binary() :: <<"Bearer">>
+}
+```
+
+for push notification
+
+```
+google_oauth:get_access_token("service_account_file_path.json", <<"https://www.googleapis.com/auth/firebase.messaging">>)
+```