Add new strategy / platform

Supporting new login strategies / platforms is pretty simple if there is a passport module available for it.

Compare for instance PR #45, which added support for "strava". The steps required are:

• Create a new strategy file (e.g. like this)
• Import the new strategy to strategies index
• Add tests
• Add it to the README.md:
  • About
  • <Platform> specific environment variables
  • Endpoint
• Test locally with your account

Please run npm test and make sure everything is OK before creating the PR. This reduces noise in the PR and commit history.

Local strategy testing

Before creating the PR, please check your strategy/platform yourself. You will typically need:

• A "dev" account on your platform
• An "App" with a pair of CLIENTSECRET and CLIENTID. The names for this info vary.

For testing set the callback parameter of the "App" to http://localhost:3000/<platform>/callback, e.g. http://localhost:3000/twitter/callback.

Then you can run the login-with microservice locally like this:

LW_JWT_SECRET=whatever LW_SESSION_SECRET=foobar LW_<PLATFORM>_CLIENTID=<YOUR_CLIENTID> LW_<PLATFORM>_CLIENTSECRET=<YOUR_CLIENTSECRET> npm start

If everything works right, you can open a browser on http://locahost:3000/<platform> and you will see you login profile.

Your are ready for PR!

Inclusion in login-with.com demo

I am very sorry, but I probably won't enable your login on the "Try it" section of login-with.com, that's why:

To add your specific service to the login-with.com demo site, I have to create a "dev" account on the respective platform. Eventually I will have to submit a new App (the demo) and sometimes I get refused (snapchat).

Frankly I don't want to spread my personal data on every platform.