Setting up Force.com

Create a Force.com account

Force.com developer accounts are free. Sign up here

Create an OAuth client

1. Log into your developer account and go to remote access under setup -> develop -> remote access. Direct Link
2. Click New
3. Set callback url to the base URI of your app plus /_auth e.g. https://www.mydomain.com/_auth. This must be a secure URL (https), unless it’s a localhost URL, e.g. http://localhost:9000/_auth
4. Set a descriptive name. This will be shown to users who authenticate
5. Set your contact email and click Save
6. On the result page, the Consumer Key is your OAuth key and the Consumer Secret is your OAuth secret.