Hello. I spoke with customer support about getting an API access key. They directed me here. Am I able to get an api access key for my account?
you need to register first to get acceskey. here is the link to do that:
once you will register lightspeed guys will approve that and they will send you email with a link. you will need to click on that link and then you will get your client_id with client_secret.
you will need to request to this url to get access_token and refresh_token.
with grant_type "authorization_code"
the access_token which you will get that will be valid for half hour only.
you will need to regenerate access_token after every half n hour.
using the same url with refresh_token and grant_type as "refresh_token".
you can follow this link for more help.
Where do I get the URI from?
If you're talking about the Redirect URI, that's any valid resource you'd like. All you need that for is viewing the temporary token that Lightspeed pushes back into the URI. If this mechanism is being worked via a standard web browser, then you will see the temporary token in the address bar.
Like the documentation says, you can just use https://localhost if you don't have a public URI that you control.