LTI and Moodle
Moodle 3 as a LTI provider for edX (a consumer that only supports LTI 1)
I have a similar problem. When I try to use Moodle as LTI Provider and Open EdX as LTI consumer, the cartridge url can not be understood by Open Edx.
Moodle provides 3 parameters and LTI ID for LTI connection:
In Open Edx, LTI connection has 2 steps first as shown in screenshot, you need to write LTI Passports (id:client_key:client_secret), and after saving the changes in this page.
LTI ID and Client Secret are clear, for LTI URL I am using the launch URL obtained from cartridge URL, for client_key what should be written? When I write "test" in the client_key part, I receive the same error
"Failed request. Reason: Sorry, there was an error connecting you to the application."