Here is a list of the possible service errors, including the reference code, the user and developer messages, and a longer description of the error.
Errors are split in 3 major categories.
Error codes: from 1000 to 1999
This category includes all the errors generated by user input. There is no unexpected error nor bug here. The user should be able to address these issues. An example could be a wrong parameter (E.G. trying to access a non-existing repository, or a private repository without proper permissions).
Error codes: from 2000 to 2999
The programming errors are bugs or unexpected cases. In the first case, they should lead to creating a new GitHub issue; in the latter, it may be necessary to handle the specific error to provide the user a precise explanation.
Error codes: from 3000 to 3999
This category includes errors that may temporarily affect the user, but they don't necessarily depend on a wrong input nor can they be classified as a bug. Repeating the same action after some time may be enough to solve the problem. An example could be a temporarily unavailable backend service (E.G. the GitLab instance) or a transient network problem.
renku.ui.service.errors