Kamu

Changed
- Demanding required env vars to be set before API server / Web UI server startup
- Custom error messages for non-valid session in GraphQL queries depending on the reason
Fixed
- If access token points on unsupported login method, it's a client error (4xx), not (5xx)

Changed
- GitHub API results (login, token resolution, account queries) now have a runtime cache
to avoid excessive number of external calls (and related call rate bans)

Changed
- GitHub Client ID now delivered as a part of runtime configuration for UI
Fixed
- Crashes upon iterating multi-tenant local FS datasets with short dataset alias

Added
- Ability to login to a remote ODF server via CLI commands:
- `kamu login` command opens platform's frontend login form and collects access token on success
- `kamu logout` command drops previously saved access token
- tokens can be stored both in local workspace as well as in user home folder
- access tokens are attached as Bearer Authentication header in simple/smart protocol client requests
- ODF server handlers for simple/smart protocols correctly implement authentication & authorization checks
- ODF server URLs vary depending on multi-tenancy vs single-tenancy of dataset repository
Changed
- Significantly reworked smart transfer protocol tests, support of multi-tenancy, authentication, authorization

Fixed
- Flight SQL + JDBC connector showing empty result for `GROUP BY` statements

Added
- New protocol adapter for [Arrow Flight SQL](https://arrow.apache.org/blog/2022/02/16/introducing-arrow-flight-sql/)
- Using this adapter you can connect to `kamu` as JDBC data source from DBeaver, Tableau and other BI tools
- To run Flight SQL server use `kamu sql server --flight-sql` command