# Which Problems Are Solved
Streams allow differentiating logs produced by different components of
Zitadel.
# How the Problems Are Solved
The `backend/v3/instrumentation/logging` package now exposes convenience
function for setting and getting a logger from the context. As well as
high-level functions to emit log records at various levels. When
constructing a new logger a "stream" needs to be specified:
- **runtime**: General runtime logs, such as startup and shutdown
messages. Default for logs that do not belong to the other categories.
- **request**: Logs for incoming API and HTTP requests.
- **event_handler**: Logs for event handling in projections.
- **queue**: Logs for the job queue processing.
- **event_pusher**: Logs for event pushing to the database. Disabled by
default, contains sensitive information.
Each line from the returned logger contains a `stream` field as well as
a `version` field with the current Zitadel version.
## Runtime config
Streams can be enabled by passing an array of stream names in the
runtime config. Because some log streams may contain sensitive data
(especially events), it is now also possible to mask values by their
key.
# Additional Changes
- Wrap `slogctx` in the `logging` package. (Except API error converter
packages, because of import cycle)
- Add some docs to `logging` package so other devs understand how to add
logging to Zitadel
- Add `logging.OnError` and `logging.WithError` helper functions with
`Panic()` and `Fatal()` methods, to preserve current calls in the `cmd`
packages.
- Add instance context extractor.
- Only output request details in the request info log. Request ID
remains propagated through context.
- Moved middleware functionality into protocol specific packages.
- Removed setting of URI to context in metric middleware. There were ony
setters and no getters. (Unused value)
- Reuse a single statusWriter in the middleware package for middlewares
that need to know the response status.
# Additional Context
- Closes#11333
- Closes#11331
- Partly #11330
---------
Co-authored-by: Silvan <[email protected]>
# Which Problems Are Solved
Add the possibility to filter project resources based on project member
roles.
# How the Problems Are Solved
Extend and refactor existing Pl/PgSQL functions to implement the
following:
- Solve O(n) complexity in returned resources IDs by returning a boolean
filter for instance level permissions.
- Individually permitted orgs are returned only if there was no instance
permission
- Individually permitted projects are returned only if there was no
instance permission
- Because of the multiple filter terms, use `INNER JOIN`s instead of
`WHERE` clauses.
# Additional Changes
- system permission function no longer query the organization view and
therefore can be `immutable`, giving big performance benefits for
frequently reused system users. (like our hosted login in Zitadel cloud)
- The permitted org and project functions are now defined as `stable`
because the don't modify on-disk data. This might give a small
performance gain
- The Pl/PgSQL functions are now tested using Go unit tests.
# Additional Context
- Depends on https://github.com/zitadel/zitadel/pull/9677
- Part of https://github.com/zitadel/zitadel/issues/9188
- Closes https://github.com/zitadel/zitadel/issues/9190
