88 lines
5.3 KiB
Markdown
88 lines
5.3 KiB
Markdown
# Structured Log Formatter
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**Terminal utility to pretty-print JSON-strucutred log lines.**
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## Usage
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`slfmt` is intended to be used to filter logging output from a process. It
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reads from `stdin` and writes to `stdout`. It expects to see a JSON object on
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each line of input, and will pretty-print the object to `stdout`. Escape codes
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in the log lines (`\n` for newlines, etc.) are supported and will be expanded
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in the output.
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Any lines that are not valid JSON objects will be printed as-is to `stdout`.
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Example:
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```bash
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./run-server | slfmt
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```
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Sample Output:
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```
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---------------------------------------------------------------------------------------
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scope: "server/rest_api"
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level: "ERROR"
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ts:
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2025-01-03T08:46:35-06:00 (local) 2025-01-03T14:46:35Z (UTC)
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msg: unhandled exception (DbError)
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err:
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ERROR: relation "users" does not exist
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LINE 1: SELECT id FROM users WHERE id = '43422d65-6874-44ce-b9b3-f8c...
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^
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stack:
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(519) workerProc
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(450) runTask
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy/routers.nim(271) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/api.nim(65) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/auth.nim(74) extractSession
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(599) createOrUpdateUser
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(384) createOrUpdateRecord
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(497) getAllRows
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(174) setupQuery
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(116) dbError
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[[reraised from:
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(519) workerProc
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(450) runTask
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy/routers.nim(271) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/api.nim(65) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/auth.nim(74) extractSession
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(727) createOrUpdateUser
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]]
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---------------------------------------------------------------------------------------
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scope: "server/rest_api"
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level: "ERROR"
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ts:
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2025-01-03T08:46:35-06:00 (local) 2025-01-03T14:46:35Z (UTC)
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msg: unhandled exception (DbError)
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err:
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ERROR: relation "users" does not exist
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LINE 1: SELECT id FROM users WHERE id = '43422d65-6874-44ce-b9b3-f8c...
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^
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stack:
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(519) workerProc
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(450) runTask
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy/routers.nim(271) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/api.nim(65) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/auth.nim(74) extractSession
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(599) createOrUpdateUser
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(384) createOrUpdateRecord
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(497) getAllRows
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(174) setupQuery
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/db_connector-0.1.0-d68319e3785fa937f0465ea915e942b61b6b5442/db_connector/db_postgres.nim(116) dbError
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[[reraised from:
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(519) workerProc
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy.nim(450) runTask
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/home/username/.local/share/mise/installs/nim/2.2.0/nimble/pkgs2/mummy-0.4.5-cb7f70cd4d6fd3a563e00e664cfbd8cbd3c39b79/mummy/routers.nim(271) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/api.nim(65) :anonymous
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/home/username/projects/server/api/src/main/nim/server_api/auth.nim(74) extractSession
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/home/username/projects/fiber-orm-nim/src/fiber_orm.nim(727) createOrUpdateUser
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]]
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```
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