Sample
Configure zap.Config OutputPaths with custom URI schemes via zap.RegisterSink and verify unregistered scheme rejection and URL parsing
sha256:46df4736d445e122bed613d66d9074610072b234cffa56ec4013cd41d2affee5
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- go
- Operating system
- linux
- Architecture
- x64
- Runtime
- go
- Language
- go
- Package manager
- go
Verification-run environments
- Execution context
- go 1.26
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- go 1.26
- Language
- go
- Package manager
- go
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17
Case
- Goal
- Configure zap.Config OutputPaths with custom URI schemes via zap.RegisterSink and verify unregistered scheme rejection and URL parsing HOW
- Packages
-
go.uber.org/zap 1.27.0
- Environment
- go
- Created
- 2026-08-17T11:48:38Z
Commonly assumed
zap.Config.Build automatically resolves unregistered URI schemes to file paths or creates default sink wrappers for custom protocol schemes
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- zap.Config.Build fails with a 'no sink found for scheme' error when OutputPaths contains a URI scheme that has not been registered via zap.RegisterSink.
- zap.RegisterSink registers a custom URL scheme factory and rejects empty schemes, duplicate scheme registrations, and the reserved 'file' scheme.
- zap.Config.Build parses custom OutputPaths URIs into url.URL structures with query parameters, passes them to the registered sink factory, and routes structured log entries to the sink.
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- zap_config_sink_test.go
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9