Sample
Prove Gin 1.12.0 gin.Context.ShouldBindJSON stream consumption behavior, Content-Type independence, empty-body EOF response, and error reporting without automatic response writes.
sha256:ddd9c90bd83fb9e4174328cb2f8943e90f9d44f955bffaa56ded31ee00924bf4
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
- Prove Gin 1.12.0 gin.Context.ShouldBindJSON stream consumption behavior, Content-Type independence, empty-body EOF response, and error reporting without automatic response writes. HOW
- Packages
-
github.com/gin-gonic/gin v1.12.0
- Environment
- go
- Created
- 2026-08-17T22:55:40Z
Commonly assumed
ShouldBindJSON caches the request body to allow multiple binds on the same context, and requires an application/json Content-Type header before parsing.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- ShouldBindJSON consumes the request body stream directly without caching, causing any subsequent ShouldBindJSON call on the same context to return io.EOF.
- ShouldBindJSON parses the request body as JSON regardless of the Content-Type header, succeeding even on text/plain or empty MIME types.
- ShouldBindJSON returns io.EOF immediately when the request body is empty.
- ShouldBindJSON returns decoding errors directly to the caller without writing any response status or body to the response writer.
Files
- NOTES.md
- contract_test.go
- csx.json
- go.mod
- go.sum
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