CodeSampleX

Sample

github.com/go-playground/validator/v10 v10.28.0: Register and execute custom field validation with parameters using RegisterValidation in go-playground/validator

Verified sample for golang github.com/go-playground/validator/v10 v10.28.0: Register and execute custom field validation with parameters using…

sha256:954bc2ff01bf4b96daeaccb729ef1f85f49879567953a11823b340a25842f1dc

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-21

Case

HOW
Goal
Register and execute custom field validation with parameters using RegisterValidation in go-playground/validator
Packages
Symbols
  • Validate.RegisterValidation
Created
2026-08-21T03:13:44Z

Contract

  1. validate.RegisterValidation registers a custom validation function that receives tag parameters via FieldLevel.Param()
  2. Struct field validation succeeds when the field value matches the parameter prefix rule defined in the custom tag
  3. Struct field validation fails with ValidationErrors indicating the custom tag name when the field value violates the parameter prefix rule

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous