API Reference

The GoFHIR Validator Go library lives under a single import path:

import "github.com/gofhir/validator/pkg/validator"

The library follows the functional options pattern for configuration. You create a Validator once with all the options you need, then call Validate or ValidateJSON as many times as required.

Thread safety – After creation, the Validator is safe for concurrent use. You can call Validate from multiple goroutines without synchronization. All internal caches and indexes are built during construction and are read-only at validation time.

Packages

Package	Import	Purpose
`validator`	`pkg/validator`	Main entry point – constructor, options, `Validate` method
`issue`	`pkg/issue`	Validation results, issues, severity and code constants
`terminology`	`pkg/terminology`	`Provider` interface for external terminology servers
`registry`	`pkg/registry`	`ProfileResolver` interface for on-demand SD loading

Explore

Validator

Constructor, methods, and configuration options

Result & Issues

Result type, Issue fields, severity and code constants

Terminology Provider

Interface for external code system validation

Profile Resolver

Interface for on-demand StructureDefinition loading

Last updated on March 1, 2026