Go service toolkit

Reusable building blocks for Go services: logging, middleware, database helpers, Prometheus instrumentation, HTTP client/server utilities, and more.

Packages

• pkg/client: HTTP client helpers and OAuth2 client
• pkg/db: GORM setup, connection management, and metrics
• pkg/instrumented: Handler factory with structured logging and metrics
• pkg/log: Structured logging, audit logs, HTTP request/response logging
• pkg/logging: Global logger facade for convenience
• pkg/middlewares: Auth, tenant, tracing, URL filter middlewares
• pkg/migrate: Migration runner for PostgreSQL (SQL files)
• pkg/prom: Prometheus metrics utilities for HTTP client/server
• pkg/standard: Opinionated server/gateway wiring
• pkg/ticket: Lightweight JWT ticket verification/claims
• pkg/transport: Composable RoundTripper chain (retry, timeout, auth, trace)

Prometheus namespace

Metrics default to the d4l namespace for backward compatibility. You can set a custom namespace at runtime:

import (
    dbMetrics "github.com/d4l-data4life/go-svc/pkg/db"
    prom "github.com/d4l-data4life/go-svc/pkg/prom"
)

func init() {
    prom.SetNamespace("myapp")
    dbMetrics.SetPrometheusNamespace("myapp")
}

License

Apache License 2.0. See LICENSE.