mirror of
https://github.com/SamyRai/tercul-backend.git
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3bcd8d08f5
This commit introduces a comprehensive observability stack to the application, addressing a key objective from the TODO list. The following features have been implemented: - **Centralized Logging:** Replaced the existing custom logger with `zerolog` for structured, leveled, and performant logging. The logger is configured to output human-friendly console logs in development and JSON logs in production. - **Distributed Tracing:** Integrated OpenTelemetry to provide distributed tracing capabilities. A new middleware has been added to create spans for all incoming HTTP requests, and the trace context is propagated. - **Prometheus Metrics:** Added Prometheus metrics to monitor HTTP request latency and total request counts. A new `/metrics` endpoint is exposed on port 9090 to serve these metrics. - **Request ID:** Implemented a middleware to add a unique request ID to every incoming request and response, improving traceability. The new observability components are encapsulated in the `internal/observability` package, and the existing `internal/platform/log` package has been refactored to be a backward-compatible wrapper around the new logger. The main application entry point (`cmd/api/main.go`) has been updated to initialize and gracefully shut down the new observability components.
44 lines
1.4 KiB
Go
44 lines
1.4 KiB
Go
package main
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import (
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"net/http"
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"tercul/internal/adapters/graphql"
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"tercul/internal/observability"
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"tercul/internal/platform/auth"
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"github.com/99designs/gqlgen/graphql/handler"
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)
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// NewServer creates a new GraphQL server with the given resolver
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func NewServer(resolver *graphql.Resolver) http.Handler {
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c := graphql.Config{Resolvers: resolver}
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c.Directives.Binding = graphql.Binding
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srv := handler.NewDefaultServer(graphql.NewExecutableSchema(c))
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// Create a mux to handle GraphQL endpoint only (no playground here; served separately in production)
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mux := http.NewServeMux()
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mux.Handle("/query", srv)
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return mux
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}
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// NewServerWithAuth creates a new GraphQL server with authentication and observability middleware
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func NewServerWithAuth(resolver *graphql.Resolver, jwtManager *auth.JWTManager, metrics *observability.Metrics) http.Handler {
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c := graphql.Config{Resolvers: resolver}
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c.Directives.Binding = graphql.Binding
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srv := handler.NewDefaultServer(graphql.NewExecutableSchema(c))
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// Create a middleware chain
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var chain http.Handler
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chain = srv
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chain = auth.GraphQLAuthMiddleware(jwtManager)(chain)
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chain = metrics.PrometheusMiddleware(chain)
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chain = observability.TracingMiddleware(chain)
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chain = observability.RequestIDMiddleware(chain)
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// Create a mux to handle GraphQL endpoint
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mux := http.NewServeMux()
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mux.Handle("/query", chain)
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return mux
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} |