66370a7f0e
* Add tools for creating, retrieving, updating, and deleting thoughts. * Implement project management tools for creating and listing projects. * Introduce linking functionality between thoughts. * Add search and recall capabilities for thoughts based on semantic queries. * Implement statistics and summarization tools for thought analysis. * Create database migrations for thoughts, projects, and links. * Add helper functions for UUID parsing and project resolution.
111 lines
2.8 KiB
Go
111 lines
2.8 KiB
Go
package observability
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import (
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"context"
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"log/slog"
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"net"
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"net/http"
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"runtime/debug"
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"time"
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"github.com/google/uuid"
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)
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type contextKey string
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const requestIDContextKey contextKey = "request_id"
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func Chain(h http.Handler, middlewares ...func(http.Handler) http.Handler) http.Handler {
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for i := len(middlewares) - 1; i >= 0; i-- {
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h = middlewares[i](h)
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}
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return h
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}
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func RequestID() func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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requestID := r.Header.Get("X-Request-Id")
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if requestID == "" {
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requestID = uuid.NewString()
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}
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w.Header().Set("X-Request-Id", requestID)
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ctx := context.WithValue(r.Context(), requestIDContextKey, requestID)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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}
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func Recover(log *slog.Logger) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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defer func() {
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if recovered := recover(); recovered != nil {
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log.Error("panic recovered",
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slog.Any("panic", recovered),
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slog.String("request_id", RequestIDFromContext(r.Context())),
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slog.String("stack", string(debug.Stack())),
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)
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http.Error(w, "internal server error", http.StatusInternalServerError)
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}
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}()
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next.ServeHTTP(w, r)
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})
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}
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}
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func AccessLog(log *slog.Logger) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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recorder := &statusRecorder{ResponseWriter: w, status: http.StatusOK}
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started := time.Now()
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next.ServeHTTP(recorder, r)
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log.Info("http request",
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slog.String("request_id", RequestIDFromContext(r.Context())),
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slog.String("method", r.Method),
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slog.String("path", r.URL.Path),
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slog.Int("status", recorder.status),
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slog.Duration("duration", time.Since(started)),
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slog.String("remote_addr", stripPort(r.RemoteAddr)),
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)
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})
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}
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}
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func Timeout(timeout time.Duration) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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if timeout <= 0 {
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return next
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}
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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ctx, cancel := context.WithTimeout(r.Context(), timeout)
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defer cancel()
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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}
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func RequestIDFromContext(ctx context.Context) string {
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value, _ := ctx.Value(requestIDContextKey).(string)
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return value
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}
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type statusRecorder struct {
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http.ResponseWriter
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status int
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}
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func (s *statusRecorder) WriteHeader(statusCode int) {
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s.status = statusCode
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s.ResponseWriter.WriteHeader(statusCode)
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}
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func stripPort(remote string) string {
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host, _, err := net.SplitHostPort(remote)
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if err != nil {
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return remote
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}
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return host
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}
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