mirror of
https://github.com/Memo-2023/mana-monorepo.git
synced 2026-05-20 09:53:40 +02:00
7e931b1c6d
mana-search-go → mana-search mana-notify-go → mana-notify mana-crawler-go → mana-crawler mana-api-gateway-go → mana-api-gateway Legacy NestJS versions are deleted, suffix no longer needed. Updated all references in docker-compose, CLAUDE.md, package.json, Forgejo workflows, and service package.json files. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
69 lines
2 KiB
Go
69 lines
2 KiB
Go
package handler
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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"github.com/redis/go-redis/v9"
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)
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// HealthHandler handles health and metrics endpoints.
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type HealthHandler struct {
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pool *pgxpool.Pool
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redis *redis.Client
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startTime time.Time
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}
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// NewHealthHandler creates a new health handler.
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func NewHealthHandler(pool *pgxpool.Pool, rdb *redis.Client) *HealthHandler {
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return &HealthHandler{pool: pool, redis: rdb, startTime: time.Now()}
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}
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// Health handles GET /health
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func (h *HealthHandler) Health(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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dbOK := "ok"
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if err := h.pool.Ping(ctx); err != nil {
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dbOK = "error"
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}
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redisOK := "ok"
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if err := h.redis.Ping(ctx).Err(); err != nil {
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redisOK = "error"
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}
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status := "ok"
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if dbOK != "ok" || redisOK != "ok" {
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status = "degraded"
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}
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writeJSON(w, http.StatusOK, map[string]any{
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"status": status,
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"service": "mana-api-gateway",
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"timestamp": time.Now().UTC().Format(time.RFC3339),
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"uptime": time.Since(h.startTime).Seconds(),
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"database": dbOK,
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"redis": redisOK,
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})
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}
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// Metrics handles GET /metrics (Prometheus format)
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func (h *HealthHandler) Metrics(w http.ResponseWriter, r *http.Request) {
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uptime := time.Since(h.startTime).Seconds()
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w.Header().Set("Content-Type", "text/plain")
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fmt.Fprintf(w, "# HELP mana_api_gateway_uptime_seconds Gateway uptime\n")
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fmt.Fprintf(w, "# TYPE mana_api_gateway_uptime_seconds gauge\n")
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fmt.Fprintf(w, "mana_api_gateway_uptime_seconds %.0f\n", uptime)
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// DB pool stats
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stats := h.pool.Stat()
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fmt.Fprintf(w, "# HELP mana_api_gateway_db_connections Database connection pool\n")
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fmt.Fprintf(w, "# TYPE mana_api_gateway_db_connections gauge\n")
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fmt.Fprintf(w, "mana_api_gateway_db_connections{state=\"total\"} %d\n", stats.TotalConns())
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fmt.Fprintf(w, "mana_api_gateway_db_connections{state=\"idle\"} %d\n", stats.IdleConns())
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fmt.Fprintf(w, "mana_api_gateway_db_connections{state=\"acquired\"} %d\n", stats.AcquiredConns())
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}
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