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feat(canary): wire geoip into main with NopService fallback 

openGeoIP opens cfg.GeoIP.Path and returns a (Lookuper, closer)
pair; on open failure (missing/unreadable mmdb) it returns
geoip.NopService() and a no-op closer so the rest of the wire-up
sees a consistent non-nil interface and the binary stays healthy
in environments without a MaxMind license. buildEventStack now
accepts a geoip.Lookuper and threads it into event.ServiceConfig.

Close is deferred in run() so the mmdb file handle releases on
graceful shutdown; a close-error is logged at warn (not fatal).
This commit is contained in:
CarterPerez-dev 2026-05-17 05:24:29 -04:00
parent b3fd75b680
commit 0e5ce63dc8
1 changed files with 25 additions and 1 deletions
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26
PROJECTS/beginner/canary-token-generator/backend/cmd/canary/main.go
View File

@ -23,6 +23,7 @@ import (
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/config"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/core"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/event"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/geoip"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/health"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/middleware"
"github.com/CarterPerez-dev/cybersecurity-projects/canary-token-generator/backend/internal/notify"
@ -92,8 +93,11 @@ func run(configPath string) error {
}
logger.Info("redis connected")
geo, geoCloser := openGeoIP(cfg, logger)
defer geoCloser()
notifySvc, eventSvc := buildEventStack(
cfg, logger, eventRepo, tokenRepo, rdb,
cfg, logger, eventRepo, tokenRepo, rdb, geo,
)
tokenSvc, verifier, healthH, tokenH := buildHTTPDeps(
cfg, logger, db, rdb, eventRepo, tokenRepo, eventSvc,
@ -169,6 +173,7 @@ func buildEventStack(
eventRepo *event.Repository,
tokenRepo *token.Repository,
rdb *core.Redis,
geo geoip.Lookuper,
) (*notify.Service, *event.Service) {
tgSender := telegram.NewSender(telegram.Config{
APIBase: cfg.Notify.TelegramAPIBase,
@ -199,11 +204,30 @@ func buildEventStack(
event.ServiceConfig{
DedupTTL: cfg.Notify.DedupTTL,
Logger: logger,
GeoIP: geo,
},
)
return notifySvc, eventSvc
}
func openGeoIP(
cfg *config.Config,
logger *slog.Logger,
) (geoip.Lookuper, func()) {
svc, err := geoip.Open(cfg.GeoIP.Path)
if err != nil {
logger.Warn("geoip unavailable, enrichment disabled",
"path", cfg.GeoIP.Path, "error", err)
return geoip.NopService(), func() {}
}
logger.Info("geoip opened", "path", cfg.GeoIP.Path)
return svc, func() {
if cErr := svc.Close(); cErr != nil {
logger.Warn("geoip close error", "error", cErr)
}
}
}
func spawnMySQLListener(
ctx context.Context,
cfg *config.Config,