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tiennm99
819d4a985e
Sequential List + N GetItem made /stats latency scale with the number of tracked commands. On a cold Lambda container with ~25 commands the cumulative DynamoDB round-trips can exceed the 10s webhook handler deadline; the trailing chathelper.Reply -> b.SendMessage then fails on a cancelled ctx and the dispatcher only logs the error, leaving the user with no reply at all. Fan the per-key GetJSONs out into goroutines joined by sync.WaitGroup. Wall-clock latency collapses to ~1 round-trip while preserving the per-key error isolation (a single GetJSON failure still drops only its own row). Storage interface unchanged; no race regression vs. the prior per-item write pattern.
miti99bot
Plug-n-play Telegram bot framework in Go. Runs on AWS Lambda + DynamoDB + EventBridge Scheduler. Strictly free-tier.
Modules
| Module | What it does |
|---|---|
util |
/help, /info, /stickerid |
misc |
/ping, /mstats, /trongtruonghop disclaimer |
wordle |
Daily Wordle game |
loldle |
League-of-Legends "guess the champion" |
lolschedule |
Pro-match schedule + daily push |
twentyq |
20-questions game (requires Gemini API key) |
trading |
VN-stocks paper trading |
Disable any module by editing MODULES in template.yaml.
Layout
cmd/server/ entrypoint
internal/server/ HTTP routes (/, /webhook, /cron/{name})
internal/telegram/ Telegram webhook + bot wrapper
internal/modules/ Module framework, registry, dispatchers, modules
internal/storage/ KVStore interface; memory + dynamodb providers
internal/ai/ Gemini client (used by twentyq)
template.yaml AWS SAM IaC (Lambda + Function URL + DynamoDB + Logs + Budget)
docs/deploy-aws-free-tier-guide.md Full onboarding guide
docs/deploy-aws.md Steady-state operations
aws/README.md One-time AWS account setup
Run locally
In-memory KV (no AWS required):
TELEGRAM_BOT_TOKEN=… \
TELEGRAM_WEBHOOK_SECRET=local \
PORT=8080 \
MODULES= \
go run ./cmd/server
End-to-end smoke test against a Telegram dev bot needs ngrok (local) or a deployed Function URL. The dev bot is created manually; token injected via env vars only.
For DynamoDB integration tests:
make dynamodb-local # docker run amazon/dynamodb-local on :8001
make test-dynamodb # runs internal/storage tests against DDB Local
Test
make vet # go vet
make test # full unit suite (no emulator)
make test-dynamodb # storage tests against DynamoDB Local (requires Docker)
Deploy
First-time onboarding: see docs/deploy-aws-free-tier-guide.md.
Steady-state operations: docs/deploy-aws.md.
After the initial setup, every push to main triggers .github/workflows/deploy.yml (GitHub Actions OIDC → SAM deploy). No long-lived AWS keys.