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tiennm99 d1a01830ae feat(gold): add gold paper trading module

Opt-in module for gold paper trading with VND currency.
Commands: /gold_topup, /gold_buy, /gold_sell, /gold_stats.
Pricing: spot XAU USD converted to VND per luong via GoldPrice.org + ExchangeRate-API.
Features: FX caching, dust normalization (1e-9), HTTPS-only URL validation,
per-user key locking, namespace isolation from trading module.

2026-06-11 17:13:02 +07:00

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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
`gold`	Gold paper trading (opt-in; spot XAU converted to VND per luong)
`stats`	`/stats` (top commands), `/stats users`, `/stats user <name>`, `/stats cmd <name>`

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.

License

Apache-2.0.

2.4 KiB Raw Blame History