Nest framework TypeScript starter repository.
$ yarn installPORT=3000
CONFIG_APP_URL=https://app.deuro.com
CONFIG_INDEXER_URL=https://ponder.deuro.com
CONFIG_CHAIN=mainnet
RPC_URL_MAINNET=https://eth-mainnet.g.alchemy.com/v2/[API-KEY]
RPC_URL_POLYGON=https://polygon-mainnet.g.alchemy.com/v2/[API-KEY]
# See "CoinGecko" section below.
COINGECKO_BASE_URL=http://pricing-proxy:8080/coingecko
# COINGECKO_API_KEY=
TELEGRAM_BOT_TOKEN=[API-KEY]
TELEGRAM_GROUPS_JSON=telegram.groups.json
TELEGRAM_IMAGES_DIR=./images
The api fetches token prices from a CoinGecko-compatible endpoint. Configuration is two env vars:
| Var | Required | Purpose |
|---|---|---|
COINGECKO_BASE_URL |
yes | Origin the api calls. |
COINGECKO_API_KEY |
no | Attached as the x-cg-pro-api-key header on every request when set. |
The recommended deployment is the pricing-proxy — a small caching reverse-proxy in front of CoinGecko Pro. It holds the upstream key, serves a 60 s shared cache, validates upstream error envelopes, and coalesces concurrent identical requests. When you use the proxy:
COINGECKO_BASE_URL=http://pricing-proxy:8080/coingecko
# COINGECKO_API_KEY left unset — the proxy injects its own keyWithout the proxy, talk to CoinGecko directly:
COINGECKO_BASE_URL=https://pro-api.coingecko.com
COINGECKO_API_KEY=CG-xxxxxxxxxxxxxxxxxxxxxxxxThe api refuses to start without COINGECKO_BASE_URL.
# development
$ yarn run start
# watch mode
$ yarn run start:dev
# production mode
$ yarn run start:prod
# Publish NPM pkg (higher version) - needs login
$ npm publish --access publicNest is MIT licensed. This repo is MIT licensed.