backstop/.env.example at main · edycutjong/backstop · GitHub

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# Backstop — Coston2 (chain 114) configuration.
# Copy to `.env` and fill in. `.env` is gitignored; NEVER commit a private key.
# Each var notes WHEN it's needed: [spike] Jul-30 FDC gate · [deploy] · [keeper] · [frontend].
# ─────────────────────────────────────────────────────────────────────────────

# === 1. RPC + chain (needed now) ============================================
# [spike][deploy][keeper] Public endpoint works for read-only + writes on Coston2.
# For heavy use, swap in a private RPC (e.g. from Ankr/dRPC) for reliability.
COSTON2_RPC_URL="https://coston2-api.flare.network/ext/C/rpc"
# [deploy][frontend] Chain id — Coston2 is 114. Rarely changed.
CHAIN_ID=114

# === 2. Deployer wallet (needed for spike stages d/e + deploy) ==============
# [spike][deploy] A FRESH, THROWAWAY testnet key — never a mainnet/real-funds key.
# Generate one:  cast wallet new
# Fund it with C2FLR from the faucet: https://faucet.flare.network/coston2
PRIVATE_KEY=""
# [deploy] Optional: the public address of the key above (some scripts log it).
# Derive it from the key:  cast wallet address --private-key $PRIVATE_KEY
DEPLOYER_ADDRESS=""

# === 3. FDC verifier + Data Availability Layer (needed for spike d/e + keeper)
# [spike][keeper] Verifier builds the abi-encoded RPN request (embeds the MIC).
VERIFIER_URL_TESTNET="https://fdc-verifiers-testnet.flare.network"
# Coston2 TESTNET uses a public, rate-limited default key (no signup):
#   00000000-0000-0000-0000-000000000000
# Higher limits / production: request via Flare technical support (flare.network/resources/technical-support).
VERIFIER_API_KEY_TESTNET="00000000-0000-0000-0000-000000000000"
# [spike][keeper] DA Layer serves the finalized response + Merkle proof.
COSTON2_DA_LAYER_URL="https://ctn2-data-availability.flare.network"
# Same public testnet default key as the verifier.
X_API_KEY="00000000-0000-0000-0000-000000000000"

# === 4. Contract verification on deploy (no API key needed) =================
# [deploy] Coston2 Blockscout verifies without a key:
#   forge script ... --verify --verifier blockscout \
#     --verifier-url https://coston2-explorer.flare.network/api/
# Left here for reference; no secret required.

# === 5. Deployed addresses (fill in AFTER `forge script Deploy`) ============
# [keeper][frontend] Get from: the `forge script Deploy` broadcast output (or
# broadcast/Deploy.s.sol/114/run-latest.json). Consumed by the keeper + UI.
BACKSTOP_ADDRESS=""
BACKSTOP_POOL_ADDRESS=""

# === 6. Keeper config (optional — sensible defaults in code) ================
# [keeper] How often the watcher polls redemption deadlines, in seconds.
KEEPER_POLL_SECONDS=30
# [keeper] Optional FTSO feed-id overrides (contract ships Coston2 defaults;
# set only if the Day-4 spike finds different bytes21 ids).
# Get from: https://dev.flare.network/ftso/feeds (bytes21 feed-id table).
XRP_USD_FEED_ID=""
FLR_USD_FEED_ID=""

# === 7. Frontend (needed when the Next.js app + /integrations/verify are built)
# NEXT_PUBLIC_* are exposed to the browser — never put secrets here.
NEXT_PUBLIC_CHAIN_ID=114
NEXT_PUBLIC_RPC_URL="https://coston2-api.flare.network/ext/C/rpc"
NEXT_PUBLIC_BACKSTOP_ADDRESS=""
NEXT_PUBLIC_BACKSTOP_POOL_ADDRESS=""
NEXT_PUBLIC_EXPLORER_URL="https://coston2-explorer.flare.network"
# Get from: https://cloud.reown.com (free) — for RainbowKit/WalletConnect.
NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID=""