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Chainlink Proof of Reserves composite adapter

This composite adapter first queries a list of custodial contracts of a protocol, then queries the BTC or ETH balances of each of these addresses, and finally reduces the balances to one total result.

Configuration

Each request to this composite adapter uses two underlying adapters, therefore their location needs to be defined.

At least one of each of the following categories must be set as an environment variable:

  1. A protocol adapter to retrieve custodial addresses (if not using list)

    Required? Name Description Options Defaults to
    WBTC_ADAPTER_URL The location of a WBTC external adapter
    RENVM_ADAPTER_URL The location of a RenVM external adapter
    GEMINI_ADAPTER_URL The location of a Gemini external adapter
    CHAIN_RESERVE_WALLET_ADAPTER_URL The location of a Chain reserve wallet adapter
    WRAPPED_ADAPTER_URL The location of a Wrapped external adapter

  2. An indexer adapter to retrieve account balances for each custodial address

    Required? Name Description Options Defaults to
    AMBERDATA_ADAPTER_URL The location of an Amberdata external adapter
    BITCOIN_JSON_RPC_ADAPTER_URL The location of an Bitcoin JSON RPC external adapter
    BLOCKCHAIN_COM_ADAPTER_URL The location of a Blockchain.com external adapter
    BLOCKCYPHER_ADAPTER_URL The location of a Blockcypher external adapter
    BLOCKCHAIR_ADAPTER_URL The location of a Blockchair external adapter
    BTC_COM_ADAPTER_URL The location of a BTC.com external adapter
    CRYPTOAPIS_ADAPTER_URL The location of a Crypto APIs external adapter
    SOCHAIN_ADAPTER_URL The location of a SoChain external adapter
    LOTUS_ADAPTER_URL The location of a Lotus external adapter
    ETH_BALANCE_ADAPTER_URL The location of a EthBalance external adapter
    ADA_BALANCE_ADAPTER_URL The location of a Ada balance external adapter

Running

See the Composite Adapter README for more information on how to get started.

Input Params

Required? Name Description Options Defaults to
✅ protocol The protocol external adapter to use chain_reserve_wallet, gemini, list, renvm, wbtc, wrapped
✅ indexer The indexer external adapter to use ada_balance, amberdata, bitcoin_json_rpc, blockchain_com. blockchair, blockcypher,btc_com, cryptoapis, eth_balance, lotus, sochain
confirmations The number of confirmations required for a transaction to be counted when getting an address balance 6
addresses An array of addresses to get the balance from, when "protocol" is set to list

Additionally the first underlying adapter in the sequence, in this case the protocol adapter, may have parameters.

For example RenVM uses the following:

Required? Name Description Options Defaults to
network The RenVM network to talk to mainnet, chaosnet, testnet testnet
tokenOrContract The token or contract to return an address for RenTokens, RenContract, Asset, BTC ZEC, BCH BTC

Please check the protocol external adapter's README for more information.