gosignit

Prerequisites:

Install TrustWallet

cd lib
git clone https://github.com/trustwallet/wallet-core trustwallet
cd trustwallet
./bootstrap.sh

API Reference

Ping

Request:

GET /ping

Response:

{
  "ping": "pong"
}

Get supported coins

Request:

GET /api/v1/coins

Response:

[
  {
    "id": "bitcoin",
    "name": "Bitcoin",
    "derivation_path": "m/84'/0'/0'/0/0",
    "symbol": "BTC",
    "decimals": 8,
    "explorer_transaction_url": "https://blockchair.com/bitcoin/transaction/",
    "explorer_account_url": "https://blockchair.com/bitcoin/address/"
  },
  {
    "id": "litecoin",
    "name": "Litecoin",
    "derivation_path": "m/84'/2'/0'/0/0",
    "symbol": "LTC",
    "decimals": 8,
    "explorer_transaction_url": "https://blockchair.com/litecoin/transaction/",
    "explorer_account_url": "https://blockchair.com/litecoin/address/"
  },
  {
    "id": "doge",
    "name": "Dogecoin",
    "derivation_path": "m/44'/3'/0'/0/0",
    "symbol": "DOGE",
    "decimals": 8,
    "explorer_transaction_url": "https://blockchair.com/dogecoin/transaction/",
    "explorer_account_url": "https://blockchair.com/dogecoin/address/"
  },
  <...>
]

Sign Transactions

Bitcoin blockchain

Request:

Use certain coin id from the list above as coinId path parameter.

GET /api/v1/{coinId}/sign
Content-Type: application/json

{
  "amount": 1020304,
  "byte_fee": 1,
  "to_address": "1Bp9U1ogV3A14FMvKbRJms7ctyso4Z4Tcx",
  "change_address": "1FQc5LdgGHMHEN9nwkjmz6tWkxhPpxBvBU",
  "use_max_amount": false,
  "utxo": [
    {
      "hash": "fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f",
      "index": 0,
      "sequence": 4294967295,
      "amount": 625000000
    }
  ]
}

Resopnse:

{
  "gate": "bitcoin",
  "tx": {
    "amount": 1020304,
    "byte_fee": 1,
    "to_address": "1Bp9U1ogV3A14FMvKbRJms7ctyso4Z4Tcx",
    "utxo": [
      {
        "hash": "fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f",
        "sequence": 4294967295,
        "amount": 625000000
      }
    ],
    "change_address": "1FQc5LdgGHMHEN9nwkjmz6tWkxhPpxBvBU"
  },
  "signed": {
    "transaction": {
      "version": 1,
      "inputs": [
        {
          "hash": "fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f",
          "sequence": 4294967295
        }
      ],
      "outputs": [
        {
          "value": 1020304,
          "script": "76a914769bdff96a02f9135a1d19b749db6a78fe07dc9088ac"
        },
        {
          "value": 623979549,
          "script": "76a9149e089b6889e032d46e3b915a3392edfd616fb1c488ac"
        }
      ]
    },
    "encoded": "01000000000101fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f0000000000ffffffff0290910f00000000001976a914769bdff96a02f9135a1d19b749db6a78fe07dc9088ac1d2c3125000000001976a9149e089b6889e032d46e3b915a3392edfd616fb1c488ac02483045022100aa5a036b44389d78616caf62053f755388ea4779e571d4ded896f1929aa6ec410220351588f57b7354076ec794b05227a243e9aacba1e2ebbd479adc86995df04a74012103df8635c33eae028e20d912120ee1a7304c3bb1e454e69682b16fcf1e3a3128fd00000000",
    "transaction_id": "aabc41f7c15071c1cd95e5fb10280fad5f52bff49353c932149b93f78e898e6f"
  }
}

Ethereum blockchain

Request:

Use certain coin id from the list above as coinId path parameter.

GET /api/v1/{coinId}/sign
Content-Type: application/json

{
  "chain_id": "01",
  "gas_price": "d693a400",
  "gas_limit": "5208",
  "to_address": "0xC37054b3b48C3317082E7ba872d7753D13da4986",
  "amount": "0348bca5a16000",
  "tx_type": "transfer"
}

Resopnse:

{
  "gate": "ethereum",
  "tx": {
    "chain_id": "01",
    "gas_price": "d693a400",
    "gas_limit": "5208",
    "to_address": "0xC37054b3b48C3317082E7ba872d7753D13da4986",
    "tx_type": "transfer",
    "amount": "0348bca5a16000"
  },
  "signed": {
    "encoded": "f86a8084d693a40082520894c37054b3b48c3317082e7ba872d7753d13da4986870348bca5a160008025a01c3e0d4bc1f9bd38bf550d9ed06d0b1705e704477637fef1c402441d0e006c7aa04414ddd9760440809fb2263b5951fb507c527ac67ea3966a13d18df0a5bc87a2",
    "v": "25",
    "r": "1c3e0d4bc1f9bd38bf550d9ed06d0b1705e704477637fef1c402441d0e006c7a",
    "s": "4414ddd9760440809fb2263b5951fb507c527ac67ea3966a13d18df0a5bc87a2"
  }
}

NOTE: Bytes values (hashes, scripts, keys...) are HEX-encoded to strings.