Signer interface

Each Signer implements an interface.

Metadata

Get Signer metadata

GET https://api-ccmp.bitoftrade.com/metadata

200: OK

{
  "name": "signer_name",
  "availableChains": [1, 56, 137],
  "signer": "0x86f3b7f305f9d02e243a28445a15ecb6eeb12288"
}

GET /metadata the endpoint returns an object with the following type:

{
  "name": "signer_name",
  "availableChains": [1, 56, 137],
  "signer": "0x86f3b7f305f9d02e243a28445a15ecb6eeb12288"
}

Where:

• name is the human-recognizable name of the signer

• availableChains is the list of supported chains

• signer is the address which is used to sign messages

Sign event

Get proof of the event

POST https://api-ccmp.bitoftrade.com/sign-event

Request Body

Name	Type	Description
chainId*	Number	Chain id of the event
txHash*	String	Transaction hash of the event
abi*	Object	ABI of the event

200: OK

{
  "chainId": 1,
  "txHash": "0xa3b1123b8181f27c30f9cae42340325f0fcecf80c7886045dc159a8b8abd9a63",
  "eventHash": "0x2d734e2f6520ad47f4fbd40ac2f7fa491c029d1b06916be7ba544e2133d16bb5",
  "signature": "0xd189b3df1b889c280f4dc84de5aaaf9aaf425838752ff3ceb13234aae17d12f46375420d93181968ce03d02a5069c2d848a2512113d24004db9001ff889d9fa21c",
  "signer": "0x50fde2a03a1edfd7e1fddeda73d6620a1d0beee3",
  "params": [
    "Transfer",
    1,
    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "0xa3b1123b8181f27c30f9cae42340325f0fcecf80c7886045dc159a8b8abd9a63",
    "0x974CaA59e49682CdA0AD2bbe82983419A2ECC400",
    "0x59169f3c0e9e3630D0EBa5E5561dC1677D9451F3",
    "1574766820"
  ]
}

POST /sign-event the endpoint which is used to get proof of the event.

This endpoint requires a request body with the following type:

{
  "chainId": 1,
  "txHash": "0x0615eacbe66c7547142654509c136119c7a6432b6405264901496fa47009e35e",
  "abi": {
    "name": "string",
    "type": "string",
    "anonymous": true,
    "inputs": [
      {
        "name": "string",
        "type": "string",
        "indexed": true
      }
    ]
  },
  "eventLogIndex": 1
}

Where:

• chainId and txHash are from the transaction that has the event,

• abi is the ABI of the event

• eventLogIndex (optional) - parameter that specifies the log index for the event. By default, the first event-matched ABI will be selected.

The response body will have the following type:

{
  "chainId": 1,
  "txHash": "0xa3b1123b8181f27c30f9cae42340325f0fcecf80c7886045dc159a8b8abd9a63",
  "eventHash": "0x2d734e2f6520ad47f4fbd40ac2f7fa491c029d1b06916be7ba544e2133d16bb5",
  "signature": "0xd189b3df1b889c280f4dc84de5aaaf9aaf425838752ff3ceb13234aae17d12f46375420d93181968ce03d02a5069c2d848a2512113d24004db9001ff889d9fa21c",
  "signer": "0x50fde2a03a1edfd7e1fddeda73d6620a1d0beee3",
  "params": [
    "Transfer",
    1,
    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "0xa3b1123b8181f27c30f9cae42340325f0fcecf80c7886045dc159a8b8abd9a63",
    "0x974CaA59e49682CdA0AD2bbe82983419A2ECC400",
    "0x59169f3c0e9e3630D0EBa5E5561dC1677D9451F3",
    "1574766820"
  ]
}

Where:

• eventHash - hash of the event

• signature - is signed eventHash by the signer

• params - list of the params, eventId and eventArgs