Eth

These methods are used for Ethereum-compatible JSON-RPC calls

EthAccounts will always return [] since we don't expect Lotus to manage private keys

EthAccounts

There are not yet any comments for this method.

Perms: read

Inputs: null

Response:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031"]

EthAddressToFilecoinAddress

EthAddressToFilecoinAddress converts an EthAddress into an f410 Filecoin Address

Perms: read

Inputs:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031"]

Response: "f01234"

FilecoinAddressToEthAddress

FilecoinAddressToEthAddress converts any Filecoin address to an EthAddress.

This method supports all Filecoin address types:

• f0 and f4 addresses: Converted directly.

• f1/f2/f3 addresses: First converted to their corresponding f0 ID address, then to an 0x EthAddress.

Note:

f0 ID addresses are not permanent and can be affected by chain reorganizations. To account for this, the API includes a blkNum parameter, which specifies the block number that is used to determine the tipset state to use for converting an f1/f2/f3 address to an f0 address. This parameter functions similarly to the blkNum parameter in the existing EthGetBlockByNumber API. See Alchemy Docs - eth_getBlockByNumber for more details.

Requirements:

• For f1/f2/f3 addresses, they must be instantiated on-chain, as f0 ID addresses are only assigned to actors when they are created on-chain. The simplest way to instantiate an address on chain is to send a transaction to the address.

Parameters:

• filecoinAddress: The Filecoin address to convert.

• blkNum: The block number or state for the conversion. Defaults to "finalized" for maximum safety. Possible values: "pending", "latest", "finalized", "safe", or a specific block number represented as hex.

Perms: read

Input:

["t410fghja63ghyzd54cbswfapglsutx5e64xnm7mazwi"]

Response:

"0x31d20f6cc7c647de0832b140f32e549dfa4f72ed"

Input:

["t15xwdubazj7aft6ylmiw54fa27zyyl3rpc6olgcy", "safe"]

Response:

"0xff00000000000000000000000000000000000064"

EthBlockNumber

EthBlockNumber returns the height of the latest (heaviest) TipSet

Perms: read

Inputs: null

Response: "0x5"

EthCall

Perms: read

Inputs:

[
  {
    "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
    "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
    "gas": "0x5",
    "gasPrice": "0x0",
    "value": "0x0",
    "data": "0x07"
  },
  "string value"
]

Response: "0x07"

EthChainId

Perms: read

Inputs: null

Response: "0x5"

EthEstimateGas

Perms: read

Inputs:

[
  {
    "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
    "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
    "gas": "0x5",
    "gasPrice": "0x0",
    "value": "0x0",
    "data": "0x07"
  }
]

Response: "0x5"

EthFeeHistory

Perms: read

Inputs:

["Bw=="]

Response:

{
  "oldestBlock": "0x5",
  "baseFeePerGas": ["0x0"],
  "gasUsedRatio": [12.3],
  "reward": []
}

EthGasPrice

Perms: read

Inputs: null

Response: "0x0"

EthGetBalance

Perms: read

Inputs:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031", "string value"]

Response: "0x0"

EthGetBlockByHash

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e", true]

Response:

{
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "parentHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "sha3Uncles": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "miner": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "stateRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "transactionsRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "receiptsRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "logsBloom": "0x07",
  "difficulty": "0x5",
  "totalDifficulty": "0x5",
  "number": "0x5",
  "gasLimit": "0x5",
  "gasUsed": "0x5",
  "timestamp": "0x5",
  "extraData": "0x07",
  "mixHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "nonce": "0x0707070707070707",
  "baseFeePerGas": "0x0",
  "size": "0x5",
  "transactions": [{}],
  "uncles": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ]
}

EthGetBlockByNumber

Perms: read

Inputs:

["string value", true]

Response:

{
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "parentHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "sha3Uncles": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "miner": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "stateRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "transactionsRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "receiptsRoot": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "logsBloom": "0x07",
  "difficulty": "0x5",
  "totalDifficulty": "0x5",
  "number": "0x5",
  "gasLimit": "0x5",
  "gasUsed": "0x5",
  "timestamp": "0x5",
  "extraData": "0x07",
  "mixHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "nonce": "0x0707070707070707",
  "baseFeePerGas": "0x0",
  "size": "0x5",
  "transactions": [{}],
  "uncles": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ]
}

EthGetBlockTransactionCountByHash

EthGetBlockTransactionCountByHash returns the number of messages in the TipSet

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response: "0x5"

EthGetBlockTransactionCountByNumber

EthGetBlockTransactionCountByNumber returns the number of messages in the TipSet

Perms: read

Inputs:

["0x5"]

Response: "0x5"

EthGetCode

Perms: read

Inputs:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031", "string value"]

Response: "0x07"

EthGetFilterChanges

Polling method for a filter, returns event logs which occurred since last poll. (requires write perm since timestamp of last filter execution will be written)

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response:

[{}]

EthGetFilterLogs

Returns event logs matching filter with given id. (requires write perm since timestamp of last filter execution will be written)

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response:

[{}]

EthGetLogs

Returns event logs matching given filter spec.

Perms: read

Inputs:

[
  {
    "fromBlock": "2301220",
    "address": ["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031"],
    "topics": null
  }
]

Response:

[{}]

EthGetMessageCidByTransactionHash

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response:

{
  "/": "bafy2bzacea3wsdh6y3a36tb3skempjoxqpuyompjbmfeyf34fi3uy6uue42v4"
}

EthGetStorageAt

Perms: read

Inputs:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031", "0x07", "string value"]

Response: "0x07"

EthGetTransactionByBlockHashAndIndex

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e", "0x5"]

Response:

{
  "chainId": "0x5",
  "nonce": "0x5",
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "transactionIndex": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "value": "0x0",
  "type": "0x5",
  "input": "0x07",
  "gas": "0x5",
  "maxFeePerGas": "0x0",
  "maxPriorityFeePerGas": "0x0",
  "accessList": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ],
  "v": "0x0",
  "r": "0x0",
  "s": "0x0"
}

EthGetTransactionByBlockNumberAndIndex

Perms: read

Inputs:

["0x5", "0x5"]

Response:

{
  "chainId": "0x5",
  "nonce": "0x5",
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "transactionIndex": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "value": "0x0",
  "type": "0x5",
  "input": "0x07",
  "gas": "0x5",
  "maxFeePerGas": "0x0",
  "maxPriorityFeePerGas": "0x0",
  "accessList": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ],
  "v": "0x0",
  "r": "0x0",
  "s": "0x0"
}

EthGetTransactionByHash

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response:

{
  "chainId": "0x5",
  "nonce": "0x5",
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "transactionIndex": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "value": "0x0",
  "type": "0x5",
  "input": "0x07",
  "gas": "0x5",
  "maxFeePerGas": "0x0",
  "maxPriorityFeePerGas": "0x0",
  "accessList": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ],
  "v": "0x0",
  "r": "0x0",
  "s": "0x0"
}

EthGetTransactionByHashLimited

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e", 10101]

Response:

{
  "chainId": "0x5",
  "nonce": "0x5",
  "hash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "transactionIndex": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "value": "0x0",
  "type": "0x5",
  "input": "0x07",
  "gas": "0x5",
  "maxFeePerGas": "0x0",
  "maxPriorityFeePerGas": "0x0",
  "accessList": [
    "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
  ],
  "v": "0x0",
  "r": "0x0",
  "s": "0x0"
}

EthGetTransactionCount

Perms: read

Inputs:

["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031", "string value"]

Response: "0x5"

EthGetTransactionHashByCid

Perms: read

Inputs:

[
  {
    "/": "bafy2bzacea3wsdh6y3a36tb3skempjoxqpuyompjbmfeyf34fi3uy6uue42v4"
  }
]

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthGetTransactionReceipt

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response:

{
  "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "transactionIndex": "0x5",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "root": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "status": "0x5",
  "contractAddress": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "cumulativeGasUsed": "0x5",
  "gasUsed": "0x5",
  "effectiveGasPrice": "0x0",
  "logsBloom": "0x07",
  "logs": [
    {
      "address": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
      "data": "0x07",
      "topics": [
        "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
      ],
      "removed": true,
      "logIndex": "0x5",
      "transactionIndex": "0x5",
      "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
      "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
      "blockNumber": "0x5"
    }
  ],
  "type": "0x5"
}

EthGetTransactionReceiptLimited

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e", 10101]

Response:

{
  "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "transactionIndex": "0x5",
  "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "blockNumber": "0x5",
  "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "root": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
  "status": "0x5",
  "contractAddress": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
  "cumulativeGasUsed": "0x5",
  "gasUsed": "0x5",
  "effectiveGasPrice": "0x0",
  "logsBloom": "0x07",
  "logs": [
    {
      "address": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
      "data": "0x07",
      "topics": [
        "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"
      ],
      "removed": true,
      "logIndex": "0x5",
      "transactionIndex": "0x5",
      "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
      "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
      "blockNumber": "0x5"
    }
  ],
  "type": "0x5"
}

EthMaxPriorityFeePerGas

Perms: read

Inputs: null

Response: "0x0"

EthNewBlockFilter

Installs a persistent filter to notify when a new block arrives.

Perms: read

Inputs: null

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthNewFilter

Installs a persistent filter based on given filter spec.

Perms: read

Inputs:

[
  {
    "fromBlock": "2301220",
    "address": ["0x5cbeecf99d3fdb3f25e309cc264f240bb0664031"],
    "topics": null
  }
]

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthNewPendingTransactionFilter

Installs a persistent filter to notify when new messages arrive in the message pool.

Perms: read

Inputs: null

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthProtocolVersion

Perms: read

Inputs: null

Response: "0x5"

EthSendRawTransaction

Perms: read

Inputs:

["0x07"]

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthSubscribe

Subscribe to different event types using websockets eventTypes is one or more of:

• newHeads: notify when new blocks arrive.

• pendingTransactions: notify when new messages arrive in the message pool.

• logs: notify new event logs that match a criteria params contains additional parameters used with the log event type The client will receive a stream of EthSubscriptionResponse values until EthUnsubscribe is called.

Perms: read

Inputs:

["Bw=="]

Response: "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"

EthSyncing

Perms: read

Inputs: null

Response: false

EthTraceBlock

TraceAPI related methods

Returns traces created at given block

Perms: read

Inputs:

["string value"]

Response:

[
  {
    "action": {
      "callType": "string value",
      "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
      "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
      "gas": "0x5",
      "input": "0x07",
      "value": "0x0"
    },
    "result": {
      "gasUsed": "0x5",
      "output": "0x07"
    },
    "subtraces": 123,
    "traceAddress": [123],
    "Type": "string value",
    "blockHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
    "blockNumber": 9,
    "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
    "transactionPosition": 123
  }
]

EthTraceReplayBlockTransactions

Replays all transactions in a block returning the requested traces for each transaction

Perms: read

Inputs:

["string value", ["string value"]]

Response:

[
  {
    "output": "0x07",
    "stateDiff": "string value",
    "trace": [
      {
        "action": {
          "callType": "string value",
          "from": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
          "to": "0x5cbeecf99d3fdb3f25e309cc264f240bb0664031",
          "gas": "0x5",
          "input": "0x07",
          "value": "0x0"
        },
        "result": {
          "gasUsed": "0x5",
          "output": "0x07"
        },
        "subtraces": 123,
        "traceAddress": [123],
        "Type": "string value"
      }
    ],
    "transactionHash": "0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e",
    "vmTrace": "string value"
  }
]

EthUninstallFilter

Uninstalls a filter with given id.

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response: true

EthUnsubscribe

Unsubscribe from a websocket subscription

Perms: read

Inputs:

["0x37690cfec6c1bf4c3b9288c7a5d783e98731e90b0a4c177c2a374c7a9427355e"]

Response: true

Was this page helpful?