mirror of https://github.com/ethereum/go-ethereum
Felix Lange
2 years ago
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title: Objects |
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description: Data structures used for RPC methods |
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--- |
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The following are data structures which are used for various RPC methods. |
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## Transaction call object {#transaction-call-object} |
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The _transaction call object_ contains all the necessary parameters for executing an EVM contract method. |
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| Field | Type | Bytes | Optional | Description | |
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| :--------------------- | :----------- | :---- | :------- | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |
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| `from` | `Address` | 20 | Yes | Address the transaction is simulated to have been sent from. Defaults to first account in the local keystore or the `0x00..0` address if no local accounts are available. | |
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| `to` | `Address` | 20 | No | Address the transaction is sent to. | |
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| `gas` | `Quantity` | <8 | Yes | Maximum gas allowance for the code execution to avoid infinite loops. Defaults to `2^63` or whatever value the node operator specified via `--rpc.gascap`. | |
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| `gasPrice` | `Quantity` | <32 | Yes | Number of `wei` to simulate paying for each unit of gas during execution. Defaults to `1 gwei`. | |
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| `maxFeePerGas` | `Quantity` | <32 | Yes | Maximum fee per gas the transaction should pay in total. Relevant for type-2 transactions. | |
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| `maxPriorityFeePerGas` | `Quantity` | <32 | Yes | Maximum tip per gas that's given directly to the miner. Relevant for type-2 transactions. | |
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| `value` | `Quantity` | <32 | Yes | Amount of `wei` to simulate sending along with the transaction. Defaults to `0`. | |
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| `nonce` | `Quantity` | <8 | Yes | Nonce of sender account. | |
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| `input` | `Binary` | any | Yes | Binary data to send to the target contract. Generally the 4 byte hash of the method signature followed by the ABI encoded parameters. For details please see the [Ethereum Contract ABI](https://docs.soliditylang.org/en/v0.7.0/abi-spec.html). This field was previously called `data`. | |
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| `accessList` | `AccessList` | any | Yes | A list of addresses and storage keys that the transaction plans to access. Used in non-legacy, i.e. type 1 and 2 transactions. | |
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| `chainId` | `Quantity` | <32 | Yes | Transaction only valid on networks with this chain ID. Used in non-legacy, i.e. type 1 and 2 transactions. | |
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Example for a legacy transaction: |
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```json |
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{ |
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"from": "0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3", |
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"to": "0xebe8efa441b9302a0d7eaecc277c09d20d684540", |
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"gas": "0x1bd7c", |
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"data": "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" |
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} |
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``` |
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Example for a type-1 transaction: |
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```json |
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{ |
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"from": "0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3", |
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"to": "0xebe8efa441b9302a0d7eaecc277c09d20d684540", |
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"gas": "0x1bd7c", |
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"data": "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", |
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"chainId": "0x1", |
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"accessList": [ |
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{ |
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"address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", |
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"storageKeys": ["0xda650992a54ccb05f924b3a73ba785211ba39a8912b6d270312f8e2c223fb9b1", "0x10d6a54a4754c8869d6886b5f5d7fbfa5b4 |
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522237ea5c60d11bc4e7a1ff9390b"] |
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}, { |
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"address": "0xa2327a938febf5fec13bacfb16ae10ecbc4cbdcf", |
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"storageKeys": [] |
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}, |
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] |
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} |
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``` |
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Example for a type-2 transaction: |
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```json |
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{ |
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"from": "0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3", |
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"to": "0xebe8efa441b9302a0d7eaecc277c09d20d684540", |
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"gas": "0x1bd7c", |
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"maxFeePerGas": "0x6b44b0285", |
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"maxPriorityFeePerGas": "0x6b44b0285", |
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"data": "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", |
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"chainId": "0x1", |
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"accessList": [] |
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} |
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``` |
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