# Các phương thức JSON-RPC

> Source: https://docs.blockvectra.com/vi/api/json-rpc/methods/

BlockVectra hỗ trợ các phương thức Ethereum JSON-RPC 2.0 tiêu chuẩn trên các mạng blockchain được hỗ trợ. Các yêu cầu được đo bằng **Compute Units (CU)** và được giới hạn tốc độ theo từng key.

Chọn bất kỳ phương thức nào bên dưới để xem các tham số, cấu trúc trả về, ghi chú, ví dụ yêu cầu cURL và tính khả dụng theo từng chuỗi.

## Phương thức

| Phương thức | Mô tả | CU / Lệnh gọi |
| --- | --- | --- |
| [`eth_blockNumber`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_blockNumber/) (English) | Return the number of the latest block known to the node. | 1 CU |
| [`eth_chainId`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_chainId/) (English) | Return the EIP-155 chain ID of the current network. | 1 CU |
| [`eth_syncing`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_syncing/) (English) | Return the node's syncing status. | 10 CU |
| [`net_version`](https://docs.blockvectra.com/en/api/json-rpc/methods/net_version/) (English) | Return the network ID of the current network as a decimal string. | 10 CU |
| [`web3_clientVersion`](https://docs.blockvectra.com/en/api/json-rpc/methods/web3_clientVersion/) (English) | Return the client name and version string of the node. | 10 CU |
| [`eth_gasPrice`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_gasPrice/) (English) | Return the node's suggested current gas price in wei. | 10 CU |
| [`eth_maxPriorityFeePerGas`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_maxPriorityFeePerGas/) (English) | Return the node's suggested EIP-1559 priority fee (tip) per gas, in wei. | 10 CU |
| [`eth_feeHistory`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_feeHistory/) (English) | Return historical base fees, gas usage ratios and optional priority-fee percentiles over a range of blocks. | 10 CU |
| [`eth_estimateGas`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_estimateGas/) (English) | Estimate the gas limit a transaction would need. | 20 CU |
| [`eth_call`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_call/) (English) | Execute a read-only call against the state of a given block and return its result. | 15 CU |
| [`eth_simulateV1`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_simulateV1/) (English) | Simulate a sequence of calls or transactions against block state without broadcasting. | 20 CU |
| [`eth_getBalance`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getBalance/) (English) | Return the balance of an address at a given block, in wei. | 10 CU |
| [`eth_getCode`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getCode/) (English) | Return the contract bytecode deployed at an address at a given block. | 10 CU |
| [`eth_getStorageAt`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getStorageAt/) (English) | Return the raw value stored at a given storage slot of an address. | 10 CU |
| [`eth_getTransactionCount`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getTransactionCount/) (English) | Return the number of transactions sent from an address (its nonce) at a given block. | 10 CU |
| [`eth_getLogs`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getLogs/) (English) | Query event logs within a block range that match a filter. | 30 CU |
| [`eth_getBlockByNumber`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getBlockByNumber/) (English) | Return a block by its number, optionally with full transaction objects. | 5 CU |
| [`eth_getBlockByHash`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getBlockByHash/) (English) | Return a block by its hash, optionally with full transaction objects. | 10 CU |
| [`eth_getBlockReceipts`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getBlockReceipts/) (English) | Return all transaction receipts for a given block. | 10 CU |
| [`eth_getTransactionByHash`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getTransactionByHash/) (English) | Return a transaction by its hash. | 10 CU |
| [`eth_getTransactionReceipt`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_getTransactionReceipt/) (English) | Return the receipt (execution result) of a transaction by its hash. | 10 CU |
| [`eth_sendRawTransaction`](https://docs.blockvectra.com/en/api/json-rpc/methods/eth_sendRawTransaction/) (English) | Submit a signed raw transaction. | 30 CU |
| [`debug_traceTransaction`](https://docs.blockvectra.com/en/api/json-rpc/methods/debug_traceTransaction/) (English) | Reconstruct and replay the execution of a transaction to produce an execution trace. | 100 CU |
| [`debug_traceCall`](https://docs.blockvectra.com/en/api/json-rpc/methods/debug_traceCall/) (English) | Run an eth_call on top of a given block state and generate an execution trace. | 100 CU |
| [`trace_transaction`](https://docs.blockvectra.com/en/api/json-rpc/methods/trace_transaction/) (English) | Return all traces produced during the execution of a transaction. | 100 CU |

## Tài liệu tham khảo liên quan

* [Tổng quan về JSON-RPC và quy tắc đo lường](https://docs.blockvectra.com/en/api/json-rpc/)
* [Bảng mã lỗi](https://docs.blockvectra.com/en/api/json-rpc/#error-codes)
* [Chính sách phương thức theo chuỗi](https://docs.blockvectra.com/en/api/json-rpc/#method-policy)
* [Chuỗi được hỗ trợ](https://docs.blockvectra.com/en/chains/)