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- What's New
- Service Overview
- Getting Started
- User Guide
- User Guide (Staking Nodes)
-
Developer Guide
-
Ethereum Node Engine
- Introduction
- JSON-RPC API Request Examples
- Application Development
- Smart Contract Development
-
Ethereum APIs
- Dedicated Edition
-
Shared Edition
- eth_blocknumber
- eth_getBlockByNumber
- eth_getUncleByBlockNumberAndIndex
- eth_getUncleByBlockHashAndIndex
- eth_getUncleCountByBlockNumber
- eth_getUncleCountByBlockHash
- eth_getBlockByHash
- eth_getTransactionByHash
- eth_getTransactionCount
- eth_getTransactionByBlockHashAndIndex
- eth_getTransactionByBlockNumberAndIndex
- eth_getBlockTransactionCountByHash
- eth_getBlockTransactionCountByNumber
- eth_getTransactionReceipt
- eth_sendRawTransaction
- eth_call
- eth_createAccessList
- eth_estimateGas
- eth_feeHistory
- eth_maxPriorityFeePerGas
- eth_gasPrice
- eth_getBalance
- eth_subscribe
- eth_unsubscribe
- eth_getStorageAt
- eth_getCode
- eth_getProof
- eth_getLogs
- eth_getFilterChanges
- eth_getFilterLogs
- eth_newBlockFilter
- eth_newFilter
- eth_newPendingTransactionFilter
- eth_uninstallFilter
- eth_chainId
- web3_sha3
- web3_clientVersion
- net_version
- net_listening
- TRON Node Engine
-
Polygon PoS
- Polygon PoS Introduction
- HTTP Request Examples
- WebSocket Request Examples
-
Polygon PoS APIs
- Dedicated Edition
-
Shared Edition
-
Ethereum JSON-RPC APIs
- eth_blocknumber
- eth_getBlockByNumber
- eth_getUncleByBlockNumberAndIndex
- eth_getUncleByBlockHashAndIndex
- eth_getUncleCountByBlockNumber
- eth_getUncleCountByBlockHash
- eth_getBlockByHash
- eth_getTransactionByHash
- eth_getTransactionCount
- eth_getTransactionByBlockHashAndIndex
- eth_getTransactionByBlockNumberAndIndex
- eth_getBlockTransactionCountByHash
- eth_getBlockTransactionCountByNumber
- eth_getTransactionReceiptsByBlock
- eth_getTransactionReceipt
- eth_sendRawTransaction
- eth_call
- eth_createAccessList
- eth_estimateGas
- eth_feeHistory
- eth_maxPriorityFeePerGas
- eth_gasPrice
- eth_getBalance
- eth_getRootHash
- eth_subscribe
- eth_unsubscribe
- eth_getStorageAt
- eth_accounts
- eth_getCode
- eth_getProof
- eth_getLogs
- eth_getFilterChanges
- eth_getFilterLogs
- eth_newBlockFilter
- eth_newFilter
- eth_newPendingTransactionFilter
- eth_uninstallFilter
- eth_chainId
- web3_sha3
- web3_clientVersion
- Polygon JSON-RPC APIs
-
Ethereum JSON-RPC APIs
-
Arbitrum
- Arbitrum Introduction
- HTTP Request Examples
- WebSocket Request Examples
-
Arbitrum APIs
-
Shared Edition
-
Ethereum JSON-RPC APIs
- eth_blocknumber
- eth_getBlockByNumber
- eth_getUncleByBlockNumberAndIndex
- eth_getUncleByBlockHashAndIndex
- eth_getUncleCountByBlockNumber
- eth_getUncleCountByBlockHash
- eth_getBlockByHash
- eth_getTransactionByHash
- eth_getTransactionCount
- eth_getTransactionByBlockHashAndIndex
- eth_getTransactionByBlockNumberAndIndex
- eth_getBlockTransactionCountByHash
- eth_getBlockTransactionCountByNumber
- eth_syncing
- eth_getTransactionReceipt
- eth_sendRawTransaction
- eth_call
- eth_createAccessList
- eth_estimateGas
- eth_feeHistory
- eth_maxPriorityFeePerGas
- eth_gasPrice
- eth_getBalance
- eth_subscribe
- eth_unsubscribe
- eth_getStorageAt
- eth_accounts
- eth_getCode
- eth_getProof
- eth_getLogs
- eth_getFilterChanges
- eth_getFilterLogs
- eth_newBlockFilter
- eth_newFilter
- eth_newPendingTransactionFilter
- eth_uninstallFilter
- eth_chainId
- web3_sha3
- web3_clientVersion
-
Ethereum JSON-RPC APIs
-
Shared Edition
-
BNB Smart Chain
- BNB Smart Chain Introduction
- HTTP Request Examples
- WebSocket Request Examples
-
BNB Smart Chain APIs
- Dedicated Edition
-
Shared Edition
- eth_blocknumber
- eth_getBlockByNumber
- eth_hashrate
- eth_getUncleCountByBlockNumber
- eth_getUncleCountByBlockHash
- eth_getBlockByHash
- eth_getTransactionByHash
- eth_getTransactionCount
- eth_getTransactionByBlockHashAndIndex
- eth_getTransactionByBlockNumberAndIndex
- eth_getBlockTransactionCountByHash
- eth_getBlockTransactionCountByNumber
- eth_syncing
- eth_getTransactionReceipt
- eth_sendRawTransaction
- eth_call
- eth_mining
- eth_estimateGas
- eth_feeHistory
- eth_maxPriorityFeePerGas
- eth_gasPrice
- eth_getBalance
- eth_subscribe
- eth_unsubscribe
- eth_getStorageAt
- eth_accounts
- eth_getCode
- eth_getProof
- eth_getLogs
- eth_getFilterChanges
- eth_getFilterLogs
- eth_newBlockFilter
- eth_newFilter
- eth_newPendingTransactionFilter
- eth_uninstallFilter
- eth_chainId
- web3_sha3
- web3_clientVersion
- txpool_status
- net_listening
- net_version
- Batch Requests
-
Ethereum Node Engine
- API Reference
-
FAQs
-
APIs
- How Do I Determine Whether Flow Control Is Triggered for an API?
- What Are the Flow Control Policies for Full Nodes?
- How Many Methods Can Be Included in a JSON-RPC Batch Request for the Dedicated Version?
- How Many WebSocket Connections Can Be Made Each Time?
- How Do I Use HTTP Endpoints and Authentication Credentials to Access Nodes?
- Staking Nodes
-
APIs
- General Reference
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What Are the Flow Control Policies for Full Nodes?
In order to guarantee the stable operation of your full nodes and optimize their performance, Node Engine Service (NES) assigns weights to APIs according to their specifications. When the total weight of all APIs per second surpasses the threshold, flow control is activated.
If your API requests are continuously restricted, it may result in delayed block synchronization and failed transactions. To prevent your services from being affected, you can:
- add nodes
- expand the specifications of existing nodes
- reduce the API calling frequency
- wait for several seconds and try again
Note that for a JSON-RPC batch processing request, the total weight of all methods in the request is calculated. In addition to the preceding ways, you can split methods to call them.
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