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RPC_API_reference.md

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NewChain RPC API Reference

RPC Config

Testnet: https://rpc1.newchain.newtonproject.org

get_block_height

Gets the current block number

Ethereum equivalent: eth_blockNumber

Parameters

None

Return Values

An integer of the current block number where the client is located

get_block_by_height

Gets the block number of the specified block

Ethereum equivalent: eth_getBlockByNumber

Parameters

Two parameters:

  • A block-numbered integer (such as 0x1b4), or the string "earliest", "latest" or "pending".
  • The boolean type. If true, it returns all the complete transaction objects. If it is false, it only returns the hash value of the transaction object.

Return Values

Returns a block object, if it is not found to be null.

Value Type Returns
Number QUANTITY The block number. null when its pending block.
Hash DATA, 32 Bytes Hash of the block. null when its pending block.
parentHash DATA, 32 Bytes Hash of the parent block.
Nonce DATA, 8 Bytes Hash of the generated proof-of-work. null when its pending block.
sha3Uncles DATA, 32 Bytes SHA3 of the uncles data in the block.
logsBloom DATA, 256 Bytes The bloom filter for the logs of the block. null when its pending block.
transactionsRoot DATA, 32 Bytes The root of the transaction trie of the block.
stateRoot DATA, 32 Bytes The root of the final state trie of the block.
receiptsRoot DATA, 32 Bytes The root of the receipts trie of the block.
Miner DATA, 20 Bytes The address of the beneficiary to whom the mining rewards were given.
Difficulty QUANTITY Integer of the difficulty for this block.
totalDifficulty QUANTITY Integer of the total difficulty of the chain until this block.
extraData DATA The "extra data" field of this block.
Size QUANTITY Integer the size of this block in bytes.
gasLimit QUANTITY The maximum gas allowed in this block.
gasUsed QUANTITY The total used gas by all transactions in this block.
Timestamp QUANTITY The unix timestamp for when the block was collated.
Transactions Array Array of transaction objects, or 32 Bytes transaction hashes depending on the last given parameter.
Uncles Array Array of uncle hashes.

get_block_by_hash

Gets the block with the specified hash

Ethereum equivalent: eth_getBlockByHash

Parameters

Two parameters:

  • The hash value of the block (32 bytes)
  • The boolean type. If true, it returns all the complete transaction objects. If false, it only returns the hash value of the transaction object.

Return Values

Returns a block object, if it is not found to be null.

Value Type Returns
Number QUANTITY The block number. null when its pending block.
Hash DATA, 32 Bytes Hash of the block. null when its pending block.
parentHash DATA, 32 Bytes Hash of the parent block.
Nonce DATA, 8 Bytes Hash of the generated proof-of-work. null when its pending block.
sha3Uncles DATA, 32 Bytes SHA3 of the uncles data in the block.
logsBloom DATA, 256 Bytes The bloom filter for the logs of the block. null when its pending block.
transactionsRoot DATA, 32 Bytes The root of the transaction trie of the block.
stateRoot DATA, 32 Bytes The root of the final state trie of the block.
receiptsRoot DATA, 32 Bytes The root of the receipts trie of the block.
Miner DATA, 20 Bytes The address of the beneficiary to whom the mining rewards were given.
Difficulty QUANTITY Integer of the difficulty for this block.
totalDifficulty QUANTITY Integer of the total difficulty of the chain until this block.
extraData DATA The "extra data" field of this block.
Size QUANTITY Integer the size of this block in bytes.
gasLimit QUANTITY The maximum gas allowed in this block.
gasUsed QUANTITY The total used gas by all transactions in this block.
Timestamp QUANTITY The unix timestamp for when the block was collated.
Transactions Array Array of transaction objects, or 32 Bytes transaction hashes depending on the last given parameter.
Uncles Array Array of uncle hashes.

get_transaction_count_by_height

Ethereum equivalent: eth_getBlockTransactionCountByNumberParameter:

Parameters

The integer of the block number (such as 0x1b4), or the string "earliest", "latest" or "pending".

Return Values

Number of transactions, hexadecimal integer

get_transaction_by_height_and_index

Ethereum equivalent: eth_getTransactionByBlockNumberAndIndex

Parameters

Two arguments:

  • A block-numbered integer (such as 0x1b4), or the string "earliest", "latest" or "pending".
  • The index position of the transaction (for example: 0x0)

Return Values

A transaction object, or null if there is no transaction

Value Type Returns
Hash DATA, 32 Bytes Hash of the transaction.
Nonce QUANTITY The number of transactions made by the sender prior to this one.
blockHash DATA, 32 Bytes Hash of the block where this transaction was in. null when its pending.
blockNumber QUANTITY Block number where this transaction was in. null when its pending.
transactionIndex QUANTITY Integer of the transactions index position in the block. null when its pending.
From DATA, 20 Bytes Address of the sender.
To DATA, 20 Bytes Address of the receiver. null when its a contract creation transaction.
Value QUANTITY Value transferred in Wei.
gasPrice QUANTITY Gas price provided by the sender in Wei.
Gas QUANTITY Gas provided by the sender.
Input DATA The data send along with the transaction.

get_transaction_by_hash

Ethereum equivalent: eth_getTransactionByHash

Parameters

The hash value of the block (32 bytes).

Return Values

A transaction object, or null if there is no transaction

Value Type Returns
Hash DATA, 32 Bytes Hash of the transaction.
Nonce QUANTITY The number of transactions made by the sender prior to this one.
blockHash DATA, 32 Bytes Hash of the block where this transaction was in. null when its pending.
blockNumber QUANTITY Block number where this transaction was in. null when its pending.
transactionIndex QUANTITY Integer of the transactions index position in the block. null when its pending.
From DATA, 20 Bytes Address of the sender.
To DATA, 20 Bytes Address of the receiver. null when its a contract creation transaction.
Value QUANTITY Value transferred in Wei.
gasPrice QUANTITY Gas price provided by the sender in Wei.
Gas QUANTITY Gas provided by the sender.
Input DATA The data send along with the transaction.

get_balance_by_address

Ethereum equivalent: eth_getBalance

Parameters

Two parameters:

  • A 20-byte address
  • A block-numbered integer (such as 0x1b4), or the string "earliest", "latest" or "pending".

Return Values

An integer of the current balance in wei

send_transaction

Ethereum equivalent: eth_sendRawTransaction

Parameters

Signed transaction data

Return Values

The transaction hash value, if the transaction is not available, the hash is 0.