snarkos-rpc

In Aleo, full nodes run a JSON-RPC server to enable API calls for fetching data and interacting with peers connected to the network.

RPC Port

-rpc-port 3030

The default RPC port is 3030. This can be specified with the -rpc-port flag when starting a full node.

Authentication for Private RPC Endpoints

-rpc-username {USERNAME} -rpc-password {PASSWORD}

The RPC server exposes protected RPC endpoints for account specific operations, such as creating an account, creating a transaction, and fetching record commitments. RPC requests to protected RPC endpoints can be optionally guarded with an authentication header.

To enable this authentication layer, provide the authentication credentials to the -rpc-username and -rpc-password flags when booting up a full node.

decoderawtransaction

Returns information about a transaction from serialized transaction bytes.

Arguments

Parameter	Type	Required	Description
transaction_bytes	string	Yes	The raw transaction hex to decode

Response

Parameter	Type	Description
txid	string	The transaction id
size	number	The size of the transaction in bytes
old_serial_numbers	array	The list of old record serial numbers
new_commitments	array	The list of new record commitments
memo	string	The transaction memo
network_id	number	The transaction network id
digest	string	The merkle tree digest
transaction_proof	string	The transaction zero knowledge proof
program_commitment	string	The program verification key commitment
local_data_root	string	The local data root
value balance	number	The transaction value balance
signatures	array	The list of transaction signatures
transaction_metadata	object	The transaction metadata

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "decoderawtransaction", "params": ["transaction_hexstring"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getbestblockhash

Returns the block hash of the head of the best valid chain.

Arguments

None

Response

Parameter	Type	Description
result	string	The block hash of the most recent valid block

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getbestblockhash", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getblock

Returns information about a block from a block hash.

Arguments

Parameter	Type	Required	Description
block_hash	string	Yes	The block hash of the requested block

Response

Parameter	Type	Description
confirmations	number	The number of confirmations for this block
difficulty_target	number	The difficulty of the block
hash	string	The block hash (same as provided)
height	number	The block height
merkle_root	number	The Merkle root of the transactions in the block
nonce	number	The nonce for solving the PoSW puzzle
pedersen_merkle_root	number	The Merkle root of the transactions in the block using a Pedersen hash
previous_block_hash	string	The block hash of the parent block
proof	string	The Proof of Succinct Work
size	number	The size of the block in bytes
time	number	The block time
transactions	array	The list of transaction ids included in the block

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getblock", "params": ["caf49293d36f0215cfb3296dbc871a0ef5e5dcfc61f91cd0c9ac2c730f84d853"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getblockcount

Returns the number of blocks in the best valid chain.

Arguments

None

Response

Parameter	Type	Description
result	string	The number of blocks in the best valid chain

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getblockcount", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getblockhash

Returns the block hash of a block at the given block height in the best valid chain.

Arguments

Parameter	Type	Required	Description
block_height	string	Yes	The block height of the requested block hash

Response

Parameter	Type	Description
result	string	The block hash of the block at the given block height

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getblockhash", "params": [100] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getblocktemplate

Returns the current mempool and consensus information known by this node.

Arguments

None

Response

Parameter	Type	Description
previous_block_hash	string	The hash of current highest block
block_height	number	The height of the next block
time	number	The current timestamp
difficulty_target	number	The block difficulty target
transactions	array	The list of raw transactions to include in the block
coinbase_value	number	The amount spendable by the coinbase transaction

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getblocktemplate", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getconnectioncount

Returns the number of connected peers this node has.

Arguments

None

Response

Parameter	Type	Description
result	number	The number of connected nodes

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getconnectioncount", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getpeerinfo

Returns the node's connected peers.

Arguments

None

Response

Parameter	Type	Description
peers	array	The list of connected peer IPs

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getpeerinfo", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/

getrawtransaction

Returns hex encoded bytes of a transaction from its transaction id.

Arguments

Parameter	Type	Required	Description
transaction_id	string	Yes	The transaction id of the requested transaction hex

Response

Parameter	Type	Description
result	string	The hex-encoded transaction bytes

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getrawtransaction", "params": ["83fc73b8a104d7cdabe514ec4ddfeb7fd6284ff8e0a757d25d8479ed0ffe608b"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

gettransactioninfo

Returns information about a transaction from a transaction id.

Arguments

Parameter	Type	Required	Description
transaction_id	string	Yes	The transaction id of the requested transaction info

Response

Parameter	Type	Description
txid	string	The transaction id
size	number	The size of the transaction in bytes
old_serial_numbers	array	The list of old record serial numbers
new_commitments	array	The list of new record commitments
memo	string	The transaction memo
digest	string	The merkle tree digest
transaction_proof	string	The transaction zero knowledge proof
program_commitment	string	The program verification key commitment
local_data_root	string	The local data root
value balance	number	The transaction value balance
signatures	array	The list of transaction signatures
transaction_metadata	object	The transaction metadata

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "gettransactioninfo", "params": ["83fc73b8a104d7cdabe514ec4ddfeb7fd6284ff8e0a757d25d8479ed0ffe608b"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

sendtransaction

Send raw transaction bytes to this node to be added into the mempool. If valid, the transaction will be stored and propagated to all peers.

Arguments

Parameter	Type	Required	Description
transaction_bytes	string	Yes	The raw transaction hex to broadcast

Response

Parameter	Type	Description
result	string	The transaction id of the sent transaction

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "sendtransaction", "params": ["transaction_hexstring"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

validaterawtransaction

Validate and return if the transaction is valid.

Arguments

Parameter	Type	Required	Description
transaction_bytes	string	Yes	The raw transaction hex to validate

Response

Parameter	Type	Description
result	boolean	Check that the transaction is valid

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "validaterawtransaction", "params": ["transaction_hexstring"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

createaccount

Generate a new account private key and its corresponding account address.

Protected Endpoint

Yes

Arguments

None

Response

Parameter	Type	Description
private_key	string	An Aleo account private key
address	string	An Aleo account address

Example

curl --user username:password --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "createaccount", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/ 

createrawtransaction

Create a new transaction, returning the encoded transaction and the new records.

Protected Endpoint

Yes

Arguments

Parameter	Type	Required	Description
old_records	array	Yes	An array of hex encoded records to be spent
old_account_private_keys	array	Yes	An array of private keys authorized to spend the records
recipients	array	Yes	The array of transaction recipient objects
memo	string	No	The transaction memo
network_id	number	Yes	The network id of the transaction

Transaction Recipient Object

Parameter	Type	Description
address	string	The recipient address
value	number	The amount sent to the recipient

Response

Parameter	Type	Description
encoded_transaction	string	The hex encoding of the generated transaction
encoded_records	array	The hex encodings of the generated records

Example

curl --user username:password --data-binary '{ 
    "jsonrpc":"2.0",
    "id": "1",
    "method": "createrawtransaction",
    "params": [
       {
        "old_records": ["record_hexstring"],
        "old_account_private_keys": ["private_key_string"],
        "recipients": [{
                "address": "address_string",
                "amount": amount
        }],
        "memo": "memo_hexstring",
        "network_id": 0
       }
    ]
}' -H 'content-type: application/json' http://127.0.0.1:3030/

decoderecord

Returns information about a record from serialized record hex.

Arguments

Parameter	Type	Required	Description
record_bytes	string	Yes	The raw record hex to decode

Response

Parameter	Type	Description
owner	string	The owner of the record
is_dummy	number	The height of the next block
value	number	The current timestamp
payload	object	The record payload
birth_program_id	string	The birth program representation
death_program_id	string	The death program representation
serial_number_nonce	string	The serial number nonce
commitment	string	The record commitment
commitment_randomness	string	The record commitment randomness

Example

curl --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "decoderecord", "params": ["record_hexstring"] }' -H 'content-type: application/json' http://127.0.0.1:3030/

decryptrecord

Decrypts the encrypted record and returns the hex encoded bytes of the record.

Arguments

Parameter	Type	Required	Description
encrypted_record	string	Yes	The encrypted record
account_view_key	string	Yes	The account view key used to decrypt the ciphertext

Response

Parameter	Type	Description
result	string	The hex-encoded record bytes

Example

curl --user username:password --data-binary '{ 
    "jsonrpc":"2.0",
    "id": "1",
    "method": "decryptrecord",
    "params": [
       {
        "encrypted_record": "encrypted_record_string",
        "account_view_key": "account_view_key_string"
       }
    ]
}' -H 'content-type: application/json' http://127.0.0.1:3030/

getrawrecord

Returns the hex encoded bytes of a record from its record commitment.

Protected Endpoint

Yes

Arguments

Parameter	Type	Required	Description
record_commitment	string	Yes	The record commitment

Response

Parameter	Type	Description
result	string	The hex-encoded record bytes

Example

curl --user username:password --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getrawrecord", "params": ["86be61d5f3bd795e31615d6834efefca01ad023d57c0383e2231e094bcabfc05"] }' -H 'content-type: application/json' http://127.0.0.1:3030/ 

getrecordcommitmentcount

Returns the number of record commitments that are stored on the full node.

Protected Endpoint

Yes

Arguments

None

Response

Parameter	Type	Description
result	number	The number of stored record commitments

Example

curl --user username:password --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getrecordcommitmentcount", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/ 

getrecordcommitments

Returns a list of record commitments that are stored on the full node.

Protected Endpoint

Yes

Arguments

None

Response

Parameter	Type	Description
result	array	The list of stored record commitments

Example

curl --user username:password --data-binary '{"jsonrpc": "2.0", "id":"documentation", "method": "getrecordcommitments", "params": [] }' -H 'content-type: application/json' http://127.0.0.1:3030/ 

Contributing

How to Update this README

This README is auto-generated during continuous integration. To update this README, submit a pull request updating the appropriate Markdown file in documentation and the configuration file.