aioeos

Async Python library for interacting with EOS.io blockchain.

Features

1. Async JSON-RPC client.
2. Signing and verifying transactions using private and public keys.
3. Serializer for basic EOS.io blockchain ABI types.
4. Helpers which provide an easy way to generate common actions, such as token transfer.

Installation

Library is available on PyPi, you can simply install it using pip.

$ pip install aioeos

Usage

Importing a private key

from aioeos import EosAccount

account = EosAccount(private_key='your key')

Transferring funds

from aioeos import EosJsonRpc, EosTransaction
from aioeos.contracts import eosio_token


rpc = EosJsonRpc(url='http://127.0.0.1:8888')
block = await rpc.get_head_block()

transaction = EosTransaction(
   ref_block_num=block['block_num'] & 65535,
   ref_block_prefix=block['ref_block_prefix'],
   actions=[
      eosio_token.transfer(
         from_addr=account.name,
         to_addr='mysecondacc1',
         quantity='1.0000 EOS',
         authorization=[account.authorization('active')]
      )
   ]
)
await rpc.sign_and_push_transaction(transaction, keys=[account.key])

Creating a new account

from aioeos import EosJsonRpc, EosTransaction, EosAuthority
from aioeos.contracts import eosio


main_account = EosAccount(name='mainaccount1', private_key='private key')
new_account = EosAccount(name='mysecondacc1')
owner = EosAuthority(
   threshold=1,
   keys=[new_account.key.to_key_weight(1)]
)

rpc = EosJsonRpc(url='http://127.0.0.1:8888')
block = await rpc.get_head_block()

await rpc.sign_and_push_transaction(
   EosTransaction(
      ref_block_num=block['block_num'] & 65535,
      ref_block_prefix=block['ref_block_prefix'],
      actions=[
            eosio.newaccount(
               main_account.name,
               new_account.name,
               owner=owner,
               authorization=[main_account.authorization('active')]
            ),
            eosio.buyrambytes(
               main_account.name,
               new_account.name,
               2048,
               authorization=[main_account.authorization('active')]
            )
      ],
   ),
   keys=[main_account.key]
)

Documentation

Docs and usage examples are available here.

Unit testing

To run unit tests, you need to bootstrap an EOS testnet node first. Use the provided ensure_eosio.sh script.

$ ./ensure_eosio.sh