@ -8,13 +8,12 @@ and [related codebases](https://github.com/harmony-one).
[Full documentation is located on Harmony's GitBook ](https://docs.harmony.one/ ) (in progress).
## Installation
```
```bash
pip install pyhmy
```
On MacOS:
Make sure you have Python3 installed, and use python3 to install pyhmy
```bash
sudo pip3 install pathlib
sudo pip3 install pyhmy
```
@ -22,13 +21,13 @@ sudo pip3 install pyhmy
## Development
Clone the repository and then run the following:
```
```bash
make install
```
## Running tests
Before you can run tests, you need the python dependencies (`make install`), `docker` and `go` installed to quickly run a local blockchain with staking enabled (detailed instructions [here ](https://github.com/harmony-one/harmony/blob/main/README.md )):
```
```bash
mkdir -p $(go env GOPATH)/src/github.com/harmony-one
cd $(go env GOPATH)/src/github.com/harmony-one
git clone https://github.com/harmony-one/mcl.git
@ -39,26 +38,22 @@ make test-rpc
```
Once the terminal displays `=== FINISHED RPC TESTS ===` , use another shell to run the following tests
```
```bash
make test
```
Or directly with `pytest` (reference [here ](https://docs.pytest.org/en/latest/index.html ) for more info):
```
```bash
py.test tests
```
## Releasing
You can release this library with the following command (assuming you have the credentials to upload):
```
```bash
make release
```
## Usage
```
```py
test_net = 'https://api.s0.b.hmny.io' # this is shard 0
test_net_shard_1 = 'https://api.s1.b.hmny.io'
test_address = 'one18t4yj4fuutj83uwqckkvxp9gfa0568uc48ggj7'
@ -67,11 +62,11 @@ main_net = 'https://rpc.s0.t.hmny.io'
main_net_shard_1 = 'https://rpc.s1.t.hmny.io'
```
#### accounts
```
```py
from pyhmy import account
```
##### Balance / account related information
````
````py
balance = account.get_balance(test_address, endpoint=test_net) # on shard 0, in ATTO
total_balance = account.get_total_balance(test_address, endpoint=test_net) # on all shards, in ATTO
balance_by_shard = account.get_balance_on_all_shards(test_address, endpoint=test_net) # list of dictionaries with shard and balance as keys
@ -80,7 +75,7 @@ latest_balance = account.get_balance_by_block(test_address, block_num='latest',
account_nonce = account.get_account_nonce(test_address, block_num='latest', endpoint=test_net)
````
##### Transaction counts
````
````py
tx_count = account.get_transactions_count(test_address, tx_type='ALL', endpoint=test_net)
sent_tx_count = account.get_transactions_count(test_address, tx_type='SENT', endpoint=test_net)
received_tx_count = account.get_transactions_count(test_address, tx_type='RECEIVED', endpoint=test_net)
@ -88,60 +83,60 @@ legacy_tx_count = account.get_transaction_count(test_address, block_num='latest'
legacy_tx_count_pending = account.get_transaction_count(test_address, block_num='pending', endpoint=test_net)
````
##### Staking transaction counts
````
````py
stx_count = account.get_staking_transactions_count(test_address, tx_type='ALL', endpoint=test_net)
sent_stx_count = account.get_staking_transactions_count(test_address, tx_type='SENT', endpoint=test_net)
received_stx_count = account.get_staking_transactions_count(test_address, tx_type='RECEIVED', endpoint=test_net)
````
##### Transaction history
To get a list of hashes, use `include_full_tx=False`
````
````py
first_100_tx_hashes = account.get_transaction_history(test_address, page=0, page_size=100, include_full_tx=False, endpoint=test_net)
````
To get the next 100 transactions, change the `page`
```
```py
next_100_tx_hashes = account.get_transaction_history(test_address, page=1, page_size=100, include_full_tx=False, endpoint=test_net)
```
To get a list of full transaction details, use `include_full_tx=True` (see `get_transaction_by_hash` for the reply structure
````
````py
first_3_full_tx = account.get_transaction_history(test_address, page=0, page_size=3, include_full_tx=True, endpoint=test_net)
````
To get newest transactions, use `order='DESC'`
````
````py
last_3_full_tx = account.get_transaction_history(test_address, page=0, page_size=3, include_full_tx=True, order='DESC', endpoint=test_net)
````
To change the transaction type (SENT / RECEIVED / ALL), pass the `tx_type` parameter
```
```py
first_100_received_tx_hashes = account.get_transaction_history(test_address, page=0, page_size=100, include_full_tx=False, tx_type='RECEIVED', endpoint=test_net)
```
##### Staking transaction history
To get a list of staking hashes, use `include_full_tx=False`
````
````py
first_100_stx_hashes = account.get_staking_transaction_history(test_address, page=0, page_size=100, include_full_tx=False, endpoint=test_net)
````
To get the next 100 staking transactions, change the `page`
```
```py
next_100_stx_hashes = account.get_staking_transaction_history(test_address, page=1, page_size=100, include_full_tx=False, endpoint=test_net)
```
To get a list of full staking transaction details, use `include_full_tx=True` (see `get_transaction_by_hash` for the reply structure
````
````py
first_3_full_stx = account.get_staking_transaction_history(test_address, page=0, page_size=3, include_full_tx=True, endpoint=test_net)
````
To get newest staking transactions, use `order='DESC'`
````
````py
last_3_full_stx = account.get_staking_transaction_history(test_address, page=0, page_size=3, include_full_tx=True, order='DESC', endpoint=test_net)
````
To change the staking transaction type (SENT / RECEIVED / ALL), pass the `tx_type` parameter
```
```py
first_100_received_stx_hashes = account.get_staking_transaction_history(test_address, page=0, page_size=100, include_full_tx=False, tx_type='RECEIVED', endpoint=test_net)
```
#### Blockchain
```
```py
from pyhmy import blockchain
from decimal import Decimal
```
##### Node / network information
```
```py
chain_id = blockchain.chain_id(test_net) # chain type, for example, mainnet or testnet
node_metadata = blockchain.get_node_metadata(test_net) # metadata about the endpoint
peer_info = blockchain.get_peer_info(test_net) # peers of the endpoint
@ -154,13 +149,13 @@ prestaking_epoch_number = blockchain.get_prestaking_epoch(test_net)
staking_epoch_number = blockchain.get_staking_epoch(test_net)
```
##### Sharding information
```
```py
shard_id = blockchain.get_shard(test_net) # get shard id of the endpoint
sharding_structure = blockchain.get_sharding_structure(test_net) # list of dictionaries, each representing a shard
last_cross_links = blockchain.get_last_cross_links(test_net) # list of dictionaries for each shard except test_net
```
##### Current network status
```
```py
leader_address = blockchain.get_leader_address(test_net)
is_last_block = blockchain.is_last_block(block_num=0, test_net)
last_block_of_epoch5 = blockchain.epoch_last_block(block_num=5, test_net)
@ -171,7 +166,7 @@ current_epoch = blockchain.get_current_epoch(test_net)
gas_price = blockchain.get_gas_price(test_net) # this returns 1 always
```
##### Block headers
```
```py
latest_header = blockchain.get_latest_header(test_net) # header contains hash, number, cross links, signature, time, etc (see get_latest_header for a full list)
latest_hash = latest_header['blockHash']
latest_number = latest_header['blockNumber']
@ -181,57 +176,57 @@ chain_headers = blockchain.get_latest_chain_headers(test_net_shard_1) # chain h
##### Blocks
###### By block number
Fetch the barebones information about the block as a dictionary
```
```py
latest_block = blockchain.get_block_by_number(block_num='latest', endpoint=test_net)
```
Fetch a block with full information (`full_tx=True`) for each transaction in the block
```
```py
block = blockchain.get_block_by_number(block_num=9017724, full_tx=True, include_tx=True, include_staking_tx=True, endpoint=test_net)
```
Fetch a block and only staking transactions (`include_tx=False, include_staking_tx=True`) for the block
```
```py
block = blockchain.get_block_by_number(block_num='latest', include_tx=False, include_staking_tx=True, endpoint=test_net)
```
Fetch block signer addresses (`include_signers=True`) as a list
```
```py
signers = blockchain.get_block_by_number(block_num=9017724, include_signers=True, endpoint=test_net)['signers']
```
Or, alternatively, use the direct `get_block_signers` method:
```
```py
signers = blockchain.get_block_signers(block_num=9017724, endpoint=test_net)
```
Fetch the public keys for signers
```
```py
signers_keys = blockchain.get_block_signers_keys(block_num=9017724, endpoint=test_net)
```
Check if an address is a signer for a block
```
```py
is_block_signer = blockchain.is_block_signer(block_num=9017724, address='one1yc06ghr2p8xnl2380kpfayweguuhxdtupkhqzw', endpoint=test_net)
```
Fetch the number of blocks signed by a particular validator for the last epoch
```
```py
number_signed_blocks = blockchain.get_signed_blocks(address='one1yc06ghr2p8xnl2380kpfayweguuhxdtupkhqzw', endpoint=test_net)
```
Fetch a list of validators and their public keys for specific epoch number
```
```py
validators = blockchain.get_validators(epoch=12, endpoint=test_net)
validator_keys = blockchain.get_validator_keys(epoch=12, endpoint=test_net)
```
Fetch number of transactions
```
```py
tx_count = blockchain.get_block_transaction_count_by_number(block_num='latest', endpoint=test_net)
```
Fetch number of staking transactactions
```
```py
stx_count = blockchain.get_block_staking_transaction_count_by_number(block_num='latest', endpoint=test_net)
```
Fetch a list of blocks using the block numbers
```
```py
blocks = blockchain.get_blocks(start_block=0, end_block=2, full_tx=False, include_tx=False, include_staking_tx=False, include_signers=False, endpoint=test_net)
```
###### By block hash
Most of the functions described above can be applied for fetching information about a block whose hash is known, for example:
```
```py
block_hash = '0x44fa170c25f262697e5802098cd9eca72889a637ea52feb40c521f2681a6d720'
block = blockchain.get_block_by_hash(block_hash=block_hash, endpoint=test_net)
block_with_full_tx = blockchain.get_block_by_hash(block_hash=block_hash, full_tx=True, include_tx=True, include_staking_tx=True, endpoint=test_net)
@ -241,13 +236,13 @@ tx_count = blockchain.get_block_transaction_count_by_hash(block_hash=block_hash,
stx_count = blockchain.get_block_staking_transaction_count_by_hash(block_hash=block_hash, endpoint=test_net)
```
#### Staking
```
```py
from pyhmy import staking
validator_addr = 'one1xjanr7lgulc0fqyc8dmfp6jfwuje2d94xfnzyd'
delegator_addr = 'one1y2624lg0mpkxkcttaj0c85pp8pfmh2tt5zhdte'
```
##### Validation
```
```py
all_validators = staking.get_all_validator_addresses(endpoint=test_net) # list of addresses
validator_information = staking.get_validator_information(validator_addr, endpoint=test_net) # dict with all info
validator_information_100 = staking.get_all_validator_information(page=0, endpoint=test_net) # for all use page=-1
@ -260,7 +255,7 @@ self_delegation = staking.get_validator_self_delegation(validator_addr, endpoint
total_delegation = staking.get_validator_total_delegation(validator_addr, endpoint=test_net)
```
##### Delegation
```
```py
delegation_information = staking.get_all_delegation_information(page=-1, endpoint=test_net)
delegations_by_delegator = staking.get_delegations_by_delegator(delegator_addr, test_net)
delegations_by_delegator_at_block = staking.get_delegations_by_delegator_by_block_number(delegator_addr, block_num=9017724, endpoint=test_net)
@ -269,7 +264,7 @@ avail_redelegation_balance = staking.get_available_redelegation_balance(delegato
delegations_by_validator = staking.get_delegations_by_validator(validator_addr, test_net) # list of delegations made to this validator, each a dictionary
```
##### Network
```
```py
utility_metrics = staking.get_current_utility_metrics(test_net)
network_info = staking.get_staking_network_info(test_net)
super_committees = staking.get_super_committees(test_net)
@ -280,13 +275,13 @@ median_stake_snapshot = staking.get_raw_median_stake_snapshot(test_net)
```
##### Validator class
Instantiate a validator object and load it from the chain
```
```py
from pyhmy.validator import Validator
validator = Validator(validator_addr)
validator.load_from_blockchain(test_net)
```
Create a new validator object and load from dictionary
```
```py
from pyhmy.numbers import convert_one_to_atto
validator = Validator('one1a0x3d6xpmr6f8wsyaxd9v36pytvp48zckswvv9')
info = {
@ -306,7 +301,7 @@ info = {
validator.load(info)
```
Sign a validator creation transaction
```
```py
signed_create_tx_hash = validator.sign_create_validator_transaction(
nonce = 2,
gas_price = 1,
@ -315,7 +310,7 @@ signed_create_tx_hash = validator.sign_create_validator_transaction(
chain_id = None).rawTransaction.hex()
```
To edit validator, change its parameters using the `setter` functions, for example, `validator.set_details` , except the `rate` , `bls_keys_to_add` and `bls_keys_to_remove` which can be passed to the below function:
```
```py
signed_edit_tx_hash = validator.sign_edit_validator_transaction(
nonce = 2,
gas_price = 1,
@ -328,11 +323,11 @@ signed_edit_tx_hash = validator.sign_edit_validator_transaction(
```
### Transactions
```
```py
from pyhmy import transaction
```
##### Pool
```
```py
pending_tx = transaction.get_pending_transactions(test_net)
pending_stx = transaction.get_pending_staking_transactions(test_net)
tx_error_sink = transaction.get_transaction_error_sink(test_net)
@ -341,7 +336,7 @@ pool_stats = transaction.get_pool_stats(test_net)
pending_cx_receipts = transaction.get_pending_cx_receipts(test_net)
```
##### Fetching transactions
```
```py
tx_hash = '0x500f7f0ee70f866ba7e80592c06b409fabd7ace018a9b755a7f1f29e725e4423'
block_hash = '0xb94bf6e8a8a970d4d42dfe42f7f231af0ff7fd54e7f410395e3b306f2d4000d4'
tx = transaction.get_transaction_by_hash(tx_hash, test_net) # dict with tx-level info like from / to / gas
@ -350,7 +345,7 @@ tx_from_block_number = transaction.get_transaction_by_block_number_and_index(901
tx_receipt = transaction.get_transaction_receipt(tx_hash, test_net)
```
##### Fetching staking transactions
```
```py
stx_hash = '0x3f616a8ef34f111f11813630cdcccb8fb6643b2affbfa91d3d8dbd1607e9bc33'
block_hash = '0x294dc88c7b6f3125f229a3cfd8d9b788a0bcfe9409ef431836adcd83839ba9f0' # block number 9018043
stx = transaction.get_staking_transaction_by_hash(stx_hash, test_net)
@ -358,30 +353,30 @@ stx_from_block_hash = transaction.get_staking_transaction_by_block_hash_and_inde
stx_from_block_number = transaction.get_staking_transaction_by_block_number_and_index(9018043, tx_index=0, endpoint=test_net)
```
##### Cross shard transactions
```
```py
cx_hash = '0xd324cc57280411dfac5a7ec2987d0b83e25e27a3d5bb5d3531262387331d692b'
cx_receipt = transaction.get_cx_receipt_by_hash(cx_hash, main_net_shard_1) # the shard which receives the tx
tx_resent = transaction.resend_cx_receipt(cx_hash, main_net) # beacon chain
```
##### Sending transactions
Sign it with your private key and use `send_raw_transaction`
```
```py
from pyhmy import signing
tx = {
'chainId': 2,
'from': 'one18t4yj4fuutj83uwqckkvxp9gfa0568uc48ggj7',
'gas': 6721900,
'gasPrice': 1000000000,
'nonce': 6055,
'shardID': 0,
'to': 'one1ngt7wj57ruz7kg4ejp7nw8z7z6640288ryckh9,
'toShardID': 0,
'value': 500000000000000000000
'chainId': 2,
'from': 'one18t4yj4fuutj83uwqckkvxp9gfa0568uc48ggj7',
'gas': 6721900,
'gasPrice': 1000000000,
'nonce': 6055,
'shardID': 0,
'to': 'one1ngt7wj57ruz7kg4ejp7nw8z7z6640288ryckh9' ,
'toShardID': 0,
'value': 500000000000000000000
}
transaction.send_raw_transaction(signing.sign_transaction(tx, '01F903CE0C960FF3A9E68E80FF5FFC344358D80CE1C221C3F9711AF07F83A3BD').rawTransaction.hex(), test_net)
```
A similar approach can be followed for staking transactions
```
```py
from pyhmy import staking_structures, staking_signinge
tx = {
'chainId': 2,
@ -394,31 +389,31 @@ tx = {
transaction.send_raw_staking_transaction(staking_signing.sign_staking_transaction(tx, private_key = '01F903CE0C960FF3A9E68E80FF5FFC344358D80CE1C221C3F9711AF07F83A3BD').rawTransaction.hex(), test_net)
```
### Contracts
```
```py
from pyhmy import contract
from pyhmy.util import convert_one_to_hex
contract_addr = 'one1rcs4yy4kln53ux60qdeuhhvpygn2sutn500dhw'
```
Call a contract without saving state
```
```py
from pyhmy import numbers
result = contract.call(convert_one_to_hex(contract_addr), 'latest', value=hex(int(numbers.convert_one_to_atto(5)))
, gas_price=hex(1), gas=hex(100000), endpoint=test_net)
```
Estimate gas required for a smart contract call
```
```py
estimated_gas = contract.estimate_gas(convert_one_to_hex(contract_addr), endpoint=test_net)
```
Fetch the byte code of the contract
```
```py
byte_code = contract.get_code(convert_one_to_hex(contract_addr), 'latest', endpoint=test_net)
```
Get storage in the contract at `key`
```
```py
storage = contract.get_storage_at(convert_one_to_hex(contract_addr), key='0x0', block_num='latest', endpoint=test_net)
```
Calling a function on a contract needs the contract ABI. The ABI can be obtained by compiling the contract.
```
```py
from web3 import Web3
from web3 import providers
from pyhmy.util import convert_one_to_hex
@ -428,7 +423,7 @@ lottery = w3.eth.contract(abi=contract_abi, address=convert_one_to_hex('one1rcs4
lottery.functions.getPlayers().call()
```
To actually participate in a contract, you can sign a transaction from your account to it.
```
```py
from pyhmy import signing
contract_addr = 'one1rcs4yy4kln53ux60qdeuhhvpygn2sutn500dhw'
tx = {
@ -445,7 +440,7 @@ tx = {
tx_hash = transaction.send_raw_transaction(signing.sign_transaction(tx, '01F903CE0C960FF3A9E68E80FF5FFC344358D80CE1C221C3F9711AF07F83A3BD').rawTransaction.hex(), test_net)
```
To deploy a contract, sign a transaction from your account without a `to` field and with the byte code as `data` and send it.
```
```py
from pyhmy import signing
from pyhmy import transaction
contract_tx = {
@ -463,11 +458,11 @@ ctx_hash = transaction.send_raw_transaction(signing.sign_transaction(contract_tx
contract_address = transaction.get_transaction_receipt(ctx_hash, test_net)['contractAddress']
```
### Signing transactions
```
```py
from pyhmy import signing
```
Create a `transaction_dict` with the parameters, and supply your private key to sign (but not submit) a transaction. A signed transaction can be submitted using `transaction.sendRawTransaction` .
```
```py
transaction_dict = {
'nonce': 2,
'gasPrice': 1,
@ -482,7 +477,7 @@ signed_tx = signing.sign_transaction(transaction_dict, private_key = '4edef2c249
signed_hash = signed_tx.rawTransaction.hex()
```
For a transaction with is Ethereum-like, the `shardID` and `toShardID` are optional, which implies that the transaction is not cross-shard.
```
```py
transaction_dict = {
'nonce': 2,
'gasPrice': 1,
@ -494,7 +489,7 @@ signed_tx = signing.sign_transaction(transaction_dict, private_key = '4edef2c249
signed_hash = signed_tx.rawTransaction.hex()
```
The `chainId` parameter is also optional, and [according to Ethereum ](https://github.com/ethereum/eth-account/blob/00e7b10005c5fa7090086fcef37a76296c524e17/eth_account/_utils/transactions.py#L122 ), it should not be passed if "you want a transaction that can be replayed across networks." A full list of the possible values of `chainId` is provided below. You can pass either the `str` or the `int` . The RPC API may, however, reject the transaction, which is why it is recommended to pass either `1` or `2` for `mainnet` and `testnet` respectively.
```
```py
Default = 0,
EthMainnet = 1,
Morden = 2,
@ -513,11 +508,11 @@ HmyLocal = 2,
HmyPangaea = 3,
```
### Signing staking transactions
```
```py
from pyhmy import staking_structures, staking_signing
```
To sign a transaction to collect rewards, supply the dictionary containing the `delegatorAddress` and the private key.
```
```py
transaction_dict = {
'directive': staking_structures.Directive.CollectRewards,
'delegatorAddress': 'one1a0x3d6xpmr6f8wsyaxd9v36pytvp48zckswvv9',
@ -528,7 +523,7 @@ transaction_dict = {
signed_tx = staking_signing.sign_staking_transaction(transaction_dict, private_key = '4edef2c24995d15b0e25cbd152fb0e2c05d3b79b9c2afd134e6f59f91bf99e48')
```
To sign a transaction to delegate or undelegate, supply the dictionary containing the `delegatorAddress` , the `validatorAddress` , the `amount` to delegate or undelegate, and the private key.
```
```py
transaction_dict = {
'directive': staking_structures.Directive.Delegate,
'delegatorAddress': 'one1a0x3d6xpmr6f8wsyaxd9v36pytvp48zckswvv9',
@ -553,11 +548,11 @@ signed_tx = staking_signing.sign_staking_transaction(transaction_dict, '4edef2c2
For validator-related transactions, see the [section on the Validator class ](#validator-class ).
## Keeping your private key safe
You need `eth-keyfile` installed
```
```bash
pip install eth-keyfile
```
In a `Python` shell, you can save or load the key into / from a key file.
```
```py
import eth_keyfile
from eth_utils import to_bytes, to_hex
import json
Max Mustermann
4 years ago