Huge News!Announcing our $40M Series B led by Abstract Ventures.Learn More
Socket
Sign inDemoInstall
Socket

substrate-interface

Package Overview
Dependencies
Maintainers
1
Alerts
File Explorer

Advanced tools

Socket logo

Install Socket

Detect and block malicious and high-risk dependencies

Install

substrate-interface

Library for interfacing with a Substrate node

  • 1.7.11
  • PyPI
  • Socket score

Maintainers
1

Python Substrate Interface

Build Status Latest Version Supported Python versions License

Description

This library specializes in interfacing with a Substrate node; querying storage, composing extrinsics, SCALE encoding/decoding and providing additional convenience methods to deal with the features and metadata of the Substrate runtime.

Documentation

Installation

pip install substrate-interface

Initialization

substrate = SubstrateInterface(url="ws://127.0.0.1:9944")

After connecting certain properties like ss58_format will be determined automatically by querying the RPC node. At the moment this will work for most MetadataV14 and above runtimes like Polkadot, Kusama, Acala, Moonbeam. For older or runtimes under development the ss58_format (default 42) and other properties should be set manually.

Quick usage

Balance information of an account

result = substrate.query('System', 'Account', ['F4xQKRUagnSGjFqafyhajLs94e7Vvzvr8ebwYJceKpr8R7T'])
print(result.value['data']['free']) # 635278638077956496

Create balance transfer extrinsic

call = substrate.compose_call(
    call_module='Balances',
    call_function='transfer',
    call_params={
        'dest': '5E9oDs9PjpsBbxXxRE9uMaZZhnBAV38n2ouLB28oecBDdeQo',
        'value': 1 * 10**12
    }
)

keypair = Keypair.create_from_uri('//Alice')
extrinsic = substrate.create_signed_extrinsic(call=call, keypair=keypair)

receipt = substrate.submit_extrinsic(extrinsic, wait_for_inclusion=True)

print(f"Extrinsic '{receipt.extrinsic_hash}' sent and included in block '{receipt.block_hash}'")

Contact and Support

For questions, please see the Substrate StackExchange, Github Discussions or reach out to us on our matrix chat group: Polkascan Technical.

License

https://github.com/polkascan/py-substrate-interface/blob/master/LICENSE

Keywords

FAQs


Did you know?

Socket

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap
  • Changelog

Packages

npm

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc