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This library provides a clean wrapper around all the methods exposed by a Polkadot/Substrate network client and defines all the types exposed by a node, this API provides developers the ability to query a node and interact with the Polkadot or Substrate chains using Dart.
This library is funded by Web3 Foundation via their Open Grants Program
Packages
This repo is a monorepo for polkadart and related packages.
| Packages <br>____________________ | Description <br>___________ |
|---|---|
 | The core package that provides tools to connect and interact with the Polkadot or Substrate chains. It abstracts the complexities of the network protocols and offers straightforward APIs. |
 | A command-line interface tool that generates dart language types and corresponding definitions by interpreting the chain's metadata. |
 | Manages keys and addresses for Polkadot/Substrate accounts. Contains cryptographic functions related to creating keys, signing transactions, and managing user identities on the blockchain. |
 | SCALE (Simple Concatenated Aggregate Little-Endian) is a codec used by Substrate to efficiently encode and decode data. Contains a dart implementation of this codec. |
 | Implementation of the SECP256k1 elliptic curve used in the ECDSA (Elliptic Curve Digital Signature Algorithm) for cryptographic operations, which is widely used in various blockchain platforms. |
 | Implementation of Schnorrkel-based signature scheme used in Substrate. Contains functionalities related to this scheme, such as key generation and signing. |
 | SS58 is a cryptocurrency address format used by Substrate. This package includes utilities to encode and decode these addresses. |
 | BIP39 (Bitcoin Improvement Proposal 39) pertains to the generation of mnemonic phrases for cryptographic keys. Creates human-readable phrases that map to the keys used on Substrate-based chains. |
 | Provides the necessary tools to decode the metadata provided by a Substrate blockchain node. And can be used to easily decode constants, extrinsics, events, and other data written in the chain. |
 | Provides the necessary method to decode and encode ink abi. Making it possible to interact with smart contracts at Polkadot ecosystem. |
Documentation
- Official documentation
- polkadart
- polkadart_cli
- polkadart_keyring
- polkadart_scale_codec
- secp256k1_ecdsa
- sr25519
- ss58
- substrate_bip39
- substrate_metadata
- ink_abi
Community
- Telegram - A developer group where you can share your experience and ask for help
Contributing
There are many ways for you to contribute to the growing community of Polkadart.
- Propose new features and enhancements
- Report or fix a bug
- Write and improve our documentation
- Translate our documentation
- Add new snippets and examples
- Implement new features by sending pull requets
Contributions of any kind are always welcome! ❤️
Contributors
A heartfelt thank you to all the contributors for enriching the Polkadart project! emojis
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section --> <!-- prettier-ignore-start --> <!-- markdownlint-disable --> <table> <tbody> <tr> <td align="center" valign="top" width="14.28%"><a href="https://github.com/leonardocustodio"><img src="https://avatars.githubusercontent.com/u/5619696?v=4?s=100" width="100px;" alt="Leonardo Custodio"/><br /><sub><b>Leonardo Custodio</b></sub></a><br /><a href="https://github.com/leonardocustodio/polkadart/commits?author=leonardocustodio" title="Code">💻</a> <a href="https://github.com/leonardocustodio/polkadart/commits?author=leonardocustodio" title="Tests">⚠️</a> <a href="https://github.com/leonardocustodio/polkadart/pulls?q=is%3Apr+reviewed-by%3Aleonardocustodio" title="Reviewed Pull Requests">👀</a> <a href="#question-leonardocustodio" title="Answering Questions">💬</a> <a href="#maintenance-leonardocustodio" title="Maintenance">🚧</a> <a href="#example-leonardocustodio" title="Examples">💡</a> <a 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<!-- prettier-ignore-start --> <!-- markdownlint-disable --> <!-- markdownlint-restore --> <!-- prettier-ignore-end --> <!-- ALL-CONTRIBUTORS-LIST:END -->This project follows the all-contributors specification. Contributions of any kind welcome!
License
This repository is licensed under Apache 2.0 license