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Dart library to connect to Ethereum clients. Send transactions and interact with smart contracts!

2.7.3 #

  • Address parsing regex bug fixed.

2.7.2 #

  • Minor improvements.

2.7.1 #

  • Nullable topics.

2.7.0 #

  • Use http package version ^1.1.0.

2.6.1 #

  • EIP-1559.

2.5.3 #

  • Ditch dependency on collection.

2.5.2 #

  • Fix type-error to get useful RpcError.

2.5.1 #

  • Remove build.yaml that was pointing to obsolete builder.

2.5.0 #

  • Deprecate async methods.

2.4.1 #

  • Update dependencies.

2.4.0 #

2.3.5 #

  • Ensuring quality and performance.

2.3.4 #

  • Adds name, symbol and decimals functions to ERC20.

2.3.3 #

  • Fix signing legacy transactions without gas and without a client.

2.3.2 #

  • Support EIP-1559 transactions.

2.3.1 #

  • Fix the Web3Client.custom constructor not setting all required fields.

2.3.0 #

  • Support overloaded methods for generated contracts

2.2.0 #

  • Add EthPrivateKey.publicKey getters
  • Fix window.ethereum always being non-null, even if no provider is available

2.1.4 #

  • Fix a generator crash for unexpected devdoc values

2.1.3 #

  • Fix EthPrivateKey.createRandom sometimes failing

2.1.2 #

  • Fix contract generation for events
  • Don't generate a method for the fallback method
  • Fix parsing contract abis in the presence of unknown function types

2.1.1 #

  • Respect the value parameter in estimateGas

2.1.0 #

  • Add package:web3dart/browser.dart, a library for using this package in Ethereum-enabled browsers.
  • Add code generator for smart contracts. To use it, just put the generated abi json into a .abi.json file, add a dev-dependency on build_runner and run (flutter | dart) pub run build_runner build.
  • Add the package:web3dart/contracts/erc20.dart library for interacting with an ERC-20 smart contract.

2.0.0 #

  • Breaking: Renamed TransactionReceipt.fromJson to TransactionReceipt.fromMap
  • Breaking: Removed the backgroundIsolate option from Web3Client. For background isolates, instead use runner: await IsolateRunner.spawn() from package:isolate.
  • Breaking: Changed TransactionInformation.r and TransactionInformation.s from Uint8List to BigInt
  • Breaking: When not setting the maxGas argument, this library will now estimate it instead of using a fixed upper bound.
  • Migrate to null safety
  • Add ecRecover and isValidSignature to verify messages. Thanks, brickpop!
  • Add compressPublicKey and decompressPublicKey to obtain a compressed or expanded version of keys.
  • Add getLogs method to Web3Client. Thanks, jmank88!
  • Add sendRawTransaction to send a raw, signed transaction.
  • Fix hexToDartInt not actually parsing hex (#81)
  • Support for background isolates is temporarily disabled until package:isolate migrates to null safety

1.2.3 #

  • include a 0x for hex data in eth_estimateGas * thanks, @Botary

1.2.2 #

  • Fixed a bug when decoding negative integers (#73)

1.2.0 #

  • Added estimateGas method on Web3Client to estimate the amount of gas that would be used by a transaction.

In 1.2.1, the atBlock parameter on estimateGas was deprecated and will be ignored.

1.1.1, 1.1.1+1 #

  • Fix parsing transaction receipts when the block number is not yet available. Thanks to @chart21 for the fix.
  • Fix a typo that made it impossible to load the coinbase address. Thanks to @modulovalue for the fix.

1.1.0 #

  • Added getTransactionReceipt to get more detailed information about a transaction, including whether it was executed successfully or not.

1.0.0 #

Basically a complete rewrite of the library * countless bug fixes, a more fluent and consistent api and more features:

  • experimental api to perform expensive operations in a background isolate. Set enableBackgroundIsolate to true when creating a Web3Client to try it out.
  • Events! Use addedBlocks, pendingTransactions and events for auto-updating streams.
  • The client now has a dispose() method which should be called to stop the background isolate and terminate all running streams.

This version contains breaking changes! Here is an overview listing some of them.

| Before | Updated API | | :------------* | -----:| | Creating credentials via Credentials.fromPrivateKeyHex | Use the EthPrivateKey class or, even better, client.credentialsFromPrivateKey | | Sending transactions or calling contract functions | The api has been changed to just a single methods instead of a transaction builder. See the examples for details. | | Low-level cryptographic operations like signing, hashing and converting hex <-> byte array <-> integer | Not available in the core library. Import package:web3dart/crypto.dart instead |

If you run into problems after updating, please create an issue.

0.4.4 #

  • Added getTransactionByHash method * thank you, maxholman!
  • Allow a different N parameter for scrypt when creating new wallets.

0.4.0 #

  • New APIs allowing for a simpler access to wallets, credentials and addresses
  • More examples in the README

0.2.1 #

  • More solidity types, not with encoding.

0.2 #

  • Send transactions and call messages from smart contracts on the Blockchain.

0.1 #

  • Create new Ethereum accounts

0.0.2 #

  • Send and sign transactions

0.0.1 #

  • Initial version, created by Stagehand
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Dart library to connect to Ethereum clients. Send transactions and interact with smart contracts!

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MIT (license)


async, convert, eip1559, eip55, http, json_rpc_2, pointycastle, sec, stream_channel, stream_transform, typed_data, uuid, wallet


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