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CHANGELOG.md

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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