web3dart

• Refactor and cleanup deprecated methods/classes.

• Address parsing regex bug fixed.

• Minor improvements.

• Nullable topics.

• Use http package version ^1.1.0.

• EIP-1559.

• Ditch dependency on collection.

• Fix type-error to get useful RpcError.

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

• Deprecate async methods.

• Update dependencies.

• Refactor parts of the project into ERC20 and Web3_Browser

• Ensuring quality and performance.

• Adds name, symbol and decimals functions to ERC20.

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

• Support EIP-1559 transactions.

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

• Support overloaded methods for generated contracts

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

• Fix a generator crash for unexpected devdoc values

• Fix EthPrivateKey.createRandom sometimes failing

• 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

• Respect the value parameter in estimateGas

• 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.

• 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

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

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

• 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.

• 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.

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

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.

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

• More solidity types, not with encoding.

• Send and sign transactions