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Dynamic Gas Support (v3.4.0)
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@conor10 conor10 released this 02 May 12:06
v3.4.0
9367fe7

The 3.4 release of web3j provides some awesome new functionality.

Dynamic gas price providers

Although web3j does provide the ability to modify the gas price and limit on transactions, it was performed in a relatively inflexible manner, where a setter was used to modify it on smart contracts. web3j now supports a ContractGasProvider interface which can be used for specifying gas price and limits dynamically on a per contract call basis.

For more information refer to the docs

Thanks to @yuriymyronovych for this great enhancement.

Multi-dimensional arrays

It's now possible to work with multi-dimensional arrays in the smart contract wrappers.

Thanks to @fergarrui for this great update.

Other enhancements

There's been a significant number of community contributions these are all listed below, which is a great testament to the ever growing web3j community!

Special thanks to @fcorneli, @mushketyk and @iongchun for all of their input here.

  • Projects: ethereum-tool and ethereum-resource-adapter #517
  • fix status check on contract transactions #509
  • rename isHashed to needToHash #504
  • allow external BC lifecycle management #503
  • Read word list as stream and throw possible error earlier #498
  • Fix simultaneous requests for UNIX IPC #494
  • isStatusOK on TransactionReceipt #493
  • Transaction decoder #491
  • Compare hex transaction status as real ints not as pure strings. #483
  • Allow transaction receipts to have "null" status #479
  • getChainId on Transaction #478
  • deployRemoteCall public #475
  • Resource conflict with other libraries #468
  • Add AUR as an install option for cli #465
  • Admin build with ScheduledExecutorService #464
  • transactionHash instead of blockHash #463
  • Adds methods "miner_start" and "miner_stop" #462
  • added PollingTransactionReceiptProcessorTest (#237) #460
  • import test dependencies from testArtifacts rather than archives. #455
  • Fix JsonRpc2_0Geth protections #453
  • make V long to support larger ChainId #451
  • Throw exception if contract deployment or transaction runs out of gas #444
  • deserialize json object in error response data field #443
  • Outputs a warning when non-constant function returns a value #436
  • Adds web3j shutdown method #433
  • fix for transaction not always being present #430
  • Make "recoverFromSignature" method public #424
  • add rpc:parity_listAccounts which "Returns all addresses if Fat DB is… #407
  • adds a close method on IPC service #397
  • query for historical contract state #388
  • Expose additional behaviors from auto-generated contract classes for use with ethGetLogs #387
  • changed the ordering of nonIndexedParameter and indexParameters to ensure proper sha3 hash can be created #326
  • Improvement for UNIX domain socket #245

The following issues have been resolved:

  • 你好,你们的代码是怎么运行的?? #516
  • build contract :Empty value (0x) returned from contract #515
  • how to pass array parameters with web3j? #514
  • OOM Issue Solution !!! #512
  • web3j solidity eth transfer #507
  • How to Decoding transaction input data #489
  • why not-enough gas? #477
  • BigInteger out of int range #473
  • SendFunds this method callback is especially slow #466
  • Unable to make transaction using admin.personalSendTransaction method. #456
  • java.lang.OutOfMemoryError on android #448
  • PendingTransactionFilter: transactionHash instead of blockHash #447
  • org.web3j.protocol.exceptions.TransactionException: Error processing request: unknown transaction #446
  • Error processing transaction request: exceeds block gas limit #445
  • Exception thrown when deserializing error response from testrpc #442
  • The filter cann't work at all after the geth client shutdown and restart ? #438
  • Writing operations on a contract always throw "java.lang.ArrayIndexOutOfBoundsException" #431
  • eth_uninstallFilter invoked after a while #429
  • web3j.transactionObservable().subscribe(tx -> { #423
  • how to connect to the etheric lane on the main network #422
  • how to obtain a a wallet address all of the transaction records #421
  • mnemonic get wallet info #419
  • change the password web3j #418
  • hew to send ether in decimal e.g 0.00169 ether ? #417
  • How to get the return value of smart contract method in web3j? #416
  • filter dont give response #414
  • How to get all subscribed transaction events continuously until the program is stopped #412
  • Invalid response received: okhttp3.internal.http.RealResponseBody@41f30eb2 #411
  • A problem with transaction logs #410
  • support more parity rpc calls #406
  • java.lang.IndexOutOfBoundsException #403
  • Invalid contract wrapper generated - "EventValuesWithLog" is missing #401
  • I have a problem with connecting the main net. #394
  • closing UnixIpcService #393
  • Support for WebSocket to listen Log Events #392
  • some classes doesn't exist. #389
  • Webj code generation doesn't handle solidty functions that return arrays #384
  • Transaction receipt in 0 #383
  • How to execute miner.start() using web3j? #381
  • Deploy Newest Version of Android Library #379
  • Generated Contract Java File Error #369
  • Resource conflict with other libraries #365
  • Unlock wallet address with private key #362
  • can't find wallet file on Mac OSX #344
  • WalletUtils.generateBip39Wallet fails when library is used as .jar in a project #343
  • Restore private key from seed #340
  • No exception when transaction is pending. #336
  • SafeVarargs & OOM #312
  • java generated code do not compile due to List.class #303
  • How could I send transactions continuously with Web3j generated wrapper #296
  • Got Error:trouble processing "java/lang/SafeVarargs.class": under Android Studio after upgrade web3j lib from 2.2.1 to 3.1.1 #281
  • Add web3j shutdown method #273
  • Wrong code generation for two-dimensional arrays #271
  • Add warning to Solidity when non-constant function returns a value #257
  • Decode Transaction.input data from Contract #254
  • Not Compile Build compile ('org.web3j:core:3.1.1-android') #249
  • Estimate gas for transaction #248
  • Web3j.xxxTransactionObservable seen stop #159
  • Pending transaction filter stops listening after several minutes #144
  • auto generate warpper code problem #110
  • Throw exception if contract deployment or transaction runs out of gas #62
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