v0.6.0

What's New

➡️ Create Hedera files.
➡️ Delete a smart contract instance.
➡️ Call a local smart contract function.

Notes

There are several files in the repo that are not included in the build and should not used. These files both header (.h) and source (.cc) include:

• AccountStakersQuery
• ContractExecuteTransaction
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• FileAppendTransaction
• FileContentsQuery

Added

• Implement ContractCallQuery by @rwalworth in #268
• Implement ContractDeleteTransaction by @rwalworth in #272
• Hash mismatch when pulling v0.36 C++ Hedera protobufs by @rwalworth in #277
• Implement FileCreateTransaction by @rwalworth in #274

Full Changelog: v0.5.0...v0.6.0

v0.5.0

What's New

➡️ Add new functions to Client - forMainnet(), forPreviewnet() and forNetwork()
➡️ Create Hedera smart contracts
➡️ More functionalities for Accounts - AccountInfoQuery, AccountAllowanceDeleteTransaction, AccountAllowanceApproveTransaction, AccountRecordsQueryand AccountDeleteTransaction.

Examples

➡️ AccountAllowanceExample.cc
➡️ DeleteAccountExample.cc
➡️ StakingExample.cc

Notes

There are several files in the repo that are not included in the build and should not used. These files both header (.h) and source (.cc) include:

• AccountStakersQuery
• ContractCallQuery
• ContractDeleteTransaction
• ContractExecuteTransaction
• ContractFunctionResult
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• FileAppendTransaction
• FileContentsQuery
• FileCreateTransaction

Added

• Upgrade to v0.36 of the C++ Hedera protobufs by @rwalworth in #261
• Upgrade to v0.36 of C++ Hedera protobufs by @rwalworth in #266
• Add function forNetwork() to class Client (PR) by @deyanzz in #250
• Add forMainnet() and forPreviewnet() Client APIs by @rwalworth in #231
• Run tests automatically in the PR checks workflow (PR) by @deyanzz in #258
• Valid ECDSAsecp256k1PrivateKeys are throwing BadKeyException by @rwalworth in #254
• Implement ContractCreateTransaction by @rwalworth in #251
• Implement ContractByteCodeQuery by @rwalworth in #248
• Implement AccountInfoQuery by @rwalworth in #246
• Implement AccountAllowanceDeleteTransaction by @rwalworth in #244
• Implement AccountAllowanceApproveTransaction by @rwalworth in #242
• Implement AccountRecordsQuery by @rwalworth in #240
• Implement AccountDeleteTransaction by @rwalworth in #233
• Add Transaction::fromBytes() tests for AccountUpdateTransaction and AccountDeleteTransaction by @rwalworth in #238
• Fix compiler warnings for AccountIdTest and EvmAddressTest by @rwalworth in #234
• Transaction::fromBytes not properly deserializing by @rwalworth in #262

Full Changelog: v0.4.0...v0.5.0

v0.4.0

What's New

➡️ Update Hedera accounts
➡️ Updated API documentation

Examples

➡️ UpdateAccountPublicKeyExample.cc

Notes

There are several files in the repo that are not included in the build and should not used. These files both header (.h) and source (.cc) include:

• AccountAllowanceApproveTransaction
• AccountAllowanceDeleteTransaction
• AccountDeleteTransaction
• AccountInfo
• AccountInfoQuery
• AccountRecordsQuery
• AccountStakersQuery
• ContractByteCodeQuery
• ContractCallQuery
• ContractCreateTransaction
• ContractDeleteTransaction
• ContractExecuteTransaction
• ContractFunctionResult
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• FileAppendTransaction
• FileContentsQuery
• FileCreateTransaction

Added

• Remove clone() for Executable and all derived classes by @rwalworth in #221
• Implement AccountUpdateTransaction by @rwalworth in #220
• Complete implementation for NodeAddress (PR) by @deyanzz in #223
• Conform and update PrivateKey and PublicKey classes by @rwalworth in #218
• Switch std::vector<unsigned char> to std::vector<std::byte> by @rwalworth in #227
• Add docs to APIs by @rwalworth in #228

Full Changelog: v0.3.0...v0.4.0

v0.3.0

What's Changed

➡️ Add nlohmann json framework to manage JSON data
➡️ Add Transaction::fromBytes() function
➡️ Add TransferTransaction support for custom tokens
➡️ Combine OpenSSL utilities into single file

Examples

➡️ TransferTokensExample.cc

Notes

There are several files in the repo that are not included in the build and should not used. These files both header (.h) and source (.cc) include:

• AccountAllowanceApproveTransaction
• AccountAllowanceDeleteTransaction
• AccountDeleteTransaction
• AccountInfo
• AccountInfoQuery
• AccountRecordsQuery
• AccountStakersQuery
• AccountUpdateTransaction
• ContractByteCodeQuery
• ContractCallQuery
• ContractCreateTransaction
• ContractDeleteTransaction
• ContractExecuteTransaction
• ContractFunctionResult
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• FileAppendTransaction
• FileContentsQuery
• FileCreateTransaction

Added

• Add nlohmann_json framework for JSON data by @deyanzz in #208
• Implement Transaction::fromBytes() by @rwalworth in #209
• Add token support to TransferTransaction by @rwalworth in #206
• Create OpenSSLUtils namespace and move all OpenSSL utility classes/functions into it by @rwalworth in #210

Full Changelog: v0.2.1...v0.3.0

v0.2.1

What's Changed

• Install OpenSSL libraries by @rwalworth in #203

Full Changelog: v0.2.0...v0.2.1

v0.2.0

What's Changed

➡️ Generate SLIP44 standard ED25519/ECDSAsecp256k1 private keys from BIP39 mnemonics
➡️ ECDSAPrivateKey and ECDSAPublicKey renamed to ECDSAsecp256k1PrivateKey and ECDSAsecp256k1PublicKey respectively
➡️ Hedera accounts can be created using an EvmAddress

Examples

➡️ GeneratePrivateKeyFromMnemonic.cc

Notes

There are several files in the repo that are not included in the build and should not used. These files (both header (.h) and source (.cc) include:

• AccountAllowanceApproveTransaction
• AccountAllowanceDeleteTransaction
• AccountDeleteTransaction
• AccountInfo
• AccountInfoQuery
• AccountRecordsQuery
• AccountStakersQuery
• AccountUpdateTransaction
• ContractByteCodeQuery
• ContractCallQuery
• ContractCreateTransaction
• ContractDeleteTransaction
• ContractExecuteTransaction
• ContractFunctionResult
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• FileAppendTransaction
• FileContentsQuery
• FileCreateTransaction

Added

• Update to v0.34 of Hedera C++ protobuf release by @rwalworth in #182
• Create an example to derive a PrivateKey from a MnemonicBIP39. by @rwalworth in #184
• Add new protobuf response codes to Status enum by @rwalworth in #174
• Test for proper serialization/deserialization of Hedera protobuf objects by @deyanzz in #176
• Tests are failing in Debug mode for MacOS and Windows by @rwalworth in #186
• Include features introduced in Hedera protobufs since v0.30 by @rwalworth in #188
• Rename all ECDSA key instances to ECDSAsecp256k1 by @rwalworth in #189
• Test and fix memory leaks by @rwalworth in #190
• Use std::unique_ptr to manage OpenSSL memory allocations when able by @rwalworth in #191
• Conform differences in verifySignature for ECDSAsecp256k1PublicKey and ED25519PublicKey by @rwalworth in #194
• Conform to SDK standard for generating PrivateKeys from Mnemonic by @rwalworth in #195
• Add missed wrapper objects by @rwalworth in #196
• Create more descriptive exceptions by @rwalworth in #198
• Add additional cryptography test vectors by @rwalworth in #200

Full Changelog: v0.1.0...v0.2.0

v0.1.0

What's New

➡️ Create new Hedera accounts
➡️ Transfer HBAR between accounts
➡️ Generate ED25519 keys
➡️ Generate ECDSA keys
➡️ Get an account balance

Examples

➡️ CreateAccountExample.cc
➡️ GetAccountBalanceExample.cc
➡️ TransferCryptoExample.cc

Notes

There are several files in the repo that are not included in the build and should not used. These files (both header (.h) and source (.cc) include:

• AccountAllowanceApproveTransaction
• AccountAllowanceDeleteTransaction
• AccountDeleteTransaction
• AccountInfo
• AccountInfoQuery
• AccountRecordsQuery
• AccountStakersQuery
• AccountUpdateTransaction
• ContractByteCodeQuery
• ContractCallQuery
• ContractCreateTransaction
• ContractDeleteTransaction
• ContractExecuteTransaction
• ContractFunctionResult
• ContractInfo
• ContractInfoQuery
• ContractUpdateTransaction
• EthereumTransaction
• EvmAddress
• FileAppendTransaction
• FileContentsQuery
• FileCreateTransaction

Added

• Implement a basic Client by @rwalworth in #26
• Implement Ed25519 signing by @alittley in #44
• Implement a basic Transaction base class by @rwalworth in #37
• Implement ed25519 verification by @alittley in #54
• Implement a basic AccountCreateTransaction by @rwalworth in #40
• Implement a basic TransactionResponse class by @rwalworth in #42
• Implement a basic AccountBalanceQuery class by @rwalworth in #45
• Add support for using the prebuilt HAPI Library to CMake by @nathanklick in #6
• Remove libsodium in favor of OpenSSL, and make keys into smart pointers by @alittley in #24
• Combine alias member variables into single variable by @alittley in #28
• Add keypair class by @alittley in #30
• Implement a single test stub by @alittley in #33
• Remove Java SDK from file copyright headers by @alittley in #35
• Create functions to get DER encoding of public keys by @alittley in #39
• Implement a basic Executable base class by @rwalworth in #36
• Add basic TransactionId type by @rwalworth in #46
• Implement Status type by @rwalworth in #47
• Implement basic ExchangeRate type by @rwalworth in #48
• Implement a basic TransactionReceipt class by @rwalworth in #49
• Implement a basic AccountId type by @rwalworth in #50
• Implement basic ContractId type by @rwalworth in #51
• Implement a basic TransactionRecord by @rwalworth in #52
• Implement a basic TransferTransaction for simple Hbar transfers only by @rwalworth in #55
• Add capabilities to sign Transactions when the transaction is being sent by @rwalworth in #59
• Rename Keypair to PrivateKey by @alittley in #62
• Write tests for basic ed25519 signing and verification by @alittley in #58
• Implement basic Hbar type by @rwalworth in #60
• Impelement serialization and loading of private keys by @alittley in #65
• Use only DER encoding for serialization and deserialization by @alittley in #67
• Write documentation for crypto objects by @alittley in #69
• Add support for GRPC and Protobuf Libraries in HAPI library artifacts by @nathanklick in #72
• Implement and test pubkey to protobuf conversion by @alittley in #74
• Write unit tests for Hbar by @rwalworth in #94
• Create CreateAccountExample by @rwalworth in #70
• Fix pubkey decoding from protobuf by @alittley in #101
• Create GetAccountBalance example by @rwalworth in #99
• Create TransferCryptoExample by @rwalworth in #98
• Create unit tests for AccountBalanceQuery by @rwalworth in #102
• Create unit tests for Client by @rwalworth in #104
• Create unit tests for AccountCreateTransaction by @rwalworth in #103
• Add unit tests for ContractId by @rwalworth in #105
• Add unit test for ExchangeRate and ExchangeRateSet by @rwalworth in #106
• 00063 authenticated channels by @alittley in #110
• Create unit tests for TransactionId by @rwalworth in #107
• Create unit tests for TransactionReceiptTest by @rwalworth in #108
• Create unit tests for TransactionReceiptQuery by @rwalworth in #109
• Create unit tests for TransactionRecord by @rwalworth in #111
• Create unit tests for TransactionRecordQuery by @rwalworth in #112
• Create unit tests for TransactionResponse by @rwalworth in #113
• Create unit tests for TransferTransaction by @rwalworth in #116
• Create unit tests for Transfer by @rwalworth in #114
• 00118 mnemonics by @alittley in #123
• Move implementation-specific classes and APIs to new impl/ folder by @rwalworth in #119
• Create unit tests for AccountId by @rwalworth in #120
• Fix SDK build under Windows OS environment by @nathanklick in #133
• Implement ECDSA(secp256k1) keys by @alittley in #139
• Implement deeper network connectivity logic by @rwalworth in #132
• Running the examples on Windows causes a channel create failure by @rwalworth in #135
• Update README with proper build and testing instructions by @rwalworth in #138
• Revert back to C++17 standards by @rwalworth in #157
• Migrate Actions workflows to new cluster by @nathanklick in #155
• Remove remaining prints on failure and updated tests in ED25519PublicKeyTest by @deyanzz in #160
• Build OpenSSL from source by @rwalworth in #162
• Make the maximum number of token associations for an account 5000 instead of 1000 by @rwalworth in #171
• Update action to remove depreciated set-output by @isavov in #175
• Swap sha256 hashing for keccak256 by @rwalworth in #169
• Fix Windows debug build to use new Hedera C++ protobuf artifacts by @rwalworth in #178
• Update to v0.33 of Hedera C++ protobuf release by @rwalworth in #180

New Contributors

• @deyanzz made their first contribution in #160
• @isavov made their first contribution in #175

Full Changelog: https://github.com/hashgraph/hedera-sdk-cpp/commits/v0.1.0