Hedera-sdk-py

Added

* Support for `CustomRoyaltyFee`
* `AssessedCustomFee.payerAccountIds`
* `CustomFractionalFee.assessmentMethod`

Added

* Implement `TokenCreateTransaction.setFeeScheduleKey()`

Changes

* Update `Status` with new codes

Added

* Support for NFTS
* Creating NFT tokens
* Minting NFTs
* Burning NFTs
* Transfering NFTs
* Wiping NFTs
* Query NFT information
* Support for Custom Fees on tokens:
* Setting custom fees on a token
* Updating custom fees on an existing token

Changed

All changes are not immediately breaking as the previous method still should exist and be working. The previous methods are flagged as deprecated and will be removed upon `v1.0`.

* Transactions and queries do not take `Client` in the constructor; instead, `Client` is passed to `execute`.

* Removed `Transaction.executeForReceipt` and `Transaction.executeForRecord`

These methods have been identified as harmful as they hide too much. If one fails, you do not know if the transaction failed to execute; or, the receipt/record could not be retrieved. In a mission-critical application, that is, of course, an important distinction.

Now there is only `Transaction.execute` which returns a `TransactionId`. If you don't care about waiting for consensus or retrieving a receipt/record in your application, you're done. Otherwise you can now use any `TransactionId` and ask for the receipt/record (with a stepped retry interval until consensus) with `TransactionId.getReceipt` and `TransactionId.getRecord`.

v0.8.x and below

java
AccountId newAccountId = new AccountCreateTransaction(hederaClient)
.setKey(newKey.getPublicKey())
.setInitialBalance(1000)
.executeForReceipt() // TransactionReceipt
.getAccountId();


v0.9.x

java
AccountId newAccountId = new AccountCreateTransaction()
.setKey(newKey.getPublicKey())
.setInitialBalance(1000)
.execute(hederaClient) // TranactionId
.getReceipt(hederaClient) // TransactionReceipt
.getAccountId();


* `TransactionReceipt`, `AccountInfo`, `TransactionRecord`, etc. now expose public final fields instead of getters (where possible and it makes sense).

* Rename `getCallResult` and `getCreateResult` to `getContractExecuteResult` and `getContractCreateResult` for consistency

Added

* `TransactionId.getReceipt`

* `TransactionId.getRecord`

* `FileId.ADDRESS_BOOK`, `FileId.FEE_SCHEDULE`, `FileId.EXCHANGE_RATES`

* Experimental support for the Hedera Consensus Service (HCS). HCS is not yet generally available but if you have access
the SDK can work with the current iteration of it. Due to its experimental nature, a system property must be set before use.

java
System.setPropery("com.hedera.hashgraph.sdk.experimental", "true")


Fixes

* `FileCreateTransaction` sets a default expiration time; fixes `AUTORENEW_DURATION_NOT_IN_RANGE`.

* `BUSY` is now internally retried in all cases.

* The maximum query payment is now defaulted to 1 Hbar. By default, just before a query is executed we ask Hedera how much the query will cost and if it costs under the defined maximum, an exact payment is sent.

Removed

* `Transaction` and `Query` types related to claims

Fixes compatibility with Android.

Breaking Changes

* The `Key` interface has been renamed to `PublicKey`
* You are now required to depend on the gRPC transport dependency for your specific environment

Maven

xml
<!-- SELECT ONE: -->
<!-- netty transport (for server or desktop applications) -->
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
<version>1.24.0</version>
</dependency>
<!-- netty transport, unshaded (if you have a matching Netty dependency already) -->
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<version>1.24.0</version>
</dependency>
<!-- okhttp transport (for lighter-weight applications or Android) -->
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-okhttp</artifactId>
<version>1.24.0</version>
</dependency>


Gradle

groovy
// SELECT ONE:
// netty transport (for high throughput applications)
implementation 'io.grpc:grpc-netty-shaded:1.24.0'
// netty transport, unshaded (if you have a matching Netty dependency already)
implementation 'io.grpc:grpc-netty:1.24.0'
// okhttp transport (for lighter-weight applications or Android)
implementation 'io.grpc:grpc-okhttp:1.24.0'