Feature/delegate (#11)

* bump version

* fix error import

* add did poke demo

* bump version

* fix error import

* add did poke demo

* add poke and transfer help method

* add some test

* bump version

Author: PaperHS

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.37.2 (September 16, 2019)
+  - Add delegate method
+  - Add delegatee parameter for some interface
+  - Add Unit Test
+
 ## 0.35.0 (September 03, 2019)
   - update protocal to support delegate
   - Merge branch 'version/0.32' into feature/delegate

core/src/main/java/io/arcblock/forge/Extension.kt

@@ -57,6 +57,16 @@ fun ForgeSDK.sendTx(tx: Type.Transaction): Rpc.ResponseSendTx {
   return sendTx(Rpc.RequestSendTx.newBuilder().setTx(tx).build())
 }
 
+/**
+ * add delegatee ,must before sign
+ */
+fun Type.Transaction.delegatee(delegatee: String?) = delegatee?.let {
+    val from = this.from
+    this.toBuilder().setFrom(delegatee)
+      .setDelegator(from).clearSignature().build()
+  } ?: this
+
+
 /**
  * base58btc address to DID
  */
@@ -100,3 +110,6 @@ fun Type.Transaction.signTx(sk: ByteArray): Type.Transaction {
   val sig = this.toBuilder().clearSignature().build().toByteArray().hash(HashType.SHA3).sign(sk)
   return this.toBuilder().setSignature(sig.toByteString()).build()
 }
+
+data class Result(val response: Rpc.ResponseSendTx, val address: String)
+