cosmwasm-stargate: Add SigningCosmWasmClient staking methods

packages/cosmwasm-stargate/src/signingcosmwasmclient.spec.ts

@@ -91,6 +91,18 @@ describe("SigningCosmWasmClient", () => {
           amount: coins(251200, "utest"),
           gas: "80000",
         },
+        delegate: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
+        undelegate: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
+        withdraw: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
       });
     });
 
@@ -130,6 +142,18 @@ describe("SigningCosmWasmClient", () => {
           amount: coins(2000, "ucosm"),
           gas: "80000",
         },
+        delegate: {
+          amount: coins(4000, "ucosm"),
+          gas: "160000",
+        },
+        undelegate: {
+          amount: coins(4000, "ucosm"),
+          gas: "160000",
+        },
+        withdraw: {
+          amount: coins(4000, "ucosm"),
+          gas: "160000",
+        },
       });
     });
 
@@ -170,6 +194,18 @@ describe("SigningCosmWasmClient", () => {
           amount: coins(251200, "utest"),
           gas: "80000",
         },
+        delegate: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
+        undelegate: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
+        withdraw: {
+          amount: coins(502400, "utest"),
+          gas: "160000",
+        },
       });
     });
   });

packages/cosmwasm-stargate/src/signingcosmwasmclient.ts

@@ -38,6 +38,8 @@ import {
   logs,
   StdFee,
 } from "@cosmjs/stargate";
+import { MsgWithdrawDelegatorReward } from "@cosmjs/stargate/build/codec/cosmos/distribution/v1beta1/tx";
+import { MsgDelegate, MsgUndelegate } from "@cosmjs/stargate/build/codec/cosmos/staking/v1beta1/tx";
 import { SignMode } from "@cosmjs/stargate/build/codec/cosmos/tx/signing/v1beta1/signing";
 import { TxRaw } from "@cosmjs/stargate/build/codec/cosmos/tx/v1beta1/tx";
 import { Tendermint34Client } from "@cosmjs/tendermint-rpc";
@@ -332,6 +334,44 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     return this.signAndBroadcast(senderAddress, [sendMsg], this.fees.send, memo);
   }
 
+  public async delegateTokens(
+    delegatorAddress: string,
+    validatorAddress: string,
+    amount: Coin,
+    memo = "",
+  ): Promise<BroadcastTxResponse> {
+    const delegateMsg = {
+      typeUrl: "/cosmos.staking.v1beta1.MsgDelegate",
+      value: MsgDelegate.fromPartial({ delegatorAddress: delegatorAddress, validatorAddress, amount }),
+    };
+    return this.signAndBroadcast(delegatorAddress, [delegateMsg], this.fees.delegate, memo);
+  }
+
+  public async undelegateTokens(
+    delegatorAddress: string,
+    validatorAddress: string,
+    amount: Coin,
+    memo = "",
+  ): Promise<BroadcastTxResponse> {
+    const undelegateMsg = {
+      typeUrl: "/cosmos.staking.v1beta1.MsgUndelegate",
+      value: MsgUndelegate.fromPartial({ delegatorAddress: delegatorAddress, validatorAddress, amount }),
+    };
+    return this.signAndBroadcast(delegatorAddress, [undelegateMsg], this.fees.undelegate, memo);
+  }
+
+  public async withdrawRewards(
+    delegatorAddress: string,
+    validatorAddress: string,
+    memo = "",
+  ): Promise<BroadcastTxResponse> {
+    const withdrawMsg = {
+      typeUrl: "/cosmos.distribution.v1beta1.MsgWithdrawDelegatorReward",
+      value: MsgWithdrawDelegatorReward.fromPartial({ delegatorAddress: delegatorAddress, validatorAddress }),
+    };
+    return this.signAndBroadcast(delegatorAddress, [withdrawMsg], this.fees.withdraw, memo);
+  }
+
   /**
    * Creates a transaction with the given messages, fee and memo. Then signs and broadcasts the transaction.
    *