Merge pull request #96 from confio/expose-send

Expose sendToken() on CosmWasmClient

packages/sdk/src/cosmwasmclient.spec.ts

@@ -222,50 +222,22 @@ describe("CosmWasmClient", () => {
     beforeAll(async () => {
       if (cosmosEnabled()) {
         const pen = await Secp256k1Pen.fromMnemonic(faucet.mnemonic);
-        const client = CosmWasmClient.makeReadOnly(httpUrl);
+        const client = CosmWasmClient.makeWritable(httpUrl, faucet.address, signBytes => pen.sign(signBytes));
 
-        const memo = "My first contract on chain";
-        const sendMsg: MsgSend = {
-          type: "cosmos-sdk/MsgSend",
-          value: {
-            from_address: faucet.address,
-            to_address: makeRandomAddress(),
-            amount: [
-              {
-                denom: "ucosm",
-                amount: "1234567",
-              },
-            ],
+        const recipient = makeRandomAddress();
+        const transferAmount = [
+          {
+            denom: "ucosm",
+            amount: "1234567",
           },
-        };
+        ];
+        const result = await client.sendTokens(recipient, transferAmount);
 
-        const fee: StdFee = {
-          amount: [
-            {
-              amount: "5000",
-              denom: "ucosm",
-            },
-          ],
-          gas: "890000",
-        };
-
-        const chainId = await client.chainId();
-        const { accountNumber, sequence } = await client.getNonce(faucet.address);
-        const signBytes = makeSignBytes([sendMsg], fee, chainId, memo, accountNumber, sequence);
-        const signature = await pen.sign(signBytes);
-        const signedTx = {
-          msg: [sendMsg],
-          fee: fee,
-          memo: memo,
-          signatures: [signature],
-        };
-
-        const result = await client.postTx(marshalTx(signedTx));
         await sleep(50); // wait until tx is indexed
         const txDetails = await new RestClient(httpUrl).txsById(result.transactionHash);
         posted = {
-          sender: sendMsg.value.from_address,
-          recipient: sendMsg.value.to_address,
+          sender: faucet.address,
+          recipient: recipient,
           hash: result.transactionHash,
           height: Number.parseInt(txDetails.height, 10),
           tx: txDetails.tx,
@@ -446,6 +418,37 @@ describe("CosmWasmClient", () => {
     });
   });
 
+  describe("sendTokens", () => {
+    it("works", async () => {
+      pendingWithoutCosmos();
+      const pen = await Secp256k1Pen.fromMnemonic(faucet.mnemonic);
+      const client = CosmWasmClient.makeWritable(httpUrl, faucet.address, signBytes => pen.sign(signBytes));
+
+      // instantiate
+      const transferAmount: readonly Coin[] = [
+        {
+          amount: "7890",
+          denom: "ucosm",
+        },
+      ];
+      const beneficiaryAddress = makeRandomAddress();
+
+      // no tokens here
+      const before = await client.getAccount(beneficiaryAddress);
+      expect(before).toBeUndefined();
+
+      // send
+      const result = await client.sendTokens(beneficiaryAddress, transferAmount, "for dinner");
+      const [firstLog] = result.logs;
+      expect(firstLog).toBeTruthy();
+
+      // got tokens
+      const after = await client.getAccount(beneficiaryAddress);
+      assert(after);
+      expect(after.coins).toEqual(transferAmount);
+    });
+  });
+
   describe("queryContractRaw", () => {
     const configKey = toAscii("config");
     const otherKey = toAscii("this_does_not_exist");

packages/sdk/src/cosmwasmclient.ts

@@ -10,39 +10,40 @@ import {
   CosmosSdkTx,
   MsgExecuteContract,
   MsgInstantiateContract,
+  MsgSend,
   MsgStoreCode,
   StdFee,
   StdSignature,
 } from "./types";
 
-const defaultUploadFee: StdFee = {
-  amount: [
-    {
-      amount: "5000",
-      denom: "ucosm",
-    },
-  ],
-  gas: "1000000", // one million
-};
+export interface FeeTable {
+  readonly upload: StdFee;
+  readonly init: StdFee;
+  readonly exec: StdFee;
+  readonly send: StdFee;
+}
 
-const defaultInitFee: StdFee = {
-  amount: [
-    {
-      amount: "5000",
-      denom: "ucosm",
-    },
-  ],
-  gas: "500000", // 500k
-};
+function singleAmount(amount: number, denom: string): readonly Coin[] {
+  return [{ amount: amount.toString(), denom: denom }];
+}
 
-const defaultExecFee: StdFee = {
-  amount: [
-    {
-      amount: "5000",
-      denom: "ucosm",
-    },
-  ],
-  gas: "200000", // 200k
+const defaultFees: FeeTable = {
+  upload: {
+    amount: singleAmount(25000, "ucosm"),
+    gas: "1000000", // one million
+  },
+  init: {
+    amount: singleAmount(12500, "ucosm"),
+    gas: "500000", // 500k
+  },
+  exec: {
+    amount: singleAmount(5000, "ucosm"),
+    gas: "200000", // 200k
+  },
+  send: {
+    amount: singleAmount(2000, "ucosm"),
+    gas: "80000", // 80k
+  },
 };
 
 export interface SigningCallback {
@@ -98,22 +99,28 @@ export interface ExecuteResult {
 
 export class CosmWasmClient {
   public static makeReadOnly(url: string): CosmWasmClient {
-    return new CosmWasmClient(url);
+    return new CosmWasmClient(url, undefined, {});
   }
 
   public static makeWritable(
     url: string,
     senderAddress: string,
     signCallback: SigningCallback,
+    feeTable?: Partial<FeeTable>,
   ): CosmWasmClient {
-    return new CosmWasmClient(url, {
-      senderAddress: senderAddress,
-      signCallback: signCallback,
-    });
+    return new CosmWasmClient(
+      url,
+      {
+        senderAddress: senderAddress,
+        signCallback: signCallback,
+      },
+      feeTable || {},
+    );
   }
 
   private readonly restClient: RestClient;
   private readonly signingData: SigningData | undefined;
+  private readonly fees: FeeTable;
 
   private get senderAddress(): string {
     if (!this.signingData) throw new Error("Signing data not set in this client");
@@ -125,9 +132,10 @@ export class CosmWasmClient {
     return this.signingData.signCallback;
   }
 
-  private constructor(url: string, signingData?: SigningData) {
+  private constructor(url: string, signingData: SigningData | undefined, customFees: Partial<FeeTable>) {
     this.restClient = new RestClient(url);
     this.signingData = signingData;
+    this.fees = { ...defaultFees, ...customFees };
   }
 
   public async chainId(): Promise<string> {
@@ -234,7 +242,7 @@ export class CosmWasmClient {
         builder: "",
       },
     };
-    const fee = defaultUploadFee;
+    const fee = this.fees.upload;
     const { accountNumber, sequence } = await this.getNonce();
     const chainId = await this.chainId();
     const signBytes = makeSignBytes([storeCodeMsg], fee, chainId, memo, accountNumber, sequence);
@@ -270,7 +278,7 @@ export class CosmWasmClient {
         init_funds: transferAmount || [],
       },
     };
-    const fee = defaultInitFee;
+    const fee = this.fees.init;
     const { accountNumber, sequence } = await this.getNonce();
     const chainId = await this.chainId();
     const signBytes = makeSignBytes([instantiateMsg], fee, chainId, memo, accountNumber, sequence);
@@ -304,7 +312,7 @@ export class CosmWasmClient {
         sent_funds: transferAmount || [],
       },
     };
-    const fee = defaultExecFee;
+    const fee = this.fees.exec;
     const { accountNumber, sequence } = await this.getNonce();
     const chainId = await this.chainId();
     const signBytes = makeSignBytes([executeMsg], fee, chainId, memo, accountNumber, sequence);
@@ -322,6 +330,36 @@ export class CosmWasmClient {
     };
   }
 
+  public async sendTokens(
+    recipientAddress: string,
+    transferAmount: readonly Coin[],
+    memo = "",
+  ): Promise<PostTxResult> {
+    const sendMsg: MsgSend = {
+      type: "cosmos-sdk/MsgSend",
+      value: {
+        // eslint-disable-next-line @typescript-eslint/camelcase
+        from_address: this.senderAddress,
+        // eslint-disable-next-line @typescript-eslint/camelcase
+        to_address: recipientAddress,
+        amount: transferAmount,
+      },
+    };
+    const fee = this.fees.send;
+    const { accountNumber, sequence } = await this.getNonce();
+    const chainId = await this.chainId();
+    const signBytes = makeSignBytes([sendMsg], fee, chainId, memo, accountNumber, sequence);
+    const signature = await this.signCallback(signBytes);
+    const signedTx = {
+      msg: [sendMsg],
+      fee: fee,
+      memo: memo,
+      signatures: [signature],
+    };
+
+    return this.postTx(marshalTx(signedTx));
+  }
+
   /**
    * Returns the data at the key if present (raw contract dependent storage data)
    * or null if no data at this key.

packages/sdk/types/cosmwasmclient.d.ts

@@ -1,6 +1,12 @@
 import { Log } from "./logs";
 import { BlockResponse, TxsResponse } from "./restclient";
-import { Coin, CosmosSdkAccount, CosmosSdkTx, StdSignature } from "./types";
+import { Coin, CosmosSdkAccount, CosmosSdkTx, StdFee, StdSignature } from "./types";
+export interface FeeTable {
+  readonly upload: StdFee;
+  readonly init: StdFee;
+  readonly exec: StdFee;
+  readonly send: StdFee;
+}
 export interface SigningCallback {
   (signBytes: Uint8Array): Promise<StdSignature>;
 }
@@ -29,9 +35,15 @@ export interface ExecuteResult {
 }
 export declare class CosmWasmClient {
   static makeReadOnly(url: string): CosmWasmClient;
-  static makeWritable(url: string, senderAddress: string, signCallback: SigningCallback): CosmWasmClient;
+  static makeWritable(
+    url: string,
+    senderAddress: string,
+    signCallback: SigningCallback,
+    feeTable?: Partial<FeeTable>,
+  ): CosmWasmClient;
   private readonly restClient;
   private readonly signingData;
+  private readonly fees;
   private get senderAddress();
   private get signCallback();
   private constructor();
@@ -71,6 +83,7 @@ export declare class CosmWasmClient {
     memo?: string,
     transferAmount?: readonly Coin[],
   ): Promise<ExecuteResult>;
+  sendTokens(recipientAddress: string, transferAmount: readonly Coin[], memo?: string): Promise<PostTxResult>;
   /**
    * Returns the data at the key if present (raw contract dependent storage data)
    * or null if no data at this key.