fix: In MsgSend, use Coin. Add expo API function makeSendTx (#191)

The gnoclient API uses `MsgSend` where the amount is an [array of
`Coin`](https://github.com/gnolang/gno/blob/287c22ec830a1408f1d3de6319602640d841c7cc/tm2/pkg/sdk/bank/msgs.go#L17).
A `Coin` is a struct with [separate fields for Denom and
Amount.](https://github.com/gnolang/gno/blob/287c22ec830a1408f1d3de6319602640d841c7cc/tm2/pkg/std/coin.go#L19)
However, the Gno Native Kit API uses a string such as "1000ugnot" (from
the original version of gnoclient). We want to track the current
gnoclient API. This PR has four commits:

1. Change the Protobuf `MsgSend` to use an array of `Coin` for the
Amount. (The Protobuf `Coin` type was already defined.) Run `make
regenerate` to make the native interfaces. Update
`gnoNativeService.Send` to use the `Coin` struct. Run `npm install
@gnolang/gnonative` to install the new API on buf.build.
2. In expo, update package.json to use the updated bufbuild_es types.
Update `send` to take an array of `Coin`.
3. In expo, for making individual transactions we already have
`makeCallTx`. Add `makeSendTx`.
4. In expo, in `makeCallTx` and `makeSendTx`, the callerAddress should
not be optional. (This should have been fixed for `makeCallTx` in PR
#184 .)

This was tested by making a local expo NPM package and installing
locally in Gnokey Mobile. The following test code sends 100 ugnot to an
address.
```
      const test_addr = await gnonative.addressFromBech32("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5");
      const tx = await gnonative.makeSendTx(test_addr, [new Coin({denom: "ugnot", amount: BigInt(100)})], "1ugnot", BigInt(10000000), keyInfo.address);
      const signedTx = await gnonative.signTx(tx.txJson, keyInfo.address);
      await gnonative.broadcastTxCommit(signedTx.signedTxJson);
```

---------

Signed-off-by: Jeff Thompson <[email protected]>

Author: jefft0

api/gen/csharp/Gnonativetypes.cs

@@ -99,41 +99,42 @@ static GnonativetypesReflection() {
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-            "dmUvYXBpL2dlbi9nb2IGcHJvdG8z"));
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+            "b2IGcHJvdG8z"));
       descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
           new pbr::FileDescriptor[] { },
           new pbr::GeneratedClrTypeInfo(null, null, new pbr::GeneratedClrTypeInfo[] {
@@ -187,7 +188,7 @@ static GnonativetypesReflection() {
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.MsgCall), global::Land.Gno.Gnonative.V1.MsgCall.Parser, new[]{ "PackagePath", "Fnc", "Args", "Send" }, null, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.CallRequest), global::Land.Gno.Gnonative.V1.CallRequest.Parser, new[]{ "GasFee", "GasWanted", "Memo", "CallerAddress", "Msgs" }, null, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.CallResponse), global::Land.Gno.Gnonative.V1.CallResponse.Parser, new[]{ "Result" }, null, null, null, null),
-            new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.MsgSend), global::Land.Gno.Gnonative.V1.MsgSend.Parser, new[]{ "ToAddress", "Send" }, null, null, null, null),
+            new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.MsgSend), global::Land.Gno.Gnonative.V1.MsgSend.Parser, new[]{ "ToAddress", "Amount" }, null, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.SendRequest), global::Land.Gno.Gnonative.V1.SendRequest.Parser, new[]{ "GasFee", "GasWanted", "Memo", "CallerAddress", "Msgs" }, null, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.SendResponse), global::Land.Gno.Gnonative.V1.SendResponse.Parser, null, null, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Land.Gno.Gnonative.V1.MsgRun), global::Land.Gno.Gnonative.V1.MsgRun.Parser, new[]{ "Package", "Send" }, null, null, null, null),
@@ -3165,6 +3166,9 @@ public Coin Clone() {
     /// <summary>Field number for the "denom" field.</summary>
     public const int DenomFieldNumber = 1;
     private string denom_ = "";
+    /// <summary>
+    /// Example: "ugnot"
+    /// </summary>
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute]
     [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)]
     public string Denom {
@@ -10961,7 +10965,7 @@ public MsgSend() {
     [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)]
     public MsgSend(MsgSend other) : this() {
       toAddress_ = other.toAddress_;
-      send_ = other.send_;
+      amount_ = other.amount_.Clone();
       _unknownFields = pb::UnknownFieldSet.Clone(other._unknownFields);
     }
 
@@ -10987,19 +10991,18 @@ public MsgSend Clone() {
       }
     }
 
-    /// <summary>Field number for the "send" field.</summary>
-    public const int SendFieldNumber = 2;
-    private string send_ = "";
+    /// <summary>Field number for the "amount" field.</summary>
+    public const int AmountFieldNumber = 2;
+    private static readonly pb::FieldCodec<global::Land.Gno.Gnonative.V1.Coin> _repeated_amount_codec
+        = pb::FieldCodec.ForMessage(18, global::Land.Gno.Gnonative.V1.Coin.Parser);
+    private readonly pbc::RepeatedField<global::Land.Gno.Gnonative.V1.Coin> amount_ = new pbc::RepeatedField<global::Land.Gno.Gnonative.V1.Coin>();
     /// <summary>
-    /// Example: "1000ugnot"
+    /// Example: [ {Denom: "ugnot", Amount: 1000} ]
     /// </summary>
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute]
     [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)]
-    public string Send {
-      get { return send_; }
-      set {
-        send_ = pb::ProtoPreconditions.CheckNotNull(value, "value");
-      }
+    public pbc::RepeatedField<global::Land.Gno.Gnonative.V1.Coin> Amount {
+      get { return amount_; }
     }
 
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute]
@@ -11018,7 +11021,7 @@ public bool Equals(MsgSend other) {
         return true;
       }
       if (ToAddress != other.ToAddress) return false;
-      if (Send != other.Send) return false;
+      if(!amount_.Equals(other.amount_)) return false;
       return Equals(_unknownFields, other._unknownFields);
     }
 
@@ -11027,7 +11030,7 @@ public bool Equals(MsgSend other) {
     public override int GetHashCode() {
       int hash = 1;
       if (ToAddress.Length != 0) hash ^= ToAddress.GetHashCode();
-      if (Send.Length != 0) hash ^= Send.GetHashCode();
+      hash ^= amount_.GetHashCode();
       if (_unknownFields != null) {
         hash ^= _unknownFields.GetHashCode();
       }
@@ -11050,10 +11053,7 @@ public void WriteTo(pb::CodedOutputStream output) {
         output.WriteRawTag(10);
         output.WriteBytes(ToAddress);
       }
-      if (Send.Length != 0) {
-        output.WriteRawTag(18);
-        output.WriteString(Send);
-      }
+      amount_.WriteTo(output, _repeated_amount_codec);
       if (_unknownFields != null) {
         _unknownFields.WriteTo(output);
       }
@@ -11068,10 +11068,7 @@ public void WriteTo(pb::CodedOutputStream output) {
         output.WriteRawTag(10);
         output.WriteBytes(ToAddress);
       }
-      if (Send.Length != 0) {
-        output.WriteRawTag(18);
-        output.WriteString(Send);
-      }
+      amount_.WriteTo(ref output, _repeated_amount_codec);
       if (_unknownFields != null) {
         _unknownFields.WriteTo(ref output);
       }
@@ -11085,9 +11082,7 @@ public int CalculateSize() {
       if (ToAddress.Length != 0) {
         size += 1 + pb::CodedOutputStream.ComputeBytesSize(ToAddress);
       }
-      if (Send.Length != 0) {
-        size += 1 + pb::CodedOutputStream.ComputeStringSize(Send);
-      }
+      size += amount_.CalculateSize(_repeated_amount_codec);
       if (_unknownFields != null) {
         size += _unknownFields.CalculateSize();
       }
@@ -11103,9 +11098,7 @@ public void MergeFrom(MsgSend other) {
       if (other.ToAddress.Length != 0) {
         ToAddress = other.ToAddress;
       }
-      if (other.Send.Length != 0) {
-        Send = other.Send;
-      }
+      amount_.Add(other.amount_);
       _unknownFields = pb::UnknownFieldSet.MergeFrom(_unknownFields, other._unknownFields);
     }
 
@@ -11130,7 +11123,7 @@ public void MergeFrom(pb::CodedInputStream input) {
             break;
           }
           case 18: {
-            Send = input.ReadString();
+            amount_.AddEntriesFrom(input, _repeated_amount_codec);
             break;
           }
         }
@@ -11157,7 +11150,7 @@ public void MergeFrom(pb::CodedInputStream input) {
             break;
           }
           case 18: {
-            Send = input.ReadString();
+            amount_.AddEntriesFrom(ref input, _repeated_amount_codec);
             break;
           }
         }

api/gen/es/gnonativetypes_pb.d.ts

@@ -372,6 +372,8 @@ export declare class KeyInfo extends Message<KeyInfo> {
  */
 export declare class Coin extends Message<Coin> {
   /**
+   * Example: "ugnot"
+   *
    * @generated from field: string denom = 1;
    */
   denom: string;
@@ -1361,11 +1363,11 @@ export declare class MsgSend extends Message<MsgSend> {
   toAddress: Uint8Array;
 
   /**
-   * Example: "1000ugnot"
+   * Example: [ {Denom: "ugnot", Amount: 1000} ]
    *
-   * @generated from field: string send = 2;
+   * @generated from field: repeated land.gno.gnonative.v1.Coin amount = 2;
    */
-  send: string;
+  amount: Coin[];
 
   constructor(data?: PartialMessage<MsgSend>);
 

api/gen/es/gnonativetypes_pb.js

@@ -528,7 +528,7 @@ export const MsgSend = proto3.makeMessageType(
   "land.gno.gnonative.v1.MsgSend",
   () => [
     { no: 1, name: "to_address", kind: "scalar", T: 12 /* ScalarType.BYTES */ },
-    { no: 2, name: "send", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 2, name: "amount", kind: "message", T: Coin, repeated: true },
   ],
 );