Adding errors to unsupported TypeUrls

packages/stargate/src/aminotypes.spec.ts

@@ -1078,6 +1078,17 @@ describe("AminoTypes", () => {
       });
     });
 
+    it("throws for types which are not on chain yet", () => {
+      expect(() => {
+        new AminoTypes({ prefix: "cosmos" }).toAmino({
+          typeUrl: "/cosmos.feegrant.v1beta1.MsgRevokeAllowance",
+          value: 0,
+        });
+      }).toThrowError(
+        /The message type '\/cosmos.feegrant.v1beta1.MsgRevokeAllowance' cannot be signed using the Amino JSON sign mode because this is not implemented on-chain./i,
+      );
+    });
+
     it("throws for unknown type url", () => {
       expect(() =>
         new AminoTypes({ prefix: "cosmos" }).fromAmino({

packages/stargate/src/aminotypes.ts

@@ -63,10 +63,14 @@ function omitDefault<T extends string | number | Long>(input: T): T | undefined
   throw new Error(`Got unsupported type '${typeof input}'`);
 }
 
-function createDefaultTypes(prefix: string): Record<string, AminoConverter> {
+function createDefaultTypes(prefix: string): Record<string, AminoConverter | "not_supported_by_chain"> {
   return {
-    // bank
+    // authz
+    "/cosmos.authz.v1beta1.MsgGrant": "not_supported_by_chain",
+    "/cosmos.authz.v1beta1.MsgExec": "not_supported_by_chain",
+    "/cosmos.authz.v1beta1.MsgRevoke": "not_supported_by_chain",
 
+    // bank
     "/cosmos.bank.v1beta1.MsgSend": {
       aminoType: "cosmos-sdk/MsgSend",
       toAmino: ({ fromAddress, toAddress, amount }: MsgSend): AminoMsgSend["value"] => ({
@@ -508,6 +512,8 @@ function createDefaultTypes(prefix: string): Record<string, AminoConverter> {
         timeoutTimestamp: Long.fromString(timeout_timestamp || "0", true),
       }),
     },
+    "/cosmos.feegrant.v1beta1.MsgGrantAllowance": "not_supported_by_chain",
+    "/cosmos.feegrant.v1beta1.MsgRevokeAllowance": "not_supported_by_chain",
   };
 }
 
@@ -519,6 +525,12 @@ export interface AminoTypesOptions {
   readonly additions?: Record<string, AminoConverter>;
 }
 
+function isAminoConverter(
+  converter: [string, AminoConverter | "not_supported_by_chain"],
+): converter is [string, AminoConverter] {
+  return typeof converter[1] !== "string";
+}
+
 /**
  * A map from Stargate message types as used in the messages's `Any` type
  * to Amino types.
@@ -528,7 +540,7 @@ export class AminoTypes {
   // There is no uniqueness guarantee of the Amino type identifier in the type
   // system or constructor. Instead it's the user's responsibility to ensure
   // there is no overlap when fromAmino is called.
-  private readonly register: Record<string, AminoConverter>;
+  private readonly register: Record<string, AminoConverter | "not_supported_by_chain">;
 
   public constructor({ prefix, additions = {} }: AminoTypesOptions) {
     const defaultTypes = createDefaultTypes(prefix);
@@ -537,6 +549,11 @@ export class AminoTypes {
 
   public toAmino({ typeUrl, value }: EncodeObject): AminoMsg {
     const converter = this.register[typeUrl];
+    if (converter === "not_supported_by_chain") {
+      throw new Error(
+        `The message type '${typeUrl}' cannot be signed using the Amino JSON sign mode because this is not supported by chain.`,
+      );
+    }
     if (!converter) {
       throw new Error(
         `Type URL '${typeUrl}' does not exist in the Amino message type register. ` +
@@ -551,7 +568,10 @@ export class AminoTypes {
   }
 
   public fromAmino({ type, value }: AminoMsg): EncodeObject {
-    const matches = Object.entries(this.register).filter(([_typeUrl, { aminoType }]) => aminoType === type);
+    const matches = Object.entries(this.register)
+      .filter(isAminoConverter)
+      .filter(([_typeUrl, { aminoType }]) => aminoType === type);
+
     switch (matches.length) {
       case 0: {
         throw new Error(