Add MultisigThresholdPubkey/isMultisigThresholdPubkey

packages/amino/src/index.ts

@@ -5,4 +5,12 @@ export {
   encodeBech32Pubkey,
   encodeSecp256k1Pubkey,
 } from "./encoding";
-export { Pubkey, Secp256k1Pubkey, SinglePubkey, isSinglePubkey, pubkeyType } from "./pubkeys";
+export {
+  MultisigThresholdPubkey,
+  Pubkey,
+  Secp256k1Pubkey,
+  SinglePubkey,
+  isMultisigThresholdPubkey,
+  isSinglePubkey,
+  pubkeyType,
+} from "./pubkeys";

packages/amino/src/pubkeys.spec.ts

@@ -1,4 +1,4 @@
-import { isSinglePubkey } from "./pubkeys";
+import { isMultisigThresholdPubkey, isSinglePubkey } from "./pubkeys";
 
 describe("pubkeys", () => {
   const pubkeyEd25519 = {
@@ -41,4 +41,12 @@ describe("pubkeys", () => {
       expect(isSinglePubkey(pubkeyMultisigThreshold)).toEqual(false);
     });
   });
+
+  describe("isMultisigThresholdPubkey", () => {
+    it("works", () => {
+      expect(isMultisigThresholdPubkey(pubkeyEd25519)).toEqual(false);
+      expect(isMultisigThresholdPubkey(pubkeySecp256k1)).toEqual(false);
+      expect(isMultisigThresholdPubkey(pubkeyMultisigThreshold)).toEqual(true);
+    });
+  });
 });

packages/amino/src/pubkeys.ts

@@ -42,3 +42,16 @@ export function isSinglePubkey(pubkey: Pubkey): pubkey is SinglePubkey {
   const singPubkeyTypes: string[] = [pubkeyType.ed25519, pubkeyType.secp256k1, pubkeyType.sr25519];
   return singPubkeyTypes.includes(pubkey.type);
 }
+
+export interface MultisigThresholdPubkey extends Pubkey {
+  readonly type: "tendermint/PubKeyMultisigThreshold";
+  readonly value: {
+    /** A string-encoded integer */
+    readonly threshold: string;
+    readonly pubkeys: readonly SinglePubkey[];
+  };
+}
+
+export function isMultisigThresholdPubkey(pubkey: Pubkey): pubkey is MultisigThresholdPubkey {
+  return (pubkey as MultisigThresholdPubkey).type === "tendermint/PubKeyMultisigThreshold";
+}