Custom Query Extensions

import { createProtobufRpcClient, QueryClient } from "@cosmjs/stargate";
import { QueryClientImpl } from "./generated/mymodule/query";

export interface MyModuleExtension {
  readonly mymodule: {
    readonly myQuery: (param: string) => Promise<MyQueryResponse>;
  };
}

export function setupMyModuleExtension(base: QueryClient): MyModuleExtension {
  const rpc = createProtobufRpcClient(base);
  const queryService = new QueryClientImpl(rpc);

  return {
    mymodule: {
      myQuery: async (param: string) => {
        return queryService.MyQuery({ param });
      },
    },
  };
}

import { QueryClient, setupBankExtension } from "@cosmjs/stargate";
import { connectComet } from "@cosmjs/tendermint-rpc";

const cometClient = await connectComet("https://rpc.my-chain.network");
const queryClient = QueryClient.withExtensions(
  cometClient,
  setupBankExtension,
  setupMyModuleExtension,
);

const result = await queryClient.mymodule.myQuery("cosmos1senderaddress...");

import { connectComet } from "@cosmjs/tendermint-rpc";
import { QueryClient } from "@cosmjs/stargate";

const cometClient = await connectComet("https://rpc.my-chain.network");
const queryClient = new QueryClient(cometClient);

const response = await queryClient.queryAbci(
  "/my.custom.module.Query/MyMethod",
  encodedRequest,
);