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queries.ts
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queries.ts
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import { Pubkey } from "@cosmjs/amino";
import { encodePubkey } from "@cosmjs/proto-signing";
import { SignMode } from "cosmjs-types/cosmos/tx/signing/v1beta1/signing";
import {
GetTxRequest,
GetTxResponse,
ServiceClientImpl,
SimulateRequest,
SimulateResponse,
} from "cosmjs-types/cosmos/tx/v1beta1/service";
import { AuthInfo, Fee, Tx, TxBody } from "cosmjs-types/cosmos/tx/v1beta1/tx";
import { Any } from "cosmjs-types/google/protobuf/any";
import Long from "long";
import { createProtobufRpcClient, QueryClient } from "../../queryclient";
export interface TxExtension {
readonly tx: {
getTx: (txId: string) => Promise<GetTxResponse>;
simulate: (
messages: readonly Any[],
memo: string | undefined,
signer: Pubkey,
sequence: number,
) => Promise<SimulateResponse>;
// Add here with tests:
// - broadcastTx
// - getTxsEvent
};
}
export function setupTxExtension(base: QueryClient): TxExtension {
// Use this service to get easy typed access to query methods
// This cannot be used for proof verification
const rpc = createProtobufRpcClient(base);
const queryService = new ServiceClientImpl(rpc);
return {
tx: {
getTx: async (txId: string) => {
const request: GetTxRequest = {
hash: txId,
};
const response = await queryService.GetTx(request);
return response;
},
simulate: async (
messages: readonly Any[],
memo: string | undefined,
signer: Pubkey,
sequence: number,
) => {
const tx = Tx.fromPartial({
authInfo: AuthInfo.fromPartial({
fee: Fee.fromPartial({}),
signerInfos: [
{
publicKey: encodePubkey(signer),
sequence: Long.fromNumber(sequence, true),
modeInfo: { single: { mode: SignMode.SIGN_MODE_UNSPECIFIED } },
},
],
}),
body: TxBody.fromPartial({
messages: Array.from(messages),
memo: memo,
}),
signatures: [new Uint8Array()],
});
const request = SimulateRequest.fromPartial({
txBytes: Tx.encode(tx).finish(),
});
const response = await queryService.Simulate(request);
return response;
},
},
};
}