@cosmos-kit/terra-extension/module/extension/signer.js

cosmos-kit wallet connector

import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import { Fee as TerraFee, Msg as TerraMsg, SignatureV2 } from '@terra-money/feather.js';
export class OfflineSigner {
  constructor(extension, accountInfo) {
    _defineProperty(this, "extension", void 0);
    _defineProperty(this, "accountInfo", void 0);
    this.extension = extension;
    this.accountInfo = accountInfo;
  }
  async getAccounts() {
    return [{
      address: this.accountInfo.address,
      algo: this.accountInfo.algo || 'secp256k1',
      pubkey: this.accountInfo.pubkey
    }];
  }
  async signAmino(signerAddress, signDoc) {
    const signDocFee = signDoc.fee;
    const feeAmount = signDocFee.amount[0].amount + signDocFee.amount[0].denom;
    const fakeMsgs = signDoc.msgs.map(msg => TerraMsg.fromAmino(msg));
    const signResponse = await this.extension.sign({
      chainID: signDoc.chain_id,
      msgs: fakeMsgs,
      fee: new TerraFee(parseInt(signDocFee.gas), feeAmount, signDocFee.payer, signDocFee.granter),
      memo: signDoc.memo,
      signMode: SignatureV2.SignMode.SIGN_MODE_LEGACY_AMINO_JSON
    });
    const signature = {
      pub_key: signResponse.payload.result.auth_info.signer_infos[0].public_key.key,
      signature: signResponse.payload.result.signatures[0]
    };
    return {
      signed: signDoc,
      signature
    };
  }
}