# Baobab Node API 를 이용하여 서명된 트랜잭션 전송

**URL:** <https://devforum.kaia.io/t/baobab-node-api/5671>\
**Category:** Caver\
**Tags:** caver-js, smart-contract\
**Created:** [7월 12, 2022, 7:13오전 UTC](https://devforum.kaia.io/t/baobab-node-api/5671 "2022-07-12T07:13:56Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![SeungJun\_Yoo](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/seungjun_yoo/32/2765_2.png) [@SeungJun\_Yoo](https://devforum.kaia.io/u/SeungJun_Yoo)\
**Post date:** [7월 12, 2022, 7:13오전 UTC](https://devforum.kaia.io/t/baobab-node-api/5671/1 "2022-07-12T07:13:56Z")

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```auto
  const Tx = await caver.transaction.smartContractExecution.create(options);
  const signedTx = await Tx.sign(SERVER_PRIVATE_KEY);
  const receipt = await caver.rpc.klay.sendTransaction(signedTx);

```

안녕하세요, 위와 같이 특정 스마트 컨트랙트의 가스비를 소요하는 메서드를 실행시키는 트랜잭션을 보내려고 합니다.  
현재 caver provider는 [https://api.baobab.klaytn.net:8651](https://api.baobab.klaytn.net:8651) 를 이용하고 있습니다.  
그런데 트랜잭션을 보내면

> When sign/send a transaction using the Node API, existing ‘signatures’ can be initialized.  
> 메세지와 함께

> unknown account 에러메세지가 반환됩니다.

혹시 저 공개 주소로는 서명된 트랜잭션을 보낼 수 없나요?  
서명된 트랜잭션을 보내려면 어떻게 해야하나요?

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<div class="post-metadata">

**Author:** ![Jamie](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/jamie/32/1472_2.png) [@Jamie](https://devforum.kaia.io/u/Jamie)\
**Post date:** [7월 12, 2022, 7:16오전 UTC](https://devforum.kaia.io/t/baobab-node-api/5671/2 "2022-07-12T07:16:46Z")

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안녕하세요

서명된 트랜잭션은 `caver.rpc.klay.sendRawTransaction`으로 전송하시기 바랍니다.

감사합니다

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<div class="post-metadata">

**Author:** ![Phoebe](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/phoebe/32/2597_2.png) [@Phoebe](https://devforum.kaia.io/u/Phoebe)\
**Post date:** [7월 12, 2022, 7:17오전 UTC](https://devforum.kaia.io/t/baobab-node-api/5671/3 "2022-07-12T07:17:15Z")

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> [@SeungJun\_Yoo](#):
>
> `sendTransaction`

링크는 여기 참고하시면 됩니다. [https://ko.docs.klaytn.foundation/dapp/sdk/caver-js/api-references/caver.rpc/klay#caver-rpc-klay-sendrawtransaction](https://ko.docs.klaytn.foundation/dapp/sdk/caver-js/api-references/caver.rpc/klay#caver-rpc-klay-sendrawtransaction)

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<div class="post-metadata">

**Author:** ![SeungJun\_Yoo](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/seungjun_yoo/32/2765_2.png) [@SeungJun\_Yoo](https://devforum.kaia.io/u/SeungJun_Yoo)\
**Post date:** [7월 12, 2022, 7:31오전 UTC](https://devforum.kaia.io/t/baobab-node-api/5671/4 "2022-07-12T07:31:46Z")

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sendRawTransaction 으로 해결했습니다. 감사합니다