【confirmTransaction】 push an error on alchemy : Unsupported method: ping. See available methods at https://docs.alchemy.com/alchemy/documentation/apis

[shifenhutu]

Overview

when i use sendAndConfirmTransaction , i sometimes can't got the transaction status , then i enter https://dashboard.alchemy.com/logs/ , it throw an error:

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32602,
    "message": "Unsupported method: ping. See available methods at https://docs.alchemy.com/alchemy/documentation/apis"
  }
}

Steps to reproduce

i think the bug maybe from confirmTransaction , so i create a lillte demo, to reproduce the bug

here is my code:

https://codesandbox.io/p/sandbox/romantic-bohr-tr496j?file=%2Fsrc%2Findex.js
【you need replace your alchemy key in the rpcUrl 】

when i click the buton , i got error in https://dashboard.alchemy.com/

Description of bug

the api confirmTransaction can't wait the transanction status , i say the api is deprecated, #792 but i found it in the source https://github.com/solana-labs/solana-web3.js/blob/master/packages/library-legacy/src/connection.ts#L3734

are we deprecated it ?

---

thank you very much

i am so sorry for that i am not good at english

========

chinese version [中文版]:

我在使用 sendAndConfirmTransaction 发送交易的时候，经常 等不到交易，经常超时，我增加了超时时间，还是会出错

我的节点用的是 alchemy的， 在 alchemy的后台，我查看了日志，报错是

经过简单排查，我发现 是 api confirmTransaction 导致了这个超时

我创建了一个最小的demo，来复现这个错误 https://codesandbox.io/p/sandbox/romantic-bohr-tr496j?file=%2Fsrc%2Findex.js

[使用demo的时候，需要把 变量 rpcUrl 里的 key 替换为 你在 alchemy的 key]

点击 demo里的按钮，会发起一个查询 交易的请求， 这个请求极大概率， 99%的概率， 会在 alchemy 报错

[buffalojoec]

Hello, so I've noticed a few things here, but this is not a bug with Web3.js, so it doesn't belong here.

First of all, the error you've posted here is telling you that ping is not a method supported by Alchemy's RPC.

Unsupported method: ping. See available methods at https://docs.alchemy.com/alchemy/documentation/apis

You need to use a method that's actually supported by the RPC.

As far as confirming the transaction goes, you're using an old transaction that has long been confirmed/finalized. The method confirmTransaction(..) is designed to subscribe to signatures to receive a notification when the transaction with the given signature reaches the specified commitment level.

Since your transaction is already finalized, it's never going to get a notification that it's confirmation status has changed.

https://docs.solana.com/api/websocket#signaturesubscribe

[github-actions]

Hi @shifenhutu,

Thanks for your question!

We want to make sure to keep signal strong in the GitHub issue tracker – to make sure that it remains the best place to track issues that affect the development of the Solana JavaScript SDK itself.

Questions like yours deserve a purpose-built Q&A forum. Unless there exists evidence that this is a bug with the Solana JavaScript SDK itself, please post your question to the Solana Stack Exchange using this link: https://solana.stackexchange.com/questions/ask

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[github-actions]

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