Unable to get privateKey from Solana Chain using "solanaPrivateKey" method

bap.it.project · July 31, 2025, 3:01am

When asking for help in this category, please make sure to provide the following details:

SDK Version(package.json):
“@web3auth/base”: “^9.0.0”,
“@web3auth/ethereum-provider”: “^9.0.0”,
“@web3auth/modal”: “^10.0.5”,
“@web3auth/solana-provider”: “^9.7.0”,
Platform: ReactJS in web browser
Browser Console Screenshots:

image890×221 25.9 KB
My code config:

const web3AuthContextConfig = {
  web3AuthOptions: {
    clientId: 'BE9SGsntpxv6Utr9Z0uYFJZKocyXejbUhgvwmqg5_he_RcxUMREfJtRssunMqmpwG8HloKMEEctsgkNNfj0YBnc',
    defaultChainId: '0x67',
    web3AuthNetwork: WEB3AUTH_NETWORK.SAPPHIRE_DEVNET,
    uiConfig: {
      mode: 'dark',
      defaultLanguage: language,
      borderRadiusType: 'medium',
      displayInstalledExternalWallets: false,
      displayExternalWalletsCount: false,
    },
    modalConfig: {
      connectors: {
        [WALLET_CONNECTORS.AUTH]: {
          label: 'auth',
          loginMethods: {
            google: {
              name: 'Google',
              showOnModal: true,
              authConnectionId: 'w3a-google-bth',
            },
            email_passwordless: {
              name: 'Email',
              showOnModal: true,
              authConnectionId: 'w3a-email-btn',
            },
            apple: {
              name: 'Apple',
              showOnModal: true,
            },
          },
          showOnModal: true,
        },
        [WALLET_CONNECTORS.METAMASK]: {
          label: 'metamask',
          showOnModal: false,
        },
      },
      hideWalletDiscovery: true,
    },
  },
};

My code connect:

await connectTo(WALLET_CONNECTORS.AUTH, {
        authConnection: AUTH_CONNECTION.EMAIL_PASSWORDLESS,
        authConnectionId: 'w3a-email-btn',
        extraLoginOptions: {
          login_hint: email,
        },
      });

My code get privateKey:

import { useWeb3Auth as useWeb3AuthContext, useWeb3AuthUser } from '@web3auth/modal/react';
const { web3Auth, provider, status } = useWeb3AuthContext();
const privateKey = await web3Auth?.provider?.request({ method: METHOD_GET_PRIVATE_KEY[walletType] });

My Project Settings in Dashboard:

image1662×702 53.9 KB

Unable to get privateKey from Solana Chain using “solanaPrivateKey” method.
I have not found the cause, please help me. Thank you very much.

w3abot · July 31, 2025, 3:02am

Thank you for providing detailed information about your integration and the issue you’re facing. Here’s a summary for the support team and a few suggestions that might help you troubleshoot:

Issue Summary

SDK & Version:
- @web3auth/base: ^9.7.0
- @web3auth/modal: ^10.0.5
- @web3auth/no-modal: ^9.0.0
Platform:
ReactJS (Web Browser)
Chain:
Solana (attempting to retrieve private key using “solanaPrivateKey” method)
Login Method:
Email Passwordless (authConnectionId: ‘w3a-email-btn’)
Web3Auth Network:
SAPPHIRE_DEVNET

Code Snippet for Private Key Retrieval:

const privateKey = await web3Auth?.provider?.request({ method: METHOD_GET_PRIVATE_KEY[walletType] });

Observed Issue:
Unable to retrieve the private key for Solana using the “solanaPrivateKey” method.
Console Screenshot:
(Provided, but the image is not visible in this context—please ensure the support team can view it.)
Project Settings Screenshot:
(Provided, but the image is not visible in this context.)

Additional Details for Support Team

Web3Auth Initialization and Login Code:
Provided in the user’s message.
No indication of custom authentication (e.g., JWT, custom verifier) – using standard Email Passwordless.
No JWKS endpoint or idToken provided (not needed for standard social/email login).

Possible Causes & Suggestions

Correct Method Name:
For Solana, the correct method to retrieve the Ed25519 private key is usually "solanaPrivateKey" or "private_key", depending on the SDK version.
Reference: Web3Auth Docs – Solana Integration (Web)
Provider Availability:
Double-check that web3Auth.provider is not null and is ready before making the request. Sometimes, the provider may not be initialized immediately after login.
Method Mapping:
Ensure that METHOD_GET_PRIVATE_KEY[walletType] resolves to "solanaPrivateKey" for Solana. You might want to try explicitly:
```
const privateKey = await web3Auth?.provider?.request({ method: "solanaPrivateKey" });
```
Network Support:
Confirm that the selected network (SAPPHIRE_DEVNET) supports Solana private key retrieval. If not, try switching to a supported network.
SDK Version Compatibility:
There may be compatibility issues with the versions used. Check the Web3Auth Changelog for any breaking changes or updates related to Solana support.
Console Errors:
Since you provided a screenshot, please ensure the support team checks for any specific error messages in the browser console (e.g., “method not found”, “not supported”, etc.).

Next Steps

If you see a specific error message in the console, please copy and paste it here.
If possible, try updating all Web3Auth packages to their latest versions and test again.
Review the official Solana integration guide for Web (React) for any missed configuration steps.

If you have any additional error messages or logs, please share them to help the team diagnose further.

Thank you for your detailed report! The support team will review this information and assist you further.

Note: This response was generated by an AI bot and may require further verification. The Web3Auth support team has tracked this issue and will be responding as soon as possible.

Additionally, we would recommend you to join our biweekly Office Hours to get this resolved even faster. Web3Auth Developer Office Hours

bap.it.project · July 31, 2025, 3:10am

I changed to use web3AuthNetwork: WEB3AUTH_NETWORK.SAPPHIRE_MAINNET
And used the correct method const privateKey = await web3Auth?.provider?.request({ method: “solanaPrivateKey” });

But still got the following error:

{
    "code": -32603,
    "message": "The method solanaPrivateKey does not exist/is not available",
    "data": {
        "code": -32601,
        "message": "The method solanaPrivateKey does not exist/is not available",
        "cause": null
    },
    "stack": "Stack trace is not available."
}

rushaniya.roy · July 31, 2025, 9:13am

Hi what is the goal here, could you please try checking this post: Get private key from solana wallet provider and convert it to a Keypair

maharshi · July 31, 2025, 11:29am

Hey @bap.it.project,
Can you please try using this route?

github.com

Web3Auth/web3auth-examples/blob/main/other/multi-chain-example/src/RPC/solanaRPC.ts#L17


      
          * @param ethProvider The Ethereum provider
          * @returns The Solana account address
          */
          export async function getSolanaAccount(
           ethProvider: IProvider,
          ): Promise<string> {
           const ethPrivateKey = await ethProvider.request({
             method: "private_key",
           });
           
           const privateKey = getED25519Key(ethPrivateKey as string).sk.toString("hex");
           const secretKey = new Uint8Array(Buffer.from(privateKey, 'hex'));
           const keypair = Keypair.fromSecretKey(secretKey);
           return keypair.publicKey.toBase58();
          }
          
          /**
          * Gets the balance for a Solana account
          * @param ethProvider The Ethereum provider
          * @returns The account balance as a string
          */

bap.it.project · August 1, 2025, 10:28am

I succeeded when I tried changing to method: “private_key”
Thanks for everyone’s help!