Once an app is connected, it is also possible to sign multiple transactions at once. Phantom will not submit these transactions to the network. Applications can submit signed transactions using sendRawTransaction in web3.js.

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Base URL

https://phantom.app/ul/v1/signAllTransactions

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Query string parameters

  • dapp_encryption_public_key (required): The original encryption public key used from the app side for an existing Connect session.
  • nonce (required): A nonce used for encrypting the request, encoded in base58.
  • redirect_link (required): The URI where Phantom should redirect the user upon completion. For more details, see Specify redirects. URL-encoded.
  • payload (required): An encrypted JSON string with the following fields: 
    {
  "transactions": [
    "...", // serialized transaction, bs58-encoded
    "...", // serialized transaction, bs58-encoded
  ],
  "session": "...", // token received from connect-method
}
    • transactions (required): An array of transactions that Phantom will sign, serialized and encoded in base58.
    • session (required): The session token received from the Connect method. For more details, see Handle sessions.

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Returns

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Approve

  • nonce: A nonce used for encrypting the response, encoded in base58.
  • data: An encrypted JSON string. Refer to Encryption to learn how apps can decrypt data using a shared secret. Encrypted bytes are encoded in base58. 
    // content of decrypted `data`-parameter
{
    transactions: [
        "...", // signed serialized transaction, bs58-encoded
        "...", // signed serialized transaction, bs58-encoded
    ] 
}
    • transactions: An array of signed, serialized transactions that are base58 encoded. Phantom will not submit these transactions. Applications can submit these transactions themselves using sendRawTransaction in web3.js.

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Reject

An errorCode and errorMessage as query parameters. For a full list of possible error codes, see Errors. 
{
  "errorCode": "...",
  "errorMessage": "..."
}

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Example

Refer to the signAllTransactions method implemented in our React Native demo application.