Get Transaction by Hash

Look up a transaction by its hash.

This method will use 15 Compute Units.

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Get transaction by hash

Look up a transaction by its hash. This is the same hash that is returned by the API when submitting a transaction (see PendingTransaction).

When given a transaction hash, the server first looks for the transaction in storage (on-chain, committed). If no on-chain transaction is found, it looks the transaction up by hash in the mempool (pending, not yet committed).

To create a transaction hash by yourself, do the following:

1. Hash message bytes: "RawTransaction" bytes + BCS bytes of Transaction.
2. Apply hash algorithm SHA3-256 to the hash message bytes.
3. Hex-encode the hash bytes with 0x prefix.

GEThttps://mainnet.aptos.validationcloud.io/v1/<YOUR_API_KEY_HERE>/v1/transactions/by_hash/{txn_hash}

Path parameters

txn_hash*HashValue (string)

Hash of transaction to retrieve

Response

200400403404410500503

Headers

Body

application/jsonapplication/x-bcs

Transaction (object)

Enum of the different types of transactions in Aptos

Transaction_PendingTransaction (all of)Transaction_UserTransaction (all of)Transaction_GenesisTransaction (all of)Transaction_BlockMetadataTransaction (all of)Transaction_StateCheckpointTransaction (all of)

Request

JavaScriptCurlPython

const response = await fetch('https://mainnet.aptos.validationcloud.io/v1/<YOUR_API_KEY_HERE>/v1/transactions/by_hash/{txn_hash}', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

Response

200400403404410500503

{
  "type": "pending_transaction",
  "hash": "text",
  "sender": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
  "sequence_number": "32425224034",
  "max_gas_amount": "32425224034",
  "gas_unit_price": "32425224034",
  "expiration_timestamp_secs": "32425224034",
  "payload": {
    "type": "entry_function_payload",
    "function": "0x1::aptos_coin::transfer",
    "type_arguments": [
      "text"
    ],
    "arguments": []
  },
  "signature": {
    "type": "ed25519_signature",
    "public_key": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 ",
    "signature": "0x88fbd33f54e1126269769780feb24480428179f552e2313fbe571b72e62a1ca1 "
  }
}