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Sending Transactions in Tron

Creating and broadcasting transactions via Transatron works just like standard Tron flows. The only addition is telling Transatron how to cover fees.

Examples of all flows: Transatron TronWeb Examples.

Transfer TRX Transactions​

No special prep is required. Create with your client (tronweb or tronpy) and broadcast.

  1. Prepare a TRX transfer transaction.
  2. Sign the transaction.
  3. POST /wallet/broadcasttransaction with the signed payload.

Smart Contract Transactions (incl. TRC-20)​

  1. Prepare
    Call POST /wallet/triggersmartcontract with:

    • owner (originator) address
    • contract address
    • function selector + params
      → You get a prepared transaction.
    • With Transatron, you’ll also get a transatron object in the response.

  2. Estimate energy → fee limit
    Call POST /wallet/triggerconstantcontract with the prepared transaction to obtain energy_used.
    Get energy_fee from GET /wallet/getchainparameters, then compute: fee_limit = energy_used * energy_fee Set fee_limit in the prepared transaction.

Example: if energy_used = 30,000 and energy_fee = 420 sun/energy, fee_limit = 12,600,000 sun (12.6 TRX).

  1. Sign
    Sign the prepared transaction with the wallet private key and inject the signature.

  2. Broadcast
    POST /wallet/broadcasttransaction with the prepared & signed transaction.

  • With Transatron, the response includes a transatron object.

Important Notes​

  1. API compatibility: Transatron is a proxy Tron node; API matches the Tron Node API with the extensions noted above.
  2. Access: You need an API key — contact info@transatron.io or Telegram Support.
  3. Protocol: Transatron currently supports JSON-RPC only (gRPC not supported).
  4. TFN/TFU: You can read TFN/TFU balances via the Transatron node. Transfers of these tokens are not yet supported.

Example Scripts​

See sending transactions examples here:
👉 examples_tronweb/src/sendingTransactions.js