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transactions.md

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Sending a transaction

The omg-js api provides a few different ways to send a transaction on the OMG Network.

The process of creating and submitting a transaction follows this process:

  1. define a transaction body: definition -> transactionBody
  2. convert that transaction body into typedData: transactionBody -> typedData
  3. sign and encode that typedData into a signed transaction: typedData -> signed transaction
  • or sign and submit the typedData directly: typedData -> transaction receipt
  1. submit the signed transaction to the childchain: signed transaction -> transaction receipt

Create a transaction body

  • childchain.createTransaction (uses the childchain endpoint to construct transaction bodies)
  • transaction.createTransactionBody (uses local logic to construct a transaction body)
  • manually define the transaction body yourself

METHOD A

For full control of the transaction

  1. create a transaction body using a method explained above
  2. transaction.getTypedData (sanitizes transaction into the correct typedData format)
  3. childchain.signTransaction (locally signs typedData with passed private keys, useful for multiple different signatures. can also use metamask to sign: see signing-methods)
  4. childchain.buildSignedTransaction (returns encoded and signed transaction ready to be submitted)
  5. childchain.submitTransaction (submits to the childchain)

METHOD B

Relying on the childchain completely to create and send the transaction. Note that this method will choose the UTXO for you by using the largest utxo of that specific currency (also you won't able to do 2 transactions in the same block using this method).

  1. childchain.createTransaction (will construct a transaction body using the childchain)
  2. childchain.signTypedData (locally will sign a transaction selected from childchain.createTransaction)
  3. childchain.submitTyped (will submit the result of childchain.signTypedData)

METHOD C

If you only need to define which UTXOs can be spent

  1. childchain.getUtxos (first get all available UTXOs and then select what you want to spend)
  2. childchain.sendTransaction (internally will create/getTyped/sign/buildSigned/submit from the utxos you pass it)