nxt.http

Class BroadcastTransaction

java.lang.Object

nxt.http.APIServlet.APIRequestHandler

nxt.http.BroadcastTransaction

public final class BroadcastTransaction
extends APIServlet.APIRequestHandler

The purpose of broadcast transaction is to support client side signing of transactions. Clients first submit their transaction using CreateTransaction without providing the secret phrase.
In response the client receives the unsigned transaction JSON and transaction bytes.

The client then signs and submits the signed transaction using BroadcastTransaction

The default wallet implements this procedure in nrs.server.js which you can use as reference.

BroadcastTransaction accepts the following parameters:
transactionJSON - JSON representation of the signed transaction
transactionBytes - row bytes composing the signed transaction bytes excluding the prunable appendages
prunableAttachmentJSON - JSON representation of the prunable appendages

Clients can submit either the signed transactionJSON or the signed transactionBytes but not both.
In case the client submits transactionBytes for a transaction containing prunable appendages, the client also needs to submit the prunableAttachmentJSON parameter which includes the attachment JSON for the prunable appendages.

Prunable appendages are classes implementing the Appendix.Prunable interface.

Method Summary

Modifier and Type	Method and Description
protected boolean	allowRequiredBlockParameters()
protected boolean	isChainSpecific()
protected org.json.simple.JSONStreamAware	processRequest(javax.servlet.http.HttpServletRequest req)
protected boolean	requirePost()

Methods inherited from class nxt.http.APIServlet.APIRequestHandler

canHaveRecipient, getAPITags, getCreateTransactionTypes, getFileParameters, getParameters, getSensitiveParameters, isIgnisOnly, isTextArea, processRequest, requireBlockchain, requireFullClient, requirePassword, startDbTransaction

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

processRequest

protected org.json.simple.JSONStreamAware processRequest(javax.servlet.http.HttpServletRequest req)
                                                  throws ParameterException

Specified by:

processRequest in class APIServlet.APIRequestHandler

Throws:

ParameterException

requirePost

protected boolean requirePost()

Overrides:

requirePost in class APIServlet.APIRequestHandler

allowRequiredBlockParameters

protected final boolean allowRequiredBlockParameters()

Overrides:

allowRequiredBlockParameters in class APIServlet.APIRequestHandler

isChainSpecific

protected boolean isChainSpecific()

Overrides:

isChainSpecific in class APIServlet.APIRequestHandler