nxt.http

Class DecodeQRCode

java.lang.Object

nxt.http.APIServlet.APIRequestHandler

nxt.http.DecodeQRCode

public final class DecodeQRCode
extends APIServlet.APIRequestHandler

The DecodeQRCode API converts a base64-encoded image of a 2-D QR (Quick Response) code to a UTF-8 string, using the ZXing library.

The input qrCodeBase64 can be the output of the DecodeQRCode API.

Request parameters:

• qrCodeBase64 - A base64 string encoded from an image of a QR code. The length of the string must be less than the jetty server maximum allowed parameter length, currently 200,000 bytes.

Response fields:

• qrCodeData - A UTF-8 string decoded from the QR code.

Field Summary

Fields inherited from class nxt.http.APIServlet.APIRequestHandler

DESCRIPTION_FIELD, MESSAGE_FIELD, NAME_FIELD

Method Summary

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

Methods inherited from class nxt.http.APIServlet.APIRequestHandler

getAPITags, getFileParameter, getParameters, processRequest, 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 request)
                                                  throws NxtException

Specified by:

processRequest in class APIServlet.APIRequestHandler

Throws:

NxtException

requirePost

protected final boolean requirePost()

Overrides:

requirePost in class APIServlet.APIRequestHandler

allowRequiredBlockParameters

protected boolean allowRequiredBlockParameters()

Overrides:

allowRequiredBlockParameters in class APIServlet.APIRequestHandler

requireBlockchain

protected boolean requireBlockchain()

Overrides:

requireBlockchain in class APIServlet.APIRequestHandler