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Currently the nxt gui generates a QR code for certain pages where you can scan with your phone or another computer to do an air gap transaction. How can you do this via the api?
Generating a QR code using the NXT / Ardor api for scanning
Answers
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https://nxtwiki.org/wiki/The_Nxt_API_Examples#Encode_QR_Code
You can do the following:
http://localhost:7876/nxt?
requestType=encodeQRCode&
qrCodeData=NXT-7A48-47JL-T7LD-D5FS3&
width=100&
height=100
Or via the command line:
curl -d requestType=encodeQRCode -d qrCodeData=NXT-XXX-XXX-XXX-XXX -d width=100 -d height=100 http://localhost:7876/nxt
You can use it in an image tag like this:
< img src="data:image/gif;base64,R0lGODlhEAAQAMQAAO....." width="100" height="100" />