Turn a list of POAP claim URLs into a NXP TagWriter json-like format for iPhone NFC ntag213

poap2nfc.py

import ndef
import sys

# The NXP app expects an exact format of the following, including whitespace and quotes
#[
#  {
#    "type" : "55",
#    "mirrorparameters" : "",
#    "date" : 1655959791718,
#    "bytes" : "03504f41502e78797a2f636c61696d2f7075676a6173",
#    "id" : 1,
#    "tnf" : "01",
#    "title" : ""
#  }
#]


if(len(sys.argv) <= 1):
    print("Must specify a POAP file")
    sys.exit(1)
print("Opening POAP file:",sys.argv[1])
poapfile = open(sys.argv[1],'r')
nfcfile=open(sys.argv[1]+".json","w")
nfcfile.write("[\n  ")
lines = poapfile.readlines()
first=True
for line in lines:
    record1 = ndef.UriRecord(line.strip())
    poaphex=record1.data.hex()
    if(not first):
        nfcfile.write(",\n  ")
    nfcfile.write("{\n    \"type\" : \"55\",\n    \"mirrorparameters\" : \"\",\n    \"date\" : 1655959791718,\n    \"bytes\" : \""+poaphex+"\",\n    \"id\" : 1,\n    \"tnf\" : \"01\",\n    \"title\" : \"\"\n  }")
    first=False
nfcfile.write("\n]\n")