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Get the JWS Payload into BinData

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Demonstrates Jws.GetPayloadBd, which writes the payload of a loaded JWS as raw bytes into a BinData.

Background. This is used when the payload is binary. In practice, validate the signature before trusting the payload.

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llSuccess = .F.

loJws = createobject("CkJws")

//  Load the JWS compact serialization.
lcJwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>"
llSuccess = loJws.LoadJws(lcJwsCompact)
if (llSuccess = .F.) then
    ? loJws.LastErrorText
    release loJws
    return
endif

//  Get the JWS payload as raw bytes into a BinData.
loBdPayload = createobject("CkBinData")
llSuccess = loJws.GetPayloadBd(loBdPayload)
if (llSuccess = .F.) then
    ? loJws.LastErrorText
    release loJws
    release loBdPayload
    return
endif

? "Payload is " + str(loBdPayload.NumBytes) + " bytes."


release loJws
release loBdPayload