Visual FoxPro

Get the JWS Payload into a StringBuilder

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetPayloadSb, which writes the payload of a loaded JWS as text into a StringBuilder, decoded using the given charset.

Background. In practice, validate the signature before trusting the payload.

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Visual FoxPro

LOCAL lnSuccess
LOCAL loJws
LOCAL lcJwsCompact
LOCAL loSbPayload

lnSuccess = 0

loJws = CreateObject('Chilkat.Jws')

*  Load the JWS compact serialization.
lcJwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>"
lnSuccess = loJws.LoadJws(lcJwsCompact)
IF (lnSuccess = 0) THEN
    ? loJws.LastErrorText
    RELEASE loJws
    CANCEL
ENDIF

*  Get the JWS payload as text into a StringBuilder, decoded using the given charset.
loSbPayload = CreateObject('Chilkat.StringBuilder')
lnSuccess = loJws.GetPayloadSb("utf-8",loSbPayload)
IF (lnSuccess = 0) THEN
    ? loJws.LastErrorText
    RELEASE loJws
    RELEASE loSbPayload
    CANCEL
ENDIF

? loSbPayload.GetAsString()

RELEASE loJws
RELEASE loSbPayload