Tcl

Get the JWS Payload as a String

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetPayload, which returns the payload of a loaded JWS as text, decoded using the given charset.

Background. In practice, validate the signature before trusting the payload. Getting the payload retrieves the signed content.

Chilkat Tcl Downloads

Download Chilkat for Tcl

Tcl


load ./chilkat.dll

set success 0

set jws [new_CkJws]

#  Load the JWS compact serialization.
set jwsCompact "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>"
set success [CkJws_LoadJws $jws $jwsCompact]
if {$success == 0} then {
    puts [CkJws_lastErrorText $jws]
    delete_CkJws $jws
    exit
}

#  Return the JWS payload as text, decoded using the given charset.
set payload [CkJws_getPayload $jws "utf-8"]
if {[CkJws_get_LastMethodSuccess $jws] == 0} then {
    puts [CkJws_lastErrorText $jws]
    delete_CkJws $jws
    exit
}

puts "$payload"

delete_CkJws $jws