Lianja Requires Chilkat v11.0.0+

ABN AMRO Create Signed JSON Web Token

See more ABN AMRO Examples

Demonstrates how to create a signed JWT to be used for authenticating requests to the ABN AMRO REST API's. Lianja

llSuccess = .F.

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  Create public/private key pair (RSA)
loRsa = createobject("CkRsa")

//  Generate a 2048-bit key.
loPrivkey = createobject("CkPrivateKey")
llSuccess = loRsa.GenKey(2048,loPrivkey)
if (llSuccess = .F.) then
    ? loRsa.LastErrorText
    release loRsa
    release loPrivkey
    return
endif

//  Export the key to PEM files.
//  Write one PEM file for the private key, and one for the public key.
llSuccess = loPrivkey.SavePemFile("qa_data/pem/abnAmroPrivateKey.pem")

loPubkey = createobject("CkPublicKey")
loPrivkey.ToPublicKey(loPubkey)
llSuccess = loPubkey.SavePemFile(.T.,"qa_data/pem/abnAmroPublicKey.pem")
//  Note: Please share your public key along with your app name and developer email id at api.support@nl.abnamro.com. 
//  Token generation will not work unless public key is associated with your app.

//  Create the JWT.
loJwt = createobject("CkJwt")

//  Create the header:
//  {
//      "typ": "JWT",
//      "alg": "RS256"
//  }
loJsonHeader = createobject("CkJsonObject")
loJsonHeader.UpdateString("typ","JWT")
loJsonHeader.UpdateString("alg","RS256")

//  Create the payload:
//  {
//      "nbf": 1499947668,
//      "exp": 1499948668,
//      "iss": "me",
//      "sub": "anApiKey",
//      "aud": "https://auth-sandbox.abnamro.com/oauth/token"
//  }
loJsonPayload = createobject("CkJsonObject")

lnCurDateTime = loJwt.GenNumericDate(0)

//  Set the "not process before" timestamp to now.
llSuccess = loJsonPayload.AddIntAt(-1,"nbf",lnCurDateTime)

//  Set the timestamp defining an expiration time (end time) for the token
//  to be now + 1 hour (3600 seconds)
llSuccess = loJsonPayload.AddIntAt(-1,"exp",lnCurDateTime + 3600)

loJsonPayload.UpdateString("iss","me")
loJsonPayload.UpdateString("sub","anApiKey")
loJsonPayload.UpdateString("aud","https://auth-sandbox.abnamro.com/oauth/token")

//  Produce the smallest possible JWT:
loJwt.AutoCompact = .T.

lcJwtStr = loJwt.CreateJwtPk(loJsonHeader.Emit(),loJsonPayload.Emit(),loPrivkey)
if (loJwt.LastMethodSuccess = .F.) then
    ? loJwt.LastErrorText
    release loRsa
    release loPrivkey
    release loPubkey
    release loJwt
    release loJsonHeader
    release loJsonPayload
    return
endif

//  Here is the JWT:
? lcJwtStr


release loRsa
release loPrivkey
release loPubkey
release loJwt
release loJsonHeader
release loJsonPayload