Chilkat Examples

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Visual Basic 6.0 Web API Examples

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(Visual Basic 6.0) Retrieve the Okta JSON Web Keys (JWK)

Demonstrates how to get the Okta web keys (JWK) that will be needed to locally validate an access token. This example is for the case where Okta is the identity platform for your App or API. (See https://developer.okta.com/docs/reference/api/oidc/#composing-your-base-url)

Note: This example uses the URL

https://dev-765951.okta.com/oauth2/${authServerId}/v1/authorize

If you have a developer account, you can use the default authorization server that was created along with your account, in which case the full URL looks like this:

https://dev-765951.okta.com/oauth2/default/v1/authorize

Also: You'll need to change "dev-765951" to use your own Okta domain.

For more information, see https://developer.okta.com/docs/reference/api/oidc/#keys

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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

Dim http As New ChilkatHttp
Dim success As Long

' Implements the following CURL command:

' curl -X GET \
' https://dev-765951.okta.com/oauth2/${authServerId}/v1/keys?client_id=$my_client_id

Dim sbResponseBody As New ChilkatStringBuilder
success = http.QuickGetSb("https://dev-765951.okta.com/oauth2/${authServerId}/v1/keys?client_id=$my_client_id",sbResponseBody)
If (success = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Dim jResp As New ChilkatJsonObject
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

Debug.Print "Response Body:"
Debug.Print jResp.Emit()

Dim respStatusCode As Long
respStatusCode = http.LastStatus
Debug.Print "Response Status Code = " & respStatusCode
If (respStatusCode >= 400) Then
    Debug.Print "Response Header:"
    Debug.Print http.LastHeader
    Debug.Print "Failed."
    Exit Sub
End If

' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "keys": [
'     {
'       "kty": "RSA",
'       "alg": "RS256",
'       "kid": "anSaRDPfWGOSCVNZEIZB9quCbNsdsvl5uWGBzxbudWQ",
'       "use": "sig",
'       "e": "AQAB",
'       "n": "jT8uAgd5wF7d3aiCjdxbVXk7EDio2ScqAjWCL2LXbY3bpj6RV4dswZTqBg0-vuIh1SBqjoufDV3fHAJcewv2dfEdfUKawBxTIcLgeSu_NoUsZ6zmHqYKC9U0awgP3s5_Yqcr7YMxurrPRNRdKNsFFF2lhCDJ-4gCO4CWiCUdptlmMfI7_pBxx9bgh1F-ulVKt_RUo-4A7tXwwJhBhWaECKoye04BACccSNkth8flGSvjXNIVKcAMHYQ3oDfB6U5zXcFuDVEBJI__hzA9920QRXrloIv_G0QmYgbaf4iRpd-3B6-PQ4-VK-FGm3t9eTwoFv6CARpyXrjaOeuLB1HaVw"
'     }
'   ]
' }

' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON

Dim kty As String
Dim alg As String
Dim kid As String
Dim use As String
Dim e As String
Dim n As String

Dim i As Long
i = 0
Dim count_i As Long
count_i = jResp.SizeOfArray("keys")
Do While i < count_i
    jResp.I = i
    kty = jResp.StringOf("keys[i].kty")
    alg = jResp.StringOf("keys[i].alg")
    kid = jResp.StringOf("keys[i].kid")
    use = jResp.StringOf("keys[i].use")
    e = jResp.StringOf("keys[i].e")
    n = jResp.StringOf("keys[i].n")
    i = i + 1
Loop

 

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