(Excel) 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

Download Excel Class Modules Chilkat Excel Class Modules

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

Dim http As Chilkat.Http
Set http = Chilkat.NewHttp

' 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 Chilkat.StringBuilder
Set sbResponseBody = Chilkat.NewStringBuilder
success = http.QuickGetSb("https://dev-765951.okta.com/oauth2/${authServerId}/v1/keys?client_id=$my_client_id",sbResponseBody)
If (success = False) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Dim jResp As Chilkat.JsonObject
Set jResp = Chilkat.NewJsonObject
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

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


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


i = 0

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