B4X

Retrieve the Okta JSON Web Keys (JWK)

See more Okta OAuth/OIDC Examples

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.

B4X

Dim success As Boolean = False

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

Dim http As ChilkatHttp
http.Initialize("http")

'  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 ChilkatStringBuilder
sbResponseBody.Initialize
success = http.QuickGetSb("https://dev-765951.okta.com/oauth2/${authServerId}/v1/keys?client_id=$my_client_id", sbResponseBody)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Dim jResp As ChilkatJsonObject
jResp.Initialize
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Log("Response Body:")
Log(jResp.Emit)

Dim respStatusCode As Int = http.LastStatus
Log("Response Status Code = " & respStatusCode)
If respStatusCode >= 400 Then
    Log("Response Header:")
    Log(http.LastHeader)
    Log("Failed.")
    Return
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 Int = 0
Dim count_i As Int = 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