(Visual Basic 6.0) UPS OAuth2 Client Credentials

See more UPS Examples

Get an OAuth2 access token for the UPS REST API using the client credentials flow (no interactivity with a web browser required).

For more information, see https://developer.ups.com/api/reference?loc=en_US#tag/OAuthClientCredentials_other

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 -i -X POST \
'   -u 2498righ8wr6aihe98rt8rhowirtyw9er6twe80rtywrehrt:nerf254578uh8rgt7y3h57358ouyth387h8h53h6yyh80hh578per9y7u5ruyuy4 \
'   https://wwwcie.ups.com/security/v1/oauth/token \
'   -H 'Content-Type: application/x-www-form-urlencoded' \
'   -H 'x-merchant-id: 7B3027' \
'   -d grant_type=client_credentials

' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

http.BasicAuth = 1
http.Login = "2498righ8wr6aihe98rt8rhowirtyw9er6twe80rtywrehrt"
http.Password = "nerf254578uh8rgt7y3h57358ouyth387h8h53h6yyh80hh578per9y7u5ruyuy4"

Dim req As New ChilkatHttpRequest
req.AddParam "grant_type","client_credentials"

req.AddHeader "x-merchant-id","7B3027"

Dim resp As ChilkatHttpResponse
Set resp = http.PostUrlEncoded("https://wwwcie.ups.com/security/v1/oauth/token",req)
If (http.LastMethodSuccess = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Dim sbResponseBody As New ChilkatStringBuilder
success = resp.GetBodySb(sbResponseBody)

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 = resp.StatusCode
Debug.Print "Response Status Code = " & respStatusCode
If (respStatusCode >= 400) Then
    Debug.Print "Response Header:"
    Debug.Print resp.Header
    Debug.Print "Failed."

    Exit Sub
End If

' Save the OAuth2 access token for other examples to use.
success = jResp.WriteFile("qa_data/tokens/ups_oauth2_token.json")

' If successful, the OAuth2 access token JSON looks like this:

' {
'   "token_type": "Bearer",
'   "issued_at": "1686911985606",
'   "client_id": "2498righ8wr6aihe98rt8rhowirtyw9er6twe80rtywrehrt",
'   "access_token": "eyJraW......R2sbqrY",
'   "expires_in": "14399",
'   "status": "approved"
' }

Dim token_type As String
token_type = jResp.StringOf("token_type")
Dim issued_at As String
issued_at = jResp.StringOf("issued_at")
Dim client_id As String
client_id = jResp.StringOf("client_id")
Dim access_token As String
access_token = jResp.StringOf("access_token")
Dim expires_in As String
expires_in = jResp.StringOf("expires_in")
Dim status As String
status = jResp.StringOf("status")