B4X Requires Chilkat v11.0.0+

AzureWebsites OAuth2 Password Flow

See more OAuth2 Examples

Demonstrates how to do OAuth 2.0 password flow for azurewebsites.net. B4X

Dim success As Boolean = False

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

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

Dim req As ChilkatHttpRequest
req.Initialize
req.HttpVerb = "POST"
req.Path = "/token"
req.ContentType = "application/x-www-form-urlencoded"
req.AddParam("grant_type", "password")
req.AddParam("username", "your_username")
req.AddParam("password", "your_password")

Dim tokenEndpoint As String = "https://your_api.azurewebsites.net/token"

Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpReq(tokenEndpoint, req, resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


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

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

'  Sample JSON response:

'  {
'    "access_token": "NQGHn ... xTS",
'    "token_type": "bearer",
'    "expires_in": 1209599,
'    "userName": "your_username",
'    ".issued": "Mon, 27 Apr 2020 23:49:35 GMT",
'    ".expires": "Mon, 11 May 2020 23:49:35 GMT"
'  }

Dim respStatusCode As Int = resp.StatusCode
Log("Response Status Code = " & respStatusCode)
If respStatusCode >= 400 Then
    Log("Response Header:")
    Log(resp.Header)
    Log("Failed.")
    Return
End If


'  ----------------------------------
'  Use the OAuth2 token in a request.
'  For example...

Dim sbXml As ChilkatStringBuilder
sbXml.Initialize
success = sbXml.LoadFile("c:/someDir/someXmlFile.xml", "utf-8")
If success = False Then
    Log("Failed to load the XML file.")
    Return
End If


'  Get the OAuth2 token and use it for authentication
http.AuthToken = jResp.StringOf("token")

Dim destUrl As String = "https://your_api.azurewebsites.net/destinationUrl"
success = http.HttpSb("POST", destUrl, sbXml, "utf-8", "application/xml", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


respStatusCode = resp.StatusCode
Log("Response Status Code = " & respStatusCode)
If respStatusCode >= 400 Then
    Log("Response Header:")
    Log(resp.Header)
    Log("Failed.")
    Return
End If


'  Examine the response body
Log(resp.BodyStr)