(CkPython) Calendar: Refresh Expired OAuth2 Access Token

Refreshes an expired OAuth2 access token.

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import sys
import chilkat

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

json = chilkat.CkJsonObject()
success = json.LoadFile("qa_data/tokens/msGraphCalendar.json")
if (success != True):
    sys.exit()

req = chilkat.CkHttpRequest()
req.AddParam("grant_type","refresh_token")
req.AddParam("redirect_uri","http://localhost:3017/")
req.AddParam("client_id","MICROSOFT-GRAPH-CLIENT-ID")
req.AddParam("client_secret","MICROSOFT-GRAPH-CLIENT-SECRET")
req.AddParam("refresh_token",json.stringOf("refresh_token"))
req.AddParam("scope","openid profile offline_access user.readwrite calendars.readwrite files.readwrite")

http = chilkat.CkHttp()

# resp is a CkHttpResponse
resp = http.PostUrlEncoded("https://login.microsoftonline.com/common/oauth2/v2.0/token",req)
if (http.get_LastMethodSuccess() != True):
    print(http.lastErrorText())
    sys.exit()

# Load the JSON response.
json.Load(resp.bodyStr())
json.put_EmitCompact(False)

# Show the JSON response.
print(json.emit())

print("Response status code: " + str(resp.get_StatusCode()))

# If the response status code is not 200, then it's an error.
if (resp.get_StatusCode() != 200):
    sys.exit()

# Save the refreshed access token JSON to a file for future requests.
fac = chilkat.CkFileAccess()
fac.WriteEntireTextFile("qa_data/tokens/msGraphCalendar.json",json.emit(),"utf-8",False)

print("Success.")