(Ruby) Calendar: Refresh Expired OAuth2 Access Token

Refreshes an expired OAuth2 access token.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

json = Chilkat::CkJsonObject.new()
success = json.LoadFile("qa_data/tokens/msGraphCalendar.json")
if (success != true)
    exit
end

req = Chilkat::CkHttpRequest.new()
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.new()

# 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() + "\n";
    exit
end

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

# Show the JSON response.
print json.emit() + "\n";

print "Response status code: " + resp.get_StatusCode().to_s() + "\n";

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

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

print "Success." + "\n";