Create calendar event using ruby outlook - ruby-on-rails

Question

I am trying create a event in calendar,
Iam able get all the data like calendar,contacts and emails by following below documentaion,
https://learn.microsoft.com/en-us/outlook/rest/ruby-tutorial,
But when try to create a event using ruby_outlook getting below error
{"ruby_outlook_error"=>401,
"ruby_outlook_response"=>{"error"=>{"code"=>"InvalidAudience", "message"=>"The audience claim value is invalid 'aud'.",
"innerError"=>{"requestId"=>"75984820-5241-11ea-b6fc-fc4dd44c1550", "date"=>"2020-02-18T11:26:08"}}}}
Below code is for creating event
def def index
token = get_access_token //getting access token
if token
outlook_client = RubyOutlook::Client.new
event_payload =
{
"Subject": "Discuss the Calendar REST API",
"Body": {
"ContentType": "HTML",
"Content": "I think it will meet our requirements!"
},
"Start": {
"DateTime": "2020-03-03T18:00:00",
"TimeZone": "Pacific Standard Time"
},
"End": {
"DateTime": "2020-03-03T19:00:00",
"TimeZone": "Pacific Standard Time"
},
"Attendees": [
{
"EmailAddress": {
"Address": "john#example.com",
"Name": "John Doe"
},
"Type": "Required"
}
]
}
outlook_client.create_event(token, event_payload, nil, 'user#domain.com')
end
end

Answer 1

Your issue is that the token that you fetched was using the Microsoft graph API but now you are trying to create an even through the Outlook API. You cannot use a token issued for Graph ("aud": "graph.microsoft.com") against the Outlook endpoint. You need a token with "aud": "outlook.office.com".Better is use the graph API itself using the graph gem to create an event since you already have the token fetched from it.
To do that first create the MicrosoftGraph object
def create_service_auth
access_token = get_access_token
callback = Proc.new do |r|
r.headers['Authorization'] = "Bearer #{access_token}"
r.headers['Content-Type'] = 'application/json'
r.headers['X-AnchorMailbox'] = "#{ email_of_calendar_for_which_to_create_the_event }"
end
#graph = ::MicrosoftGraph.new(base_url: 'https://graph.microsoft.com/v1.0',
cached_metadata_file: File.join(MicrosoftGraph::CACHED_METADATA_DIRECTORY, 'metadata_v1.0.xml'),
&callback)
end
Then create the event -
def create_event
event = {
subject: summary,
body: {
content_type: "HTML",
content: description
},
start: {
date_time: start_time,
time_zone: timezone
},
end: {
date_time: end_time,
time_zone: timezone
},
response_requested: true,
organizer: {emailAddress: { name: "#{organizer.full_name}", address: email_of_calendar_for_which_to_create_the_event }},
attendees: [
{
email_address: {
address: attendee_email,
name: "#{attendee.full_name}"
},
type: "required"
}
]
}
result = #graph.me.events.create(event)
end