Errors accessing Shared/Room Calendars through Microsoft Graph API - outlook

I'm making an application that requires access to the shared/room-resource calendars in an Office 365 instance, using non-admin accounts. I've registered an app (in the Microsoft Application Registration Portal) using the V2 endpoint and Auth Code Grant. This successfully allows me to log in, and gives me a functional token with the Calendars.ReadWrite.Shared scope. With this token, I can retrieve my own calendars, and calendars that have been explicitly shared with me (and therefore added to my list of calendars). All of this is doable with just the normal Calendars.ReadWrite scope.
However, I get errors when requesting access to any other shared calendars, like the room calendars. Here's an example. If I make a GET call to https://graph.microsoft.com/beta/users/my-own-email#business.com/calendars it successfully returns a list of my calendars. If I make a GET call to https://graph.microsoft.com/beta/users/meetingroom1.4#business.com/calendars I get a 404 (Not Found) Error. The same error occurs for any other user, not just meeting rooms. Note that I can see these calendars when I'm logged into Office 365 online with the same account.
A different error occurs if I ask for events not calendars. If I make a GET call to https://graph.microsoft.com/beta/users/meetingroom1.4#business.com/events, I get a 500 (Internal Server) Error.
I've checked all the other threads I can find on the issue, and this one from November How to access shared calendars from Office REST API? says there's some kind of blocking issue on Microsoft's end. It's using the Office REST API rather than Graph, but on the back-end the APIs call the same stuff. Is this issue still about? Alternatively, am I missing some further permissions? I tried adding quite a few different permissions on top of Calendars.ReadWrite.Shared, but none of them fixed it. Is there a correct combination?
Thanks so much for any help, and let me know if any other info would be useful for diagnosis.

So if anyone else happens to be interested in this, I figured out a way to access room resource calendars without using the Calendars.ReadWrite.Shared permission. This allows you to use just the Calendars.ReadWrite permission to access the room resources, by moving them into the list of calendars of the email you're authenticating with. However, it will only work for specific accounts that you share the calendars with, so won't be usable in apps that have to work for any account. This is good enough for my use-case, but may not be for yours.
First, find or make an account that is a delegate to, and has full access to, the room resource calendar you want to use. On that account click 'Open another mailbox' in the dropdown list under your profile image.
Open another mailbox location
In the pop-up that follows, put in the email address of the room resource calendar that you want to use.
Then, on the new page that opens (which should be the Office account of the room resource calendar):
Navigate to the calendar page
Click 'Share'
Share the default calendar with the account you plan to authenticate with.
Then log into that 'authentication' account, check its email for the notification of the shared calendar, and click 'accept'. What this will do is move the calendar into the authenticated account's list of calendars, meaning you can access it with just a call to the https://graph.microsoft.com/v1.0/me/calendars endpoint. You'll have to repeat it for every calendar you want to be able to access, sadly.

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Google API Authentication for App That Only Accesses One Account

Should I use a Service Account or an OAuth 2.0 Client ID?
I'm struggling to understand Google's documentation on authenticating for their APIs. I'm creating a basic application that will help users add and modify Google Calendar events for a single Google account (the account is shared between all users). I only need the application to access that one account, it'll never need to access any others.
It seems to me that Service Account would be best for this, but Google's documentation suggests Service Accounts should only be used for automated processes (unless I'm misunderstanding). For instance this page contains the following, describing when to use Service Accounts.
Would my application qualify as acting on the users behalf?
If so, I would want to use OAuth Client ID credentials, which will ask the user to sign in to a google account. In this case, is there a way I can guarantee they only sign in to the one account I want modified?
I can't find any decent documentation on the OAuth authentication requests to figure this out myself. If there is any could you point me there?
I'm sure I'm misunderstanding something basic here, but thank you for any help!
First off you should know that you can only use service accounts with Google aclendar api if you have a google workspace domain account.
You can then set up a calendar and a domain user that the service account can act on behalf of to control the access of that calendar.
Assuming that your application is going to preform all actions on this calendar then yes i would say that you could use a service account for this. If your app bacly has a ui with a calendar on it your just using google calendar to store the data.
However if you intend to share this calendar with the users themselves, this way they could see it within their own google Calendar account. Im not sure a service account would be the way to go.
If you want the users to be able to see it and make changes then you may want to just use Oauth2. Grant them access to the calendar and then request access to their calendar account.
Drawback to that option is going to be the verification process. You will get access to all the users calendars and your going to need write access.
If you can go with a service account you really should consider it it will save you a lot of hassle with verification.

How to get all users third-party sign-in events in Google Workspace?

I want to get all the sign up & sign in with Google events of my Google Workspace users using API.
I can see the Tokens activity from my Google Workspace admin account, under the audit log (https://admin.google.com/u/5/ac/reporting/audit/token), but it's limited to first sign ups, and doesn't show any of the following sign in events of my users.
Is there any way to see all the events related to third parties sign ins / sign ups of my users? is there any place that lists the summary of all of the third parties linked to users in my organization?
As far as a summary, you can retrieve a list of applications authorized by your users using the Directory API tokens.list method.
Unfortunately when it comes to OIDC sign in events, there currently is no way to see when users are logging into a 3rd party application. You will see activity events for tools accessing Google APIs, but not for login.
I guess you could use tokens.delete to revoke access, making the users re-authorize to log in again (which will be logged). But that's a rather heavy handed approach.
I think I've found what you're after:
https://developers.google.com/admin-sdk/reports/v1/guides/manage-audit-tokens
You can use this api call to retrieve all authorization events for third party applications.
The general format of such requests is below (parameters are surrounded by a double asterix)
GET https://www.googleapis.com/admin/reports/v1/activity/users/all
/applications/token?endTime=**end date**&startTime=**start date**
&maxResults=**maximum number of events returned on a response page**
Hopefully this gets you the info you want. I don't have access to a google admin account myself so I can't test this api call.

Google service account email does not show up when trying to share a google calendar

I'm trying to set up a google service account for Google Calendar API to create and update events for my specific calendar.
I've set up my service account, got the credential keys and also enabled the domain wide delegation. For most of the part it does work, however I can not access my specific calendar (not able to share it with my service account).
When I paste the service account email to the share textbox in google calendar settings it does not show anything to add.
This is a really frustrating blocker, so if anyone has encountered this or has any insights it would be greatly appreciated :)
You do not need to explicitly share your calendar with the service account.
If you want to create an event with your service account for your calendar, you need to set up your service account in such a way that it impersonates you.
The official Google documentation gives examples of how to perform Perform G Suite Domain-Wide Delegation in different languages. It is also important to do so in Apps Script.
Important: In your Admin console you need to Manage API client access and give the service account the necessary scope
(https://www.googleapis.com/auth/calendar.events) to create events on
your behalf.

Google+ API - Moments visibility

I am currently researching Google+ REST API to post to a user's stream.
The basic requirements are:
The post should be created without user's review using server side request (user should give his permission to post on his behalf in the future).
The post must be visible to all user's friends.
As i understand from reading the documentation, posting to the stream without actually getting permission in creation time from the user is impossible, however, creating 'moments' doesn't require permission upon-posting, so the user should give his permission when authorizing the app.
Since i didn't find anything that explains how can a moment be created to be visible to all user's friends - can someone who is familiar with this API explain how visibility of a moment is being determined and on which step? reference to an API documentation would be good as well, but i didn't find any.
Thanks
The moment methods do not write directly to a user's Google+ stream. They instead write to a user's profile, and are not necessarily viewable by others depending on the user's preferred sharing settings.
Manage app activities in Google
During authorization the user chooses who their activity is visible to.
Once authorized a user should be able to see their own activities on Google+ and you can view other people's activities by clicking on an app from their profile about page.

access shared Google Calendar without entering userid/password

I have a google calendar that I have marked as shared. it stores all appointments for the day.
I have a webpage. from the webpage, the user enters a date and I use the google api (javascript) to pull back all info from my shared calendar for that date and present it to the user.
I also want the user to be able to make appointments during free times on any given day.
problem is, I must be signed in to my google account. if I am NOT signed in, I get a little popup asking for my userid/password.
how do I get rid of that? I had hoped that making the calendar shared and specifying the client ID and api key (assigned via Google's API Console) would have been enough.
I've run across this: http://cornempire.net/2012/01/08/part-2-oauth2-and-configuring-your-application-with-google/ which explains doing this via Oath and refresh tokens in PHP.
unfortunately, I'm doing this in javascript and MUST do it from the client side. is that possible?
I think you should look into using a service acccount for this.
http://code.google.com/p/google-api-php-client/wiki/OAuth2#Service_Accounts
By using a service account you wont have to worry about people loging in. They will have access to the calender for the service account.
Update: I have searched for examples of how to do this in Javascript and have been unable to find any. After considering this issue for a while now i have come to the conculsiton that even if you could use a service account via javascript for security reasons its probably not a good idea.
Unfortuantly this leaves me to beleave that the anwser to your question is No. You cant do this client sided. If you use normal OAuth2 its still going to prompt you for the autentication. You need to try and reconsider a server sidded option. PHP for example

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