Goal: I'm trying to get all the calendars in my Gsuite org.
Problem: I know I can get a list of calendars using CalendarList.list but that's only if the user or service account has all the calendars in its list and even then it's not always accurate because the calendars don't always get added to the service account's calendar list and a user could potentially remove the calendar from their list.
Question: Is there a way to just grab every calendar in my Google org? Let's say my domain is #someorg.com. I want every user's calendar as well as calendars created through the api. I was thinking this might be possible with the GSuite Admin SDK, but I haven't been able to find anything that allows me to do this. It only handles Resources.calendars which is different than a Calendar object.
Any help appreciated! Thanks!
You need to use the service account to get a token for each user, for this you need each user's email which you can get making a Users.list request [1]. With each token you can do a CalendarList.list request [2] for each impersonated user which will retrieve you the user's calendars it's subscribed to.
You can filter the results to get the calendars with the accessRole [3] field set to owner, if you want the calendars created by the user. You could get the deleted calendars as well by setting the showDeleted parameter to true [2].
[1] https://developers.google.com/admin-sdk/directory/v1/reference/users/list
[2] https://developers.google.com/calendar/v3/reference/calendarList/list
[3] https://developers.google.com/calendar/v3/reference/calendarList
unfortunately you cant. The only way to get a list of calendars that the user has access to is though the calendarlist.list method. The issue with this is that you must be sure that all of the users calendars where actually added to calendarlist which is not always the case.
What you can do is prompt the user asking them to share with you any other calendars but thats not going to work very well with a service account.
Considering the official documentation provided by Workspace(formerly G-Suite), this can be achieved by using service accounts with domain-wide authority delegation.
Please check the documentations below:
Google Calendar API - Domain Resources
Delegating domain-wide authority to the service account
Related
I am using Google API to try to view a user's calendar list, mainly the shared calendars a user had access to. But according to the Google Calendar.List api , I can view only the logged user's calendar. So I wanted to ask if there is a way around this.
The use case that I am working on requires removing any shared calendars of a user whose status has been changed to suspended.
Thanks
DS
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.
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.
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.
Not sure if this is possible or if anyone has managed to do this. I have user with super admin access, with which I can create a new user for my domain. However I also want to add a couple of calenders to the created user's calendar list. When I create a user I authenticate using my super admin, but then I can't add a calendar to the user's calendar list since I am not logged in as the user. Is it possible to do this as the super admin, or do I have to logout and authenticate as the created user in order to add calendars to their list? This is the base url to which the post request is made:
https://www.googleapis.com/calendar/v3/users/me/calendarList
in the place of me could I pass in the id of the user? I couldn't find any parameter in the documentation with which I can specify the user to whose list I want to add a calender.
Thanks
Two options:
Each user much login to google calendar and share thier calendar to a single user. You can then use this account to update their calendars. Note that google has limitations to how many calendars and request you are allowed before the account goes to read-only mode.
Buy a google apps domain (5$per user per month) and create a service account at console.developers.google.com. Create a project and give it domain wide delgation at admin.google.com. In Apps engine you should be able to give access for admin to modify all users calendars.
No matter what case you choose, you also need to enable CalendarAPI at dev console site. Now with private key created from website request OAuth2 access token, where sub field is set for the users that you want to change calendar for. With returned access token use CalendarAPI to modify calendar.
Sry for bad english and short description, i'm in a hurry. /conner ;)