I'm trying to set up a Service Account that can access the GMail API, but for security purposes I want it limited to only a single mailbox (I don't want the development team to have full access to all mailboxes in the organization.)
My understanding of how Google handles service accounts and permissions is limited. I can't seem to find specific details about how this would be set up. I have set up a service account with client ID and secret. And I have associated that with an API client that has the GMail read-only scope. But how does that get associated with a specific mailbox? I do see a setting that allows "domain wide delegation", which seems concerning.
Maybe I'm just not understanding this correctly, but does that mean this service account can now read the contents of all mailboxes in the GSuite account?
How do I make sure this service account is limited to the one mailbox I want it to access?
I think you are talking about user impersonation using the service account. I am afraid that it is not possible to limit the access that the service account can have. The only possible limitations is related to the creations of credentials on the project and things like that, but if a service account has domain wide delegation to do user impersonation, then it is not possible to set up limitations to it.
You can find more info about the possible limitations here https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts
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What is delegated in Msgraph api. Does it mean we can't use it by creating app on Azure Active Directory.
https://learn.microsoft.com/en-us/graph/api/application-post-calls?view=graph-rest-1.0&tabs=http#permissions
I want to use online meeting and call apis without my customers to register teams or microsoft
Delegated permissions are used to call APIs on behalf of a signed-in user.
If an API only supports them, a user will have to sign in to your application so that you can call the API on their behalf.
Refresh tokens allow you to do this for a long time without requiring the user to interact with the app, but those can and do expire.
Another choice might be to use the ROPC flow, but that requires you to use a username and password to get tokens, and that user cannot have MFA enabled for example (one of many cases where ROPC does not work).
There are two primary mechanisms that an application can use to access the Graph. The one is an "Application" approach, where it needs to be given access rights by an administrator, and can then access certain services / endpoints. There's often an "app secret" that is used in conjunction with the application "Id". This is kind of similar in the past to how we would have created a specific 'service' account + password. ROPC is even more similar, and actually -does- require a username + password, but it's not generally recommended.
The other is "delegated", which means that the application can access certain resources that are specific to that user (like their own mailbox for example). In this case, the user themselves might be required to 'approve' the application's right to access the graph on his/her behalf.
Note that BOTH of these options involve the use of an Azure AD Application, but which permission option you can use depends on the specific operation in the Graph that you're interested in calling. As an example, let's say you wanted to access the list of members in a Teams team. This is explained here, where the "permissions" section indicates that either Application or Delegated permissions can be used to do this. In contrast, here is another operation that can ONLY be done with Delegated permissions, and not by a standalone application without a user granting access.
I'm building an app using which the users registered(from the IAM page) for the project can access the resources of that project. I need the authentication when the URL is hit. Is there a way to achieve this?
Is it possible to provide IAM roles specific for a user request (assuming that the user will login using his email id) to access the resources based on IAM level permissions?
In the early days of AppEngine it was pretty easy to do some basic auth/access-control, but lately they're moving it to something called IAP.
From your wording I am assuming you are trying to abstract administrative tasks of a GCP project to lesser privileged administrators.
Questions 1 and 2 can be quickly solved by defining privileges in IAM using a pre-built roles or creating a custom role if you need to be more specific. Hereby you can use GSuite, GMail, Google Group accounts and let them sign into console.cloud.google.com. They will consequently only be able to see and act upon what you've assigned to them to in IAM.
If you still want to go through with building it yourself, every product does provide an API including authentication. Best practice for your use case is to instead of assigning an individual user access to a resource, you rather create a service account and then allow the user to call that service account. For this GCP has the Service Account Actor Role described well in the official documentation and also Salmaan Rashid provides a good practical insight on medium.
We have a bit of a dilemma that we are running into with a couple applications that are trying to read a given users email without user interaction to authorize. The key to this approach is that we want no user interaction, and want to load the client server application with the proper JSON credentials downloaded from the Google Developer Console.
I have this approach working for programs where we create a service account in the Developer Console, and then delegate domain wide authority to that account with the proper scope access. However what we are hoping is that we don't have to delegate domain wide authority, and just read the users email who created this developer console project. I have tried many different types of solutions for this, but always run into the same limitation that I have to grant domain wide access.
What I am wondering is if there is any way to gain access to a single users mailbox using a server to server type approach and not have to grant domain wide access?
I appreciate your help with this issue!
There is no supported authorization flow for what you want to do. You must either use a service account that has been delegated domain-wide authority, or you must use a 3LO flow that involves user consent.
It seems you're looking for OAuth for Server to Server Application. You will also be using a service account. But, granting of domain-wide authority for service accounts is an optional thing. You don't have to enable it if you don't want to.
To support server-to-server interactions, first create a service
account for your project in the Developers Console. If you want to
access user data for users in your Google Apps domain, then delegate
domain-wide access to the service account.
Then, your application prepares to make authorized API calls by using
the service account's credentials to request an access token from the
OAuth 2.0 auth server.
Finally, your application can use the access token to call Google
APIs.
I have a google business apps account.
My requirement is to scan all emails of my support email and process them.
This has to be done on the server side without any manual interaction.
I am able to make this work with IMAP, but i am looking at making this work with Google API.
This doesn't work with the Google API unless i do manual client consent.
Or i need to use the service account, in which case i have to get a domain wide access although my requirement is only for one email id. This is against my company's information security policy hence cannot use this option.
Require help on how i can use Google API to do the integration between my server and gmail server at a individual email account level. Any suggestions?
I'm working with the Google+ Domains API using a service account for domain wide delegation. Unfortunately, we're having difficulties with our client regarding the authorization model, because in theory we have access to all G+ data (even from the CEO etc..), while they would like to exclude a group of people.
Is this possible? Otherwise, only thing is to expect the developers to not abuse of their rights?
Not possible. You could use regular 3legged during development (store each user's permissions) and switch to domain-wide at the end under client supervission. Then leave the appengine without any developers on your side, only one client account that has control and gives you permission to develop as needed later.