How to retrieve my Gmail messages using Gmail API?

Question

What I want to achieve:

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I\'m using the Gmail API and basically I would like to connect to my GMail account to read my emails, of INBOX categ

Answer 1

The user parameter in GoogleWebAuthorizationBroker.AuthorizeAsync is just used by FileDatastore to store your credentials check my tutorial Google .net – FileDatastore demystified for more information.

My VB.net is very rusty like 6 years rusty but in C# you could do something like this

UsersResource.MessagesResource.ListRequest request = service.Users.Messages.List("Users email address");
var response = request.Execute();

foreach (var item in response.Messages) {
     Console.WriteLine(item.Payload.Headers);            
 }

MessageResource.ListRequest returns a list of message objects you can loop though them.

Users.Messages contains header which should have the subject and the to and from.

I also have a really old C# tutorial on gmail that might help.

Update to answer your update:

What happens when you remove:

.LabelIds = New Repeatable(Of String)({folder.Id})

labelIds string Only return messages with labels that match all of the specified label IDs.

It appears you are sending a folder id. try using user.lables.list which returns Lists all labels in the user's mailbox