为此 API 选择标记为最低特权的权限。
只有在应用需要它时，才使用更高的特权权限。 有关委派权限和应用程序权限的详细信息，请参阅权限类型。 要了解有关这些权限的详细信息，请参阅 权限参考。
权限类型
最低特权权限
更高特权权限
委派（工作或学校帐户）
Mail.ReadBasic
Mail.Read、Mail.ReadWrite
委派（个人 Microsoft 帐户）
Mail.ReadBasic
Mail.Read、Mail.ReadWrite
应用程序
Mail.ReadBasic.All
Mail.Read、Mail.ReadWrite
HTTP 请求
若要获取指定 mailFolder 中邮件中的所有更改，请执行以下操作：
GET /me/mailFolders/{id}/messages/delta
GET /users/{id}/mailFolders/{id}/messages/delta
若要专门获取在指定的 mailFolder 中创建、更新或删除的邮件，请执行以下操作：
GET /me/mailFolders/{id}/messages/delta?changeType=created
GET /users/{id}/mailfolders/{id}/messages/delta?changeType=created
GET /me/mailFolders/{id}/messages/delta?changeType=updated
GET /users/{id}/mailFolders/{id}/messages/delta?changeType=updated
GET /me/mailFolders/{id}/messages/delta?changeType=deleted
GET /users/{id}/mailFolders/{id}/messages/delta?changeType=deleted
GET https://graph.microsoft.com/v1.0/me/mailFolders/AAMkAGVmMDEzMTM4LTZmYWUtNDdkNC1hMDZiLTU1OGY5OTZhYmY4OAAuAAAAAAAiQ8W967B7TKBjgx9rVEURAQAiIsqMbYjsT5e-T7KzowPTAAAAAAFNAAA=/messages/delta
Prefer: odata.maxpagesize=2
// Code snippets are only available for the latest version. Current version is 5.x
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Me.MailFolders["{mailFolder-id}"].Messages.Delta.GetAsDeltaGetResponseAsync((requestConfiguration) =>
{
requestConfiguration.Headers.Add("Prefer", "odata.maxpagesize=2");
});
// Code snippets are only available for the latest major version. Current major version is $v1.*
// Dependencies
import (
"context"
abstractions "github.com/microsoft/kiota-abstractions-go"
msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
graphusers "github.com/microsoftgraph/msgraph-sdk-go/users"
//other-imports
)
headers := abstractions.NewRequestHeaders()
headers.Add("Prefer", "odata.maxpagesize=2")
configuration := &graphusers.ItemMailFolderItemMessagesDeltaWithRequestBuilderGetRequestConfiguration{
Headers: headers,
}
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=go
delta, err := graphClient.Me().MailFolders().ByMailFolderId("mailFolder-id").Messages().Delta().GetAsDeltaGetResponse(context.Background(), configuration)
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
var result = graphClient.me().mailFolders().byMailFolderId("{mailFolder-id}").messages().delta().get(requestConfiguration -> {
requestConfiguration.headers.add("Prefer", "odata.maxpagesize=2");
});
Import-Module Microsoft.Graph.Users.Functions
# A UPN can also be used as -UserId.
Get-MgUserMailFolderMessageDelta -UserId $userId -MailFolderId $mailFolderId
# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
from msgraph.generated.users.item.mail_folders.item.messages.delta.delta_request_builder import DeltaRequestBuilder
from kiota_abstractions.base_request_configuration import RequestConfiguration
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python
request_configuration = RequestConfiguration()
request_configuration.headers.add("Prefer", "odata.maxpagesize=2")
result = await graph_client.me.mail_folders.by_mail_folder_id('mailFolder-id').messages.delta.get(request_configuration = request_configuration)