Office 365 Developer – Get the Personal Contacts with Microsoft Graph API

As you aware Outlook contacts lets you store personal contacts’ data, and is part of the Outlook messaging hub in Office 365. Through Outlook, you can manage emails, schedule meetings, find information about users in an organization, initiate online conversations, share files, and collaborate in groups. So now with Microsoft Graph API you can get/pull…


Gotchas – Microsoft Graph/Outlook REST API throttling, best practices

In recent times, I was working with this customer where they make Graph API calls, Say, GET https://graph.microsoft.com/v1.0/users/YYY@XXX.onmicrosoft.com/mailFolders/inbox/messages?$skip=0&$top=30&$select=bodypreview,categories,conversationid,from,hasattachments,id,isdraft,isread,lastmodifieddatetime,parentfolderid,receiveddatetime,replyto,sender,sentdatetime,subject,torecipients and few other GET (read operations of mail folders/single item handles specifically) and few POST/PATCH calls. They noticed, once the throttling threshold is exceeded, Microsoft Graph limits any further requests from that client for a period of…


Fixed: In Exchange Hybrid scenario Microsoft Graph REST API query fails due to $select $top $skips commands ignored

Recently i was working with an app developer who’s using Microsoft Graph REST API in their application. They try to query contacts for Exchange 2016 CU5 on premises in a hybrid + Office 365 environment (they had one single mailbox setup in Office 365). When they tested the Graph API query with $select, $top, $skips…

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Troubleshooting: IIS/Exchange logs and WebDAV functions

You can collect information about client requests by enabling logging for sites and services. IIS logs are stored in %SystemRoot%\system32\Logfiles\<service_name>. If you examine the IIS/Exchange log file you will see the request for the sample application being handled by IIS – you can notice couple of jargons like GET, PUT, POST, MKCOL, LOCK, UNLOCK, PROPFIND,…