Microsoft Graph API developer – Using GetSchedule API to get free/busy availability information

Now you can use the GetSchedule API (when I publish this article, its available in /beta endpoint) to get the free/busy availability information for a collection of users, distributions lists, or resources, for a specified time period. You can use it simply by calling, POST /me/calendar/getSchedule POST /users/{id|userPrincipalName}/calendar/getSchedule Let me play with this API call…

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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…


Azure/Office 365 Graph API developer: RefreshToken, AccessToken, IdentityToken

These are 3 common terms (Refresh Token, Access Token, Identity Token) in Azure/Office 365 Graph API Cloud developer world and we get tons of queries on this. So let me try to explain them in simple terms … Access Token:- The access token is attached to every REST API request in the authorization header. -…


Introducing Open Live Writer – Open Source Fork of Windows Live Writer

Windows Live Writer released as the open source Open Live Writer. It’s a great day for bloggers who have a favorite tool for creating content. Yes I use Windows Live Writer for my blogging and it changed my way of blogging. Today Microsoft announced that Open Live Writer was released and has been contributed to…


Getting started with EWS Java API

As you know the EWS Java API, a java client library to access Exchange Web Services (EWS) – a SOAP-based API and you can use it from Java or any other language that lets you POST XML data over HTTP. The API works against Office 365 Exchange Online as well as on premises Exchange Server….

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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,…