Azure Developer: Submit your Feature requests for Microsoft Graph API User Voice

Have you submitted any of the feature requests for Microsoft Graph API earlier? If yes, then please note that we got a new home for it  microsoftgraph.uservoice.com. Until now, the feature requests were part of the larger Office Dev User Voice. With this move to Microsoft Graph’s own instance of User Voice, each API service…


Office.js web add-in throws HTTP 401 Unauthorized

One of my dev customer, created Outlook Web add-in (using Office.js/JavaScript) and tried calling EWS call (mailbox.makeEWSRequestAsync method). It throws HTTP error 401 for mailbox.makeEWSRequsetAsync() method. They noticed the error or behaviour when they tested with Outlook on the Web and Outlook Web Access for devices. The API call throws, the following HTTP error: “The…


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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Office 365 Graph Developer : Lets use Microsoft Graph Delta Query…

As you aware that Microsoft Graph provides a single API endpoint that gives you access to rich people-centric data and insights, via a number of resources like users and messages. Many applications need to keep track of what’s changing in these data sets, and we recently added support for delta query across a variety of…


Debug: Collecting HTTP/HTTPS traffic using Fiddler Web Debugger tool

As you aware that the Fiddler tool helps you debug web applications by capturing network traffic between the Internet and test computers. The tool enables you to inspect incoming and outgoing data to monitor and modify requests and responses before the browser receives them. So this post provides the steps for capturing HTTP/HTTPS traffic with…