Converting callback async calls to RxJava

Using RxJava’s Observable.fromAsync() to convert asynchronous APIs while properly dealing with backpressure

Yammer iOS App ported to Swift 3

Since the introduction of Xcode 8 in late September, Swift 3 has become the default version to develop iOS and Mac OS apps.

As an iOS shop, we had to consider a migration project to port our codebase from 2.3 to 3 while maintaining a good…

Handling generic Http errors across your Android app

Using Otto and Retrofit to log out users when receiving 401 error responses from the API

ActiveRecord stole my data and now I want it back!

David Waller

Android GCM push notifications registration done right

Re-register GCM push notifications on app upgrade with MY_PACKAGE_REPLACED

When implementing push notifications using GCM (Google Cloud Messaging) on Android…

Testing PostgreSQL scripts with RSpec and pg_tester

Neeran Gul

At Yammer, we run more than a dozen different PostgreSQL clusters supporting our Production applications. As with most databases, we run regular maintenance tasks such as rotating user credentials…

Yammer Datacenter Networking with BGP and BIRD

It’s been 4 years since Microsoft acquired Yammer, and we easily remember how being acquired was our springboard into a bustle of structural adaptations. An acquisition by such a large company alone presents all kinds of new and exciting…

Mock Away Android Application Dependencies

Daniel Robertson

At Yammer we run a full suite of tests against our Android application dozens—sometimes hundreds—of times per day. Our goal is to have a feedback loop so fast that our developers are made aware of any…