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Today, we're thrilled to host Jacob Kaplan-Moss. Jacob's a former Herokai and long-time core contributor to Django, and he's here to share an in-depth look at something that he believes will define the future of the framework.

When Django was created, over ten years ago, the web was a less complicated place. The majority of web pages were static. Database-backed, Model/View/Controller-style web apps were the new spiffy thing. Ajax was barely starting to be used, and only in narrow contexts.

The web circa 2016 is significantly more powerful. The last few years have seen the rise of the so-called “real-time” web: apps with much higher interaction between clients and servers and...


Starbot

Whether they're publishing notifications, responding to /slash commands or carrying a conversation, bots have become an integral part of the way we work with Slack. A bot can do any number of things for your team as part of your day-to-day work, you're only limited by your imagination. For some first-hand experience, check out the Heroku Button Gallery, where users have created all types of bots: from fun bots like poker and Jeopardy!, to more practical ones like a bot that tracks the satisfaction of your team members or one that reminds your team to review existing pull requests.

That said, the real power and fun of Slack bots comes once you know how to build your own. In this...


A common challenge when building microservices is providing a unified interface to the consumers of your system. The fact that your services are split into small composable apps shouldn’t be visible to users or result in substantial development effort.

To solve this problem, Netflix (a major adopter of microservices) created and open-sourced its Zuul proxy server. Zuul is an edge service that proxies requests to multiple backing services. It provides a unified “front door” to your system, which allows a browser, mobile app, or other user interface to consume services from multiple hosts without managing cross-origin resource sharing (CORS) and authentication for each one. You can...


Last week MailChimp announced that they are shutting down the Mandrill Heroku Add-on, giving users until April 27th to migrate to another solution. Many of our customers have sought guidance on how and where to migrate, so we have asked our email providers to create guides for migrating from the Mandrill add-on to their respective services.

Mailgun: Migrating from the Heroku Mandrill Add-on to the Mailgun Add-on

Postmark: Migrating your Mandrill Heroku Add-on to Postmark

SendGrid: Replacing the Mandrill Heroku Add-on with the SendGrid Add-on

SparkPost: Migrating from Mandrill to SparkPost on Heroku


I spend most of my time at Heroku working on our support tools and services; help.heroku.com is one such example. Heroku's help application depends on the Platform API to, amongst other things, authenticate users, authorize or deny access, and fetch user data.

So, what happens to tools and services like help.heroku.com during a platform incident? They must remain available to both agents and customers—regardless of the status of the Platform API. There is simply no substitute for communication during an outage.

To ensure this is the case, we use api-maintenance-sim, an app we recently open-sourced, to regularly simulate Platform API incidents.

this-is-fine

Simulating downtime

During a Platform...


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