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Apache OpenWhisk

Apache OpenWhisk is a serverless cloud platform that executes code in response to events

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James Thomas in Apache OpenWhisk

Feb 26, 2019

OpenWhisk Web Action Errors With Sequences

This week, I came across an interesting problem when building HTTP APIs on IBM Cloud…

rodric rabbah in Apache OpenWhisk

Oct 24, 2017

The duality between serverless functions and APIs

functions are APIs and APIs are functions

Raymond Camden in Apache OpenWhisk

Jul 24, 2017

Using Postman with OpenWhisk

For a while now I’ve been a huge fan of Postman. If you’ve never heard of it, it’s an incredibly powerful…

Raymond Camden in Apache OpenWhisk

May 17, 2017

Using URL Paths in OpenWhisk Web Actions

Time for another quick OpenWhisk tip. As you know (or may know!), when you create an OpenWhisk web action, you can pass parameters via the query string or via a form post. So consider the following trivial action:

function main(args)…

rodric rabbah in Apache OpenWhisk

Mar 20, 2017

What’s new web actions?

A little over a month ago, I introduced web actions for creating serverless HTTP handlers with OpenWhisk.

Web actions allow one to run code in response to HTTP events, without deploying or managing their own servers. Web actions are built into the OpenWhisk…

rodric rabbah in Apache OpenWhisk

Feb 13, 2017

Web Actions: Serverless Web Apps with OpenWhisk

Web Actions: Part 2

rodric rabbah in Apache OpenWhisk

Feb 8, 2017

Serverless HTTP handlers with OpenWhisk

In this article, I’ll describe a new OpenWhisk feature: web actions. In short, you can now write HTTP handlers using OpenWhisk actions.

An action is “code” (e.g., a function) that runs in response to an HTTP request. As a reminder…

Raymond Camden in Apache OpenWhisk

Jan 5, 2017

Building a Serverless API Proxy with OpenWhisk

One of the more common tasks we do with a server-side application is to build a simple API proxy. By that I mean we expose an API on our server that simply proxies to another remote server. Why might you do that when you can easily call APIs…

Andrew Trice in Apache OpenWhisk

Dec 21, 2016

Exploring the new OpenWhisk API Gateway

With serverless development using OpenWhisk, you get the incredibly powerful, scalable, event driven programming model for building your actions (functions). However, new experimental functionality has been added for exposing actions as REST interfaces, which…