External APIs

IBM OpenWhisk: Function-as-a-Service

Execute code that automatically scales to your needs without ever interacting with infrastructure
Back to BLOCKS

About IBM OpenWhisk: Function-as-a-Service

OpenWhisk is an open-source serverless compute platform. It executes your code in response to events from triggers. You only pay for the time your code actually runs (rounded up to the nearest 100ms), which means no excess capacity or idle time.

OpenWhisk scales to fit your exact demand, from once a day to thousands of parallel requests per second. Action instances scale to meet demand exactly, then disappear. It’s perfect to handle volatile workloads that can be split into smaller pieces and executed in parallel. Because OpenWhisk is open-source and is built around an open ecosystem of event providers, there is never a need to worry about vendor lock-in.

The IBM Openwhisk block allows OpenWhisk to work with today’s stream-based applications; stream data to and from OpenWhisk and leverage PubNub BLOCKS for lightweight compute in the network.

Try it Now
External APIs External APIs
Bots & AI
Bots & AI
Triggers & Notifications
Triggers & Notifications
Last Updated:
20170426 at 09:00:00
IBM and PubNub
OpenWhisk Pic for Blocks


The OpenWhisk block can be used for a number of serverless to serverless use-cases. Here are a couple examples:

Vehicle Dispatch (PubNub Blocks → OpenWhisk)

PubNub Blocks filters geo data and routes to OpenWhisk for computation. OpenWhisk runs business logic and machine learning, and broadcasts back to PubNub listeners on end-devices.

Disaster Alerts (OpenWhisk → PubNub)

Openwhisk detects weather anomalies and broadcasts to PubNub listeners on end-devices for realtime disaster alerts.

Social Chat App (PubNub → Watson + OpenWhisk)

PubNub filters chat messages through a PubNub Watson Translator block, and offloads audience analysis to OpenWhisk for async post-processing.


JSON input payload to your block
  "Openwhisk": {
      "triggerName": "hello_world",
      "payload": {
          "message": "Hello From PubNub BLOCKS!",
          "publishTime": 1492747834095

Similar BLOCKS

IBM Watson: Conversation Automate interactions with users. Bots & AI BLOCKS Details Subcategory Chat & Social BLOCKS Details Subcategory IBM Watson: Language Translator Translate and publish text in 11 languages. Chat & Social BLOCKS Details Subcategory IBM Watson: Sentiment and Context Analysis Analyze text for sentiment, emotion, language and more. Chat & Social BLOCKS Details Subcategory Charting & Graphing BLOCKS Details Subcategory Gaming BLOCKS Details Subcategory

Try PubNub Today

Connect up to 100 devices for Free