A simple PredictionIO mock server to test SDKs
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PredictionIO Mock Server

Simple PredictionIO mock severs for testing client SDKs, written using Node.js.

PredictionIO 0.8.3 and above

Two mock servers will be running. Both only accept POST requests with data in JSON format.

Engine server

  • URL: http://localhost:8000/queries.json
  • Response: 200 status code on success and 400 otherwise.

Event server

  • URL: http://localhost:7070/events.json?accessKey=123
  • Access key: 123 (as in the above URL's query string)
  • Data is a JSON object with the following fields:
    • event: Only reversed event names: $set, $unset and $delete are accepted. Other event names must not start with $.
    • entityType
    • entityId
    • targetEntityType: Optional
    • targetEntityId: Optional
    • properties: Optional
    • eventTime: Must be in ISO 8601 format (e.g. 2004-12-13T21:39:45Z, 2004-12-13T21:39:45.618Z, 2014-09-09T16:17:42-23:00 or 2014-09-09T16:17:42.937-08:00)
  • Response: 201 status code on success and 400 otherwise.


  • Node.js (0.10.32)
  • npm (1.4.28)


Very simple installation!

$ npm install
$ node app.js

To run the mock server on Travis CI, simply add the following to .travis.yml file.

- git clone git://github.com/minhtule/PredictionIO-Mock-Server.git
- cd PredictionIO-Mock-Server
- npm install
- node app.js &
- sleep 3  # Give mock server some time to bind to sockets, etc
- cd ..