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an example application of a Jeopardy question API with Loopback and Elasticsearch

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Jeopardy-API

This is an example repo for creating a simple API with Loopback, Elasticsearch, and Jeopardy!

####Setup

For this example, you need to have/install:

  • node 6 (^6.6.0)

  • npm 3 (^3.10.3)

  • loopback (^2.22)

  • loopback-component-explorer (^2.7)

  • loopback-connector-es (^1.3) -- go star this repo now!

    To install loopback-connector-es, use:

    npm install loopback-connector-es --save --save-exact

  • Install Elasticsearch

  • Install the ICU analysis plugin

    sudo bin/plugin install analysis-icu

    (If you were running Elasticsearch, restart it)

  • To start Elasticsearch: ./bin/elasticsearch

Data

The Jeopardy! dataset (>200K questions/answers) is available here.

Put the downloaded data in the /data directory and update the paths in the scripts in the /scripts directory.

Running

This example includes:

  • a Question model
  • a datasource (db) for Elasticsearch
  • an analyzer file for Elasticsearch
  • a mapping file for Elasticsearch
  • remote methods for Random and Search methods
  • scripts to create an index, add mappings, and load data

To get started:

  • start Elasticsearch ./bin/elasticsearch
  • update the $PATH in scripts/load-mapping.sh to be the full path to those files/directories
  • run bash scripts/put-mapping.sh

This should create an index in Elasticsearch for you. Then:

  • npm install (if you haven't already)
  • start the server: node server/server.js
  • open up the Explorer: http://0.0.0.0:3000/explorer
  • start playing!

If you want to add more documents to your index:

  • make sure you've downloaded the Jeopardy! dataset and saved it to the /data directory
  • install jq
  • update the $PATH in scripts/load.sh to be the full path to those files/directories
  • update the LIMIT and COUNTER in scripts/load.sh do NOT try to load all 200K questions with this script
  • run bash scripts/load.sh

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