purukn / dc-alchemy-sample

Example to extract custom entities from PDF documents. Uses Watson Document Conversion and Watson Alchemy Language (using custom model) APIs.

dc-alchemy-sample Overview

This Node.js Application demonstrates how Custom entities can be identified in a PDF document. PDF documents when uploaded gets converted into sections using Watson Document Conversion service. Alchemy Language's getEntities API is then used using a Custom trained model to get entities present in the sections of the PDF document.

Note: Please add new bindings for Document Conversion and Alchemy Language Services for the newly created application. Alternatively, you can mention access information of already existing Services as below in Environment Variables:

API_KEY=alchemy_language_api_key

MODEL_ID=alchemy_language_custom_model_id

DC_USER_NAME=document_conversion_user_name

DC_PASSWORD=document_conversion_password

Run the app locally

1. Install Node.js
2. Download and extract the starter code from the Bluemix UI
3. cd into the app directory
4. Add a .env file in app directory providing values for above mentioned environment variables
5. Run npm install to install the app's dependencies
6. Run npm start to start the app
7. Access the running app in a browser at http://localhost:6001

API information

URL: /entities (POST) Input: PDF document uploaded as form-data parameter named "file"