feliperyan / pvs-node

Salesforce Predictive Vision Service demo in Node.js

Salesforce Predictive Vision Image Identifier

Image Classification with the Salesforce Predictive Vision API.

🚧🚧🚧 This is a work in progress. Things are changing quickly.

Prerequisites

To use this app you will need either:

• a Salesforce Predictive Vision Service account ID and a JWT private key, or
• a JWT token (see: API docs)

Setup

Manual Setup

git clone https://github.com/heroku/pvs-node.git

cd pvs-node

heroku create $app_name
heroku addons:create cloudinary:starter
heroku config:set PREDICTIVE_SERVICES_ACCOUNT_ID=$PREDICTIVE_SERVICES_ACCOUNT_ID
heroku config:set PREDICTIVE_SERVICES_PRIVATE_KEY=$PREDICTIVE_SERVICES_PRIVATE_KEY

If you provide an RSA Private Key the app takes care of authentication for you. If you don't proivde a private key you must provide a token yourself:

heroku config:set PREDICTIVE_SERVICES_TOKEN=$PREDICTIVE_SERVICES_TOKEN

The app will default to the General Image identification model supplied by the Predictive Vision Service. If you create your own model you can use it by setting the config var:

heroku config:set PREDICTIVE_VISION_MODEL_ID=$modelId

Development

Local environment

echo 'PREDICTIVE_SERVICES_TOKEN=$jwt_token' > .env

or

export PREDICTIVE_SERVICES_PRIVATE_KEY=$jwt_private_key

Dependencies

npm install
npm install --prefix react-ui

Run the Node server

heroku local

Run the React UI

React app with hot-reloading via create-react-app is served from react-ui/; automatically proxies backend requests to the local Node server.

npm start --prefix react-ui

…and in a separate terminal, start the API server:

heroku local