Charlie is a Slack bot that gets weather updates. It uses the Dark Sky API (free 1,000 calls per day) for retrieving weather forecasts. It uses the Stanford CoreNLP's Temporal Tagger (SUTime) to process time queries. CoreNLP is developed in Java, so a Python port is used here. NLTK is used for non-temporal NLP. Charlie uses Google's Geocoding API to transform locations into coordinates (free 2,500 calls per day).
Install the packages
sudo pip install requests slackclient sutime dateutil geopy nltk
Download Java SE (JDK)
http://www.oracle.com/technetwork/java/javase/downloads/index.html
Download Maven
https://maven.apache.org/download.cgi
Install Maven using the instructions below
https://maven.apache.org/install.html
Install all Java dependencies from pom.xml using Maven
mvn dependency:copy-dependencies -DoutputDirectory=./jars
Make an account on DarkSky and get the API token
https://darksky.net
Create a Slack bot
1. Go to https://my.slack.com/services/new/bot
2. Write "charlie" in the username box
3. Customize your bot account and copy the API Token
Log into you Google account and get the Geocoding API key
https://developers.google.com/maps/documentation/geocoding/start
Create a config.py file with the format of example.config.py and fill in the API tokens
DARK_SKY_KEY = '<put API key here>'
SLACK_BOT_TOKEN = '<put API key here>'
GOOGLE_MAPS_KEY = '<put API key here>'
Run Charlie
python charlie.py
