portothree / wind-forecast

GRIB2 wind forecast data served as JSON

Wind forecast

REST API to serve GRIB2 wind forecast data as JSON.

Setup

Install node dependencies

npm install

Start server

nmp start

Endpoints

• /latest latest data available

Notes

Currently, the HTTP server only serves a static JSON file, in order to update the file there're two ways:

1. Manually download the desired GRIB2 file and convert it using grib2json
2. Load vars from .env and set up the following cron jobs with a time of your choice (note that NCEP only updates GFS model every 6 hours):
   • $PROJECT_PATH/start.sh
   • $PROJECT_PATH/converter/bin/grib2json --data --output $PROJECT_PATH/tmp/wind-global.json --names --compact $PROJECT_PATH/tmp/latest.grib2

Environment variables

NODE_ENV=""
PORT=""

TMP_PATH=""

Notes

Check for the environment variable JAVA_HOME as it can differ from java versions and it can cause the grib2json converter to silently fail