Elevation service

Self-hosted elevation service that works with the terrain data provided by Mapzen and Amazon AWS S3.

TL;DR

cp keys_example.js keys.js
HASH=$(echo -n MY_API_KEY | sha256sum | awk '{print $1}')
sed -i "s/API_KEY_1/$HASH/g" keys.js

yarn install
yarn test
yarn start

API usage

Keys

This service requires an API key to answer requests. To set up keys, copy keys_example.js as keys.js, and add the hash of your keys to the authorized keys array. To generate the hash of your personal key, run

echo -n MY_API_KEY | sha256sum

Array of coordinates

# > [[lat_1, lon_1], [lat_2, lon_2], ...]
curl -d '[[51.3, 13.4], [51.4, 13.3]]' -XPOST -H 'Content-Type: application/json' -L "localhost:4000?key=MY_API_KEY"
# < [alt_1, alt_2, ...]

Single coordinate

curl 'localhost:4000?key=MY_API_KEY&lat=51.3&lon=13.4'
# < alt

Run the docker container:

docer build -t elevation-service .
docker run --rm -v/path/to/data/folder:/app/data -4000:4000 elevation-service

Download data

aws s3 cp --no-sign-request --recursive s3://elevation-tiles-prod/skadi /path/to/data/folder

Acknowledgements

This service was forked from racemap/elevation-service.