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Graphhopper routing

Before deployment

⭐ TL;DR ⭐

Steps 1 to 7 have been implemented in prototype/scripts/graphhopper/generate-cache.sh

Steps to perform

Use the OSM map file of your choice. In this guide we use indonesia-lastest.osm.pbf.

  1. Clone the graphhopper repo from github git clone [email protected]:graphhopper/graphhopper.git
  2. Download the indonesia.osm.pbf file from geofabric.de to ~/.graphhopper/openstreetmap/indonesia-latest.osm.pbf
  3. cd into the graphhopper folder
  4. update web-bundle/pom.xml: nodeVersion = v.17.2.0 and npmVersion = 8.0.4
  5. build the project mvn clean package
  6. run java -Ddw.graphhopper.datareader.file=$HOME/.graphhopper/openstreetmap/indonesia-latest.osm.pbf -Xmx16g -Xms16g -jar web/target/graphhopper-web-*.jar server config-indonesia.yml
    1. wait until the server started. this may take some time, since it's loading the map and preparing the cache
    2. if it's too slow, you may need to change the Xmx/Xms settings (set it to an ok number like 12g or 16g)
    3. the precompiled graphhopper cache will be in ~/.graphhopper/openstreetmap/indonesia-latest.osm-gh folder
  7. once the cache is generated, head over to prototype/scripts/graphhopper
  8. review the variables in build-and-upload.sh file
  9. run it: ./build-and-upload.sh

Note: make sure you're generating the graphhopper cache with the same version of graphhopper as the one you will use in the built docker image.