The goal of this project is to create a method of converting the proprietary Transloc API to gtfs realtime. This will allow for the data to be in a standardized format, to be used for ingestion by other programs such as google maps.
- Clone locally
- Run
yarn installto install dependancies - Run
yarn startto start the server The program will start, and is at http://localhost:3000/.netlify/functions/server
The program is designed to run on a function on AWS that can de deployed onto Netlify. Use yarn install && yarn run build as the build command on netlify. The master branch of this repository is being automatically deployed to https://nervous-wing-1097db.netlify.com/.netlify/functions/server currently
The program currently has two endpoints:
/vehiclepositions/<agencyId>, this can be tested at https://nervous-wing-1097db.netlify.com/.netlify/functions/server/vehiclepositions/20 (or with any other agency ID)
/tripupdates/<agencyId>, this can be tested at https://nervous-wing-1097db.netlify.com/.netlify/functions/server/tripupdates/20 (or with any other agency ID)
Currently the transloc API does not provide a means to map a vehicle to a specific trip, such as a trip_id or start time / end time. Without this data it is impossible to know for sure when a vehicle is supposed to arrive at a specific stop. It also inhibits the use of this data for ingestion into Google Maps, as Google Maps seems to require trip_id to show any realtime data.
Currently my API key for Transloc is located in src > utilities > constants.js. Feel free to use it for testing, but I would recommend not using it if you plan on running large volumes of requests.
Here is a list of helpful tools I have used along the way:
- Awesome-Transit: A list of great tools for transit data, I got most of the tools I used from there
- OneBusAway Realtime Visualizer: Used to sanity check output
- GTFS Realtime Reference: Reference for the GTFS Realtime format
- GTFS Realtime Validator: Used to validate the GTFS REaltime feed being generated
- Transloc API: API that provides vehicle data, including realtime vehicle locations