Strava route builder API
The Strava Route Builder lets you build cycling and running routes.
It’s backed by an API at https://www.strava.com/routemaster/route
.
I wanted to use this API for my own purposes, but it’s undocumented,
so here are some hints.
The Route Builder takes as input a set of waypoints.
You draw these on the map by clicking.
For the route between two waypoints,
the app makes a call to the API.
Given two points,
like { lat: 51, lng: 0 }
,
you can get the route between them with this JS:
function routeBetweenPoints(a, b) {
return fetch('https://www.strava.com/routemaster/route', {
method: "POST",
headers: {
'Content-Type': 'application/json; charset=utf-8',
'X-CSRF-Token': document.getElementsByName('csrf-token')[0].getAttribute('content')
},
body: JSON.stringify({
elements: [
{ element_type: 1, waypoint: { point: a } },
{ element_type: 1, waypoint: { point: b } }
],
preferences: {
popularity: 1,
elevation: 0,
route_type: 1,
straight_line: false
}
})
}).then(response => response.json());
}
This will only work within the Route Builder,
because it needs access to csrf-token
in the DOM.
You can paste it into the console on the Route Builder page.
Alternatively, you can get your own CSRF token, and call the API from a script.
I leave this to you to achieve.
Tagged #programming. All content copyright James Fisher 2018. This post is not associated with my employer.