Add PHL lots & live capacity via API

[laurenancona]

(Because my dad asked nicely.)

Rough outline:

• locate or create polygons for PHL lots (LA)
• structure API request (should probably auto-refresh the available capacity at set interval) - assuming first request triggered by adding the layer via UI (or decide if we want it to be on by default at load)
• join capacity from API response with geojson boundaries by ____ field
• decide if we want to represent capacity directly as labels or map it to the info tray like the rest of the regulation data

[wesweaver]

That sounds cool. There's an API for live capacity? Where does one find that?

[laurenancona]

@wesweaver Apologies; I make assumptions about public awareness of open data resources because I deal with it daily.

Yes - we're fortunate that PHL does expose endpoints with capacity for all of the lots on site.
You probably know about OpenDataPhilly; relevant links:

• PHL parking live capacity API
• Documentation here

Most of these issues were self-directed, but if you're up for working on this one I'll update with a checklist of what I estimate the steps might look like. I'm verrrry slow with figuring out how to consume API data via JavaScript, but I can get polygons together for the lots & go from there.

[wesweaver]

Rad. Forked! The API looks straightforward. I'd love to take a stab at it.

[wesweaver]

So I slapped together something to read the API. Two questions though: 1) are we avoiding jQuery? I can rewrite with pure javascript. 2) do you have a polygon file in mind that you want this joined to?

[laurenancona]

@wesweaver awesome! I added the polys to the map last night, just need to hook them up to UI. I'm going to take a shot at getting live capacity in the info tray first; though eventually it's probably more useful to render as an overlay on the polys.

The lack of jQuery is because I was (am) learning JavaScript as I went, and decided I wanted to learn to do everything with vanilla JS first. It's being loaded because of other depends, so I'd hate to make you rewrite it for my sake.