Transit strives to be the Swiftiest way to interact with a GTFS static dataset feed.
The General Transit Feed Specification, or GTFS, is a dataset specification that enables a transit agency to describe a transit system to developers. More formally, GTFS is actually comprised of two data specifications: the GTFS Static Specification and the GTFS Real-Time Specification. The GTFS Static Specification describes those features of a transit system that remain reasonably static (i.e., transit routes, stops, schedules, etc.). The GTFS Real-Time Specification, on the other hand, describes the moment-to-moment state of a transit system (i.e., where specific vehicles are located, estimated arrival times, etc.). The Transit package currently supports the GTFS Static Specification (the GTFS Real-Time specification may be supported in the future). Within this document, GTFS should always be interpreted as referring to the GTFS Static Specification.
Transit is distributed as a Swift package. There are many online tutorials which describe how packages can be installed in an Xcode project.
To use Transit, simply instantiate a Feed with the contents of a folder containing GTFS datasets. You can then ask the feed for agency, route, and stop data.
// Create a feed
letfeedURL=URL(fileURLWithPath:"path-to-folder-containing-GTFS-datasets"!)letfeed=Feed(contentsOfURL: feedURL)
// Get the agency name from the feed
iflet agencyName = feed.agency?.name {print(agencyName)}
// Print info for every route in the feed
iflet routes = feed.routes {forroutein routes {print(route)}}
// Print info for every stop in the feed
iflet stops = feed.stops {forstopin stops {print(stop)}}Transit has embraced Apple’s DocC documentation compiler. DocC makes it simple to add documentation for a project. Please refer to the documentation included within the Transit package for details on Transit’s use or for help.