flight_tracker

Flight tracker demo

A small, standalone Zig project that depends on serpapi the same way any downstream user project would — it is not part of the parent serpapi-zig repo's build. It uses serpapi.Client.searchAs against the Google Flights API to track a round trip from Austin (AUS) to Paris (CDG), and prints the best itineraries: price, total duration, stops, and each flight segment.

cd demo/flight_tracker
export SERPAPI_KEY=<secret_serpapi_key>
zig build run

Override the route or dates with environment variables:

DEPARTURE_ID=AUS ARRIVAL_ID=CDG \
OUTBOUND_DATE=2026-10-15 RETURN_DATE=2026-10-22 \
SERPAPI_KEY=<secret_serpapi_key> zig build run

Integrating the library

build.zig.zon and build.zig show the two pieces every user project needs:

1. A serpapi entry under .dependencies in build.zig.zon. This demo points it at the parent directory with .path = "../.." since it lives inside the serpapi-zig repo itself — an external project instead runs zig fetch --save 'git+https://github.com/serpapi/serpapi-zig#v1.0.0', which writes a url + hash pair there. See the main README's "Installation" section.
2. b.dependency("serpapi", .{...}).module("serpapi") in build.zig, wired into the executable with addImport/imports.

main.zig decodes the response into a small typed struct (FlightResults) covering just the fields the demo prints, following the pattern documented in the main README's "Search API — typed results" section.