bring over code challenge

models/airport.ts

@@ -0,0 +1,10 @@
+import airports from '../data/airports.json'
+import Airport from '../types/airport'
+
+export const findAirportByIata = async (iata: string): Promise<Airport | undefined> => {
+  return airports.find(airport => airport.iata === iata.toUpperCase())
+}
+
+export const allAirports = async (): Promise<Airport[]> => {
+  return airports
+}