Added a guard that should help with the occasional crash.

enricher/enricher.js

@@ -53,33 +53,35 @@ while (true) {
  const flightData = await flightAwareResponse.json();
  let updatedFlight = false;
 
- for (const flight of flightData.flights) {
- // The response contains an array of recent past, current and
- // planned future flights with this ID. The one we want is
- // currently in progress, so progress_percent between 1 and 99.
- if (flight.progress_percent > 0 && flight.progress_percent < 100) {
- // Grab the details we want and save them.
- const flightDetails = {
- registration: flight.registration || '',
- origin_iata: flight.origin.code_iata || '',
- origin_name: flight.origin.name || '',
- destination_iata: flight.destination.code_iata || '',
- destination_name: flight.destination.name || '',
- aircraft_type: flight.aircraft_type || '',
- // Consider resolving operator_iata using another FlightAware call
- // and cache those responses forever? e.g. U2 -> EASYJET UK LIMITED 
- // Or just get this data from a list online and store it in Redis as
- // static data. https://en.wikipedia.org/wiki/List_of_airline_codes
- // FlightAware URL: https://aeroapi.flightaware.com/aeroapi/operators/U2
- operator_iata: flight.operator_iata || '',
- flight_number: flight.flight_number || ''
- };
+ if (flightData.flights) {
+ for (const flight of flightData.flights) {
+ // The response contains an array of recent past, current and
+ // planned future flights with this ID. The one we want is
+ // currently in progress, so progress_percent between 1 and 99.
+ if (flight.progress_percent > 0 && flight.progress_percent < 100) {
+ // Grab the details we want and save them.
+ const flightDetails = {
+ registration: flight.registration || '',
+ origin_iata: flight.origin.code_iata || '',
+ origin_name: flight.origin.name || '',
+ destination_iata: flight.destination.code_iata || '',
+ destination_name: flight.destination.name || '',
+ aircraft_type: flight.aircraft_type || '',
+ // Consider resolving operator_iata using another FlightAware call
+ // and cache those responses forever? e.g. U2 -> EASYJET UK LIMITED 
+ // Or just get this data from a list online and store it in Redis as
+ // static data. https://en.wikipedia.org/wiki/List_of_airline_codes
+ // FlightAware URL: https://aeroapi.flightaware.com/aeroapi/operators/U2
+ operator_iata: flight.operator_iata || '',
+ flight_number: flight.flight_number || ''
+ };
 
- const flightKey = `flight:${msgPayload.hex_ident}`;
- console.log(`Saving details to ${flightKey}...`);
- console.log(flightDetails);
- redisClient.hSet(flightKey, flightDetails);
- updatedFlight = true;
+ const flightKey = `flight:${msgPayload.hex_ident}`;
+ console.log(`Saving details to ${flightKey}...`);
+ console.log(flightDetails);
+ redisClient.hSet(flightKey, flightDetails);
+ updatedFlight = true;
+ }
  }
  }