### How this function works This HTTPS function delivers a list of airlines with important details including IATA/ICAO codes, name, and active/inactive status. It is possible to filter the results by its status. This function uses the [FlightStats API](https://developer.flightstats.com/) under the hood. ### Prerequisites * You must have previous knowledge of **FlightStats**. * You must have previous knowledge of **Firebase**. ### Function details Follow this step-by-step guide to install the getAirlines function. ##### Step 1: Create an account in FlightStats If you already use the FlightStats services, you should already be logged in and can skip this step. If you don't, you should create an account to sign in to FlightStats: * Go to [https://developer.flightstats.com/](https://developer.flightstats.com/) and create an account. * Sign in and continue with the process. ##### Step 2: Install the getAirlines function To complete the installation process, you must add the required info to the form with the following parameters from your FlightStats account: * **FLIGHT_STATS_APP_ID:** Your FlightStats application ID. * **FLIGHT_STATS_APP_KEY:** Your FlightStats application key used to authenticate requests. ##### Step 3: Use the function Once the function is installed, you can start using it in your project. Here is an example of how to call this function from your app with JavaScript: ```js const getAirlines = firebase.functions().httpsCallable('getAirlines'); // Get only active airlines const activeAirlines = await getAirlines(); // Get all airlines const allAirlines = await getAirlines({ status: 'all' }); ``` **Properties** | Property | Description | Type | Default | | -------- | ------------------------------------------------------------------------------------- | ------ | --------- | | status | A string with the status of the airlines you want to fetch. One of `'active', 'all'` | string | active | ### Resources * [FlightStats docs](https://developer.flightstats.com/getting-started/)