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using System; | |
using System.Threading.Tasks; | |
using System.Net.Http; | |
using Microsoft.Azure.WebJobs; | |
using Microsoft.Extensions.Logging; | |
using System.Collections.Generic; | |
using Models; | |
using Newtonsoft.Json; | |
namespace ForecastProcessor | |
{ | |
public static class GetForecasts | |
{ | |
#region Private Data Members | |
// It is important that we instantiate this outside the scope of the function so | |
// that it can be reused with each invocation. | |
private static readonly HttpClient Client = new HttpClient(); | |
// Weather.com API key | |
private static readonly string ApiKey = System.Environment.GetEnvironmentVariable("WeatherApiKey"); | |
#endregion | |
[FunctionName("GetForecasts")] | |
public static async Task Run( | |
[QueueTrigger("%QueueName%", Connection = "QueueConnectionString")]Coordinates[] items, | |
[EventHub("%EventHubName%", Connection = "EventHubsConnectionString")] IAsyncCollector<Forecast> results, | |
ILogger log) | |
{ | |
log.LogInformation("GetForecasts triggered"); | |
// Iterate through the collection of coordinates, retrieve | |
// the forecast and then pass it along. | |
foreach (var c in items) | |
{ | |
// Format the API request with the coordinates and API key | |
var apiRequest = | |
$"https://api.weather.com/v1/geocode/{c.Latitude}/{c.Longitude}/forecast/fifteenminute.json?language=en-US&units=e&apiKey={ApiKey}"; | |
// Make the forecast request and read the response | |
var response = await Client.GetAsync(apiRequest); | |
var forecast = await response.Content.ReadAsStringAsync(); | |
log.LogInformation(forecast); | |
// Send to an event hub | |
await results.AddAsync(new Forecast | |
{ | |
Longitude = c.Longitude, | |
Latitude = c.Latitude, | |
Result = forecast | |
}); | |
} | |
} | |
} | |
} |
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