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Azure C# Function retrieving the geolocation by latitude and longitude
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#r "Newtonsoft.Json" | |
using System.Net; | |
using System.IO; | |
using Newtonsoft.Json; | |
public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log) | |
{ | |
log.Info("C# HTTP trigger function processed a request."); | |
string latlon = req.GetQueryNameValuePairs().FirstOrDefault(q => string.Compare(q.Key, "latlon", true) == 0).Value; | |
log.Info("Querystring: " + latlon); | |
// Set name to query string or body data | |
dynamic data = await req.Content.ReadAsAsync<object>(); | |
latlon = latlon ?? data?.latlon; | |
log.Info("Body: " + latlon); | |
var URI = "https://maps.googleapis.com/maps/api/geocode/json?latlng=" + latlon + "&key=<Insert here your Google Maps API Key>"; | |
// call Google API | |
var request = System.Net.WebRequest.Create(URI) as HttpWebRequest; | |
request.Method = "POST"; | |
request.ContentType = "application/json"; | |
request.ContentLength = 0; | |
WebResponse response = request.GetResponse(); | |
StreamReader reader = new StreamReader(response.GetResponseStream()); | |
string json = reader.ReadToEnd(); | |
log.Info(json); | |
dynamic jsonData = JsonConvert.DeserializeObject(json); | |
return latlon == null | |
? req.CreateResponse(HttpStatusCode.BadRequest, "Please pass a latitude and longitude on the query string or in the request body") | |
: req.CreateResponse(HttpStatusCode.OK, new | |
{ | |
formatted_address = $"{jsonData.results[0].formatted_address}" | |
} | |
); | |
} |
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