این صفحه نمونههایی از نحوه استفاده از کتابخانههای کارخواه Places Aggregate API دارد.
نصب کتابخانههای کارخواه
برای دستورالعملهای نصب، کتابخانههای مشتری Places Aggregate API را ببینید.
اصالتسنجی
وقتی از کتابخانههای مشتری استفاده میکنید، از اطلاعات اعتباری پیشفرض برنامه (ADC) برای درستیسنجی استفاده میکنید. برای کسب اطلاعات درباره راهاندازی ADC، به ارائه اطلاعات اعتباری برای «اطلاعات اعتباری پیشفرض برنامه» مراجعه کنید. برای کسب اطلاعات درباره استفاده از ADC با کتابخانههای مشتری، به اصالتسنجی بااستفاده از کتابخانههای مشتری مراجعه کنید.
همچنین میتوانید از کلیدهای میانای برنامهسازی کاربردی برای اصالتسنجی در کتابخانههای کارخواه استفاده کنید، برای مثال:
جاوا
import java.util.HashMap; import java.util.Map; import com.google.api.gax.core.NoCredentialsProvider; import com.google.api.gax.rpc.FixedHeaderProvider; import com.google.api.gax.rpc.HeaderProvider; import com.google.maps.areainsights.v1.AreaInsightsClient; import com.google.maps.areainsights.v1.AreaInsightsSettings; // ... String apiKey = "API_KEY"; // Create a HeaderProvider to inject the API key into every request. Map<String, String> headers = new HashMap<>(); headers.put("x-goog-api-key", apiKey); HeaderProvider headerProvider = FixedHeaderProvider.create(headers); // Configure the client settings. AreaInsightsSettings areaInsightsSettings = AreaInsightsSettings.newBuilder() // Use the header provider to add the API key. .setHeaderProvider(headerProvider) // Tell the client not to use Application Default Credentials. .setCredentialsProvider(NoCredentialsProvider.create()) .build(); // Create the client using these custom settings. try (AreaInsightsClient areaInsightsClient = AreaInsightsClient.create(areaInsightsSettings)) { // ... }
رفتن
areainsightspb "cloud.google.com/go/maps/areainsights/apiv1/areainsightspb" "google.golang.org/api/option" // Import the option package when using an API key "google.golang.org/genproto/googleapis/type/latlng" ... // Initialize the client, passing the API key clientOpts := []option.ClientOption{option.WithAPIKey("API_KEY")} c, err := areainsights.NewClient(ctx, clientOpts...)
NodeJS
// Instantiates the Places client, passing the API key const areaInsightsClient = new AreaInsightsClient({ apiKey: "API_KEY", });
Python
client = areainsights_v1.AreaInsightsAsyncClient( # Instantiates the insights client, passing the API key client_options={"api_key": "API_KEY"} )
دات نت
using Google.Maps.AreaInsights.V1; using Google.Api.Gax.Grpc; using Grpc.Core; // ... var apiHeader = CallSettings.FromHeader("X-Goog-Api-Key", "API_KEY"); var defaultSettings = AreaInsightsSettings.GetDefault(); var settings = new AreaInsightsSettings { // Merge the API key header into the settings for the ComputeInsights method. ComputeInsightsSettings = defaultSettings.ComputeInsightsSettings.MergedWith(apiHeader) }; // Create a client builder with the custom settings. AreaInsightsClientBuilder builder = new AreaInsightsClientBuilder { Settings = settings, // Use SslCredentials to create a secure channel for API key authentication. ChannelCredentials = new SslCredentials() }; // Build the client from the builder. AreaInsightsClient areaInsightsClient = await builder.BuildAsync();
وقتی از کلیدهای API در برنامههایتان استفاده میکنید، مطمئن شوید که درطول ذخیرهسازی و انتقال ایمن نگه داشته میشوند. افشای عمومی کلیدهای API شما میتواند منجر به کسر هزینههای غیرمنتظره از حساب شما شود.
مثالهای این صفحه از «اطلاعات اعتباری پیشفرض برنامه» استفاده میکنند.
مثالها
محاسبه اطلاعات آماری
در زیر مثالی از نحوه فراخوانی اطلاعات آماری محاسبه بااستفاده از کتابخانه مشتری آورده شده است.
جاوا
import com.google.api.core.ApiFuture; import com.google.maps.areainsights.v1.AreaInsightsClient; import com.google.maps.areainsights.v1.ComputeInsightsRequest; import com.google.maps.areainsights.v1.ComputeInsightsResponse; import com.google.maps.areainsights.v1.Filter; import com.google.maps.areainsights.v1.Insight; import com.google.maps.areainsights.v1.LocationFilter; import com.google.maps.areainsights.v1.OperatingStatus; import com.google.maps.areainsights.v1.RatingFilter; import com.google.maps.areainsights.v1.TypeFilter; import com.google.type.LatLng; // ... public static void callComputeInsights() throws Exception { // Use try-with-resources to automatically close the client. try (AreaInsightsClient areaInsightsClient = AreaInsightsClient.create()) { // Build the request. ComputeInsightsRequest request = ComputeInsightsRequest.newBuilder() .addInsights(Insight.INSIGHT_COUNT) .setFilter( Filter.newBuilder() .setLocationFilter( LocationFilter.newBuilder() .setCircle( LocationFilter.Circle.newBuilder() .setLatLng( LatLng.newBuilder() .setLatitude(37.7749) .setLongitude(-122.4194) .build()) .setRadius(2000) .build())) .setTypeFilter(TypeFilter.newBuilder().addIncludedTypes("restaurant").build()) .addOperatingStatus(OperatingStatus.OPERATING_STATUS_OPERATIONAL) .setRatingFilter(RatingFilter.newBuilder().setMinRating(4.2f).build()) .build()) .build(); // Make the API call. ApiFuturefutureResponse = areaInsightsClient.computeInsightsCallable().futureCall(request); ComputeInsightsResponse response = futureResponse.get(); System.out.println(response); } }
رفتن
package main import ( "context" "fmt" "log" areainsights "cloud.google.com/go/maps/areainsights/apiv1" areainsightspb "cloud.google.com/go/maps/areainsights/apiv1/areainsightspb" "google.golang.org/genproto/googleapis/type/latlng" ) func main() { ctx := context.Background() // Initialize the client c, err := areainsights.NewClient(ctx) if err != nil { log.Fatalf("NewClient: %v", err) } defer c.Close() minRating := float32(4.2) // Create the ComputeInsightsRequest req := &areainsightspb.ComputeInsightsRequest{ Insights: []areainsightspb.Insight{ areainsightspb.Insight_INSIGHT_COUNT, }, Filter: &areainsightspb.Filter{ LocationFilter: &areainsightspb.LocationFilter{ Area: &areainsightspb.LocationFilterCircle{ Circle: &areainsightspb.LocationFilter_Circle{ Center: &areainsightspb.LocationFilter_Circle_LatLng{ LatLng: &latlng.LatLng{ Latitude: 37.7749, Longitude: -122.4194, }, }, Radius: 2000, }, }, }, TypeFilter: &areainsightspb.TypeFilter{ // Filter for restaurants IncludedTypes: []string{"restaurant"}, }, OperatingStatus: []areainsightspb.OperatingStatus{ areainsightspb.OperatingStatus_OPERATING_STATUS_OPERATIONAL, }, RatingFilter: &areainsightspb.RatingFilter{ MinRating: &minRating, }, }, } // Call ComputeInsights resp, err := c.ComputeInsights(ctx, req) if err != nil { log.Fatalf("ComputeInsights failed: %v", err) } // Process the response // Since we requested a count, use the GetCount() method to retrieve the result. count := resp.GetCount() fmt.Printf("Found a total of %d operational restaurants with a rating of %.1f or higher in the specified area.\n", count, minRating) }
NodeJS
// Imports the library const {AreaInsightsClient, protos} = require('@googlemaps/areainsights'); // Instantiates a client const areaInsightsClient = new AreaInsightsClient(); async function computeInsights() { // Build the request const request = { insights: [protos.google.maps.areainsights.v1.Insight.INSIGHT_COUNT], filter: { locationFilter: { circle: { latLng: { latitude: 37.7749, longitude: -122.4194, }, radius: 2000, }, }, typeFilter: { includedTypes: ['restaurant'], }, operatingStatus: [ protos.google.maps.areainsights.v1.OperatingStatus .OPERATING_STATUS_OPERATIONAL, ], ratingFilter: { minRating: 4.2, }, }, }; // Make the request const [response] = await areaInsightsClient.computeInsights(request); console.log(response); } computeInsights();
Python
import asyncio from google.maps import areainsights_v1 from google.type import latlng_pb2 async def places_aggregate(): client = areainsights_v1.AreaInsightsAsyncClient() # Build the request request = areainsights_v1.ComputeInsightsRequest( insights=[areainsights_v1.Insight.INSIGHT_COUNT], filter=areainsights_v1.Filter( location_filter=areainsights_v1.LocationFilter( circle=areainsights_v1.LocationFilter.Circle( lat_lng=latlng_pb2.LatLng(latitude=37.7749, longitude=-122.4194), radius=2000 ) ), type_filter=areainsights_v1.TypeFilter( included_types=["restaurant"] ), operating_status=[areainsights_v1.OperatingStatus.OPERATING_STATUS_OPERATIONAL], rating_filter=areainsights_v1.RatingFilter( min_rating=4.2 ) ) ) # Make the request response = await client.compute_insights(request=request) return response print(asyncio.run(places_aggregate()))
دات نت
using Google.Maps.AreaInsights.V1; // ... public static async TaskGetPlacesAggregateCountAsync() { // Create the client. AreaInsightsClient areaInsightsClient = await AreaInsightsClient.CreateAsync(); // Build the request var request = new ComputeInsightsRequest { Insights = { Insight.Count }, Filter = new Filter { LocationFilter = new LocationFilter { // Define the search area as a circle with a 2km radius. Circle = new LocationFilter.Types.Circle { LatLng = new Google.Type.LatLng { Latitude = 37.7749, Longitude = -122.4194 }, Radius = 2000 } }, TypeFilter = new TypeFilter { // Filter for places of type "restaurant". IncludedTypes = { "restaurant" } }, // Filter for places that are operational. OperatingStatus = { OperatingStatus.Operational }, RatingFilter = new RatingFilter { // Filter for places with a minimum user rating of 4.2. MinRating = 4.2f } } }; // Make the request ComputeInsightsResponse response = await areaInsightsClient.ComputeInsightsAsync(request); // Return the count from the response. return response.Count; }
این درخواست تعداد مکانهای واقع در شعاع ۲ کیلومتری مرکز شهر سانفرانسیسکو را که رستورانهای فعال با ردهبندی کاربر ۴٫۲ یا بالاتر هستند برمیگرداند.