ComputeRouteMatrix तरीके का इस्तेमाल, एचटीटीपी अनुरोध और रिस्पॉन्स के साथ किया जा सकता है. इसके अलावा, Java और Go के साथ-साथ gRPC के साथ काम करने वाली किसी भी भाषा के साथ भी इसका इस्तेमाल किया जा सकता है.
एचटीटीपी के उदाहरण
नीचे दिए गए उदाहरण में, ComputeRouteMatrix एचटीटीपी अनुरोध और रिस्पॉन्स दिखाया गया है.
अनुरोध:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude": 37.420761,
"longitude": -122.081356,
}}},
"routeModifiers": { "avoidFerries": true}
},
{
"waypoint": { "location": { "latLng": {
"latitude": 37.403184,
"longitude": -122.097371,
}}},
"routeModifiers": { "avoidFerries": true}
}
],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude": 37.420999,
"longitude": -122.086894,
}}}
},
{
"waypoint": { "location": { "latLng": {
"latitude": 37.383047,
"longitude": -122.044651,
}}}
}
],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' -H 'Content-Type: application/json' -H 'X-Goog-Api-Key: <YOUR_API_KEY>' -H 'X-Goog-FieldMask: originIndex,destinationIndex,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
जवाब:
[{
"status": {},
"distanceMeters": 827,
"duration": "139s"
}
,
{
"originIndex": 1,
"destinationIndex": 1,
"status": {},
"distanceMeters": 5597,
"duration": "383s"
}
,
{
"originIndex": 1,
"status": {},
"distanceMeters": 2926,
"duration": "316s"
}
,
{
"destinationIndex": 1,
"status": {},
"distanceMeters": 8602,
"duration": "613s"
}
]
नीचे दिए गए उदाहरण में, टोल की अनुमानित कीमत का हिसाब लगाने के लिए, ComputeRouteMatrix एचटीटीपी अनुरोध और रिस्पॉन्स दिखाया गया है.
अनुरोध:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.7020056,
"longitude":-122.3479236,
}}},
"routeModifiers": {
"vehicleInfo":{
"emissionType": "GASOLINE"
},
"tollPasses": [
"US_MA_EZPASSMA",
"US_WA_GOOD_TO_GO"
]
}
}],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.6192234,
"longitude": -122.1676792
}}}
}],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' -H 'Content-Type: application/json' -H 'X-Goog-Api-Key: <YOUR_API_KEY>' -H 'X-Goog-FieldMask: originIndex,destinationIndex,travelAdvisory,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
जवाब:
[{
"status": {},
"distanceMeters": 22498,
"duration": "1251s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "2",
"nanos": 700000000
}
]
}
}
}
]
Java और Go के उदाहरण
नीचे दिए गए उदाहरणों में, Java या Go के साथ ComputeRouteMatrix तरीके को कॉल करने का तरीका बताया गया है. बिल्ड करने के निर्देशों के लिए, Java और Go के Github रिपॉज़िटरी देखें.
Java
package com.example;
import com.google.maps.routes.v1.*;
import com.google.type.LatLng;
import io.grpc.CallOptions;
import io.grpc.Channel;
import io.grpc.ClientCall;
import io.grpc.ClientInterceptor;
import io.grpc.ClientInterceptors;
import io.grpc.ForwardingClientCall;
import io.grpc.Metadata;
import io.grpc.MethodDescriptor;
import io.grpc.StatusRuntimeException;
import io.grpc.netty.NettyChannelBuilder;
import java.util.Iterator;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
public class RoutesPreferredClient {
// For more detail on inserting API keys, see:
// https://cloud.google.com/endpoints/docs/grpc/restricting-api-access-with-api-keys#java
// For more detail on system parameters (such as FieldMask), see:
// https://cloud.google.com/apis/docs/system-parameters
private static final class RoutesPreferredInterceptor implements ClientInterceptor {
private final String apiKey;
private static final Logger logger = Logger.getLogger(RoutesPreferredInterceptor.class.getName());
private static Metadata.Key<String> API_KEY_HEADER = Metadata.Key.of("x-goog-api-key",
Metadata.ASCII_STRING_MARSHALLER);
private static Metadata.Key<String> FIELD_MASK_HEADER = Metadata.Key.of("x-goog-fieldmask",
Metadata.ASCII_STRING_MARSHALLER);
public RoutesPreferredInterceptor(String apiKey) {
this.apiKey = apiKey;
}
@Override
public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(MethodDescriptor<ReqT, RespT> method,
CallOptions callOptions, Channel next) {
logger.info("Intercepted " + method.getFullMethodName());
ClientCall<ReqT, RespT> call = next.newCall(method, callOptions);
call = new ForwardingClientCall.SimpleForwardingClientCall<ReqT, RespT>(call) {
@Override
public void start(Listener<RespT> responseListener, Metadata headers) {
headers.put(API_KEY_HEADER, apiKey);
// Note that setting the field mask to * is OK for testing, but discouraged in
// production.
// For example, for ComputeRoutes, set the field mask to
// "routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline"
// in order to get the route distances, durations, and encoded polylines.
headers.put(FIELD_MASK_HEADER, "*");
super.start(responseListener, headers);
}
};
return call;
}
}
private static final Logger logger = Logger.getLogger(RoutesPreferredClient.class.getName());
private final RoutesPreferredGrpc.RoutesPreferredBlockingStub blockingStub;
public RoutesPreferredClient(Channel channel) {
blockingStub = RoutesPreferredGrpc.newBlockingStub(channel);
}
public static Waypoint createWaypointForLatLng(double lat, double lng) {
return Waypoint.newBuilder()
.setLocation(Location.newBuilder().setLatLng(LatLng.newBuilder().setLatitude(lat).setLongitude(lng)))
.build();
}
public void computeRoutes() {
ComputeRoutesRequest request = ComputeRoutesRequest.newBuilder()
.setOrigin(createWaypointForLatLng(37.420761, -122.081356))
.setDestination(createWaypointForLatLng(37.420999, -122.086894)).setTravelMode(RouteTravelMode.DRIVE)
.setRoutingPreference(RoutingPreference.TRAFFIC_AWARE).setComputeAlternativeRoutes(true)
.setUnits(Units.METRIC).setLanguageCode("en-us")
.setRouteModifiers(
RouteModifiers.newBuilder().setAvoidTolls(false).setAvoidHighways(true).setAvoidFerries(true))
.setPolylineQuality(PolylineQuality.OVERVIEW).build();
ComputeRoutesResponse response;
try {
logger.info("About to send request: " + request.toString());
response = blockingStub.withDeadlineAfter(2000, TimeUnit.MILLISECONDS).computeRoutes(request);
} catch (StatusRuntimeException e) {
logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
return;
}
logger.info("Response: " + response.toString());
}
public void computeRouteMatrix() {
ComputeRouteMatrixRequest request = ComputeRouteMatrixRequest.newBuilder()
.addOrigins(RouteMatrixOrigin.newBuilder().setWaypoint(createWaypointForLatLng(37.420761, -122.081356))
.setRouteModifiers(RouteModifiers.newBuilder().setAvoidTolls(false).setAvoidHighways(true)
.setAvoidFerries(true)))
.addOrigins(RouteMatrixOrigin.newBuilder().setWaypoint(createWaypointForLatLng(37.403184, -122.097371)))
.addDestinations(RouteMatrixDestination.newBuilder()
.setWaypoint(createWaypointForLatLng(37.420999, -122.086894)))
.addDestinations(RouteMatrixDestination.newBuilder()
.setWaypoint(createWaypointForLatLng(37.383047, -122.044651)))
.setTravelMode(RouteTravelMode.DRIVE).setRoutingPreference(RoutingPreference.TRAFFIC_AWARE).build();
Iterator<RouteMatrixElement> elements;
try {
logger.info("About to send request: " + request.toString());
elements = blockingStub.withDeadlineAfter(2000, TimeUnit.MILLISECONDS).computeRouteMatrix(request);
} catch (StatusRuntimeException e) {
logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
return;
}
while (elements.hasNext()) {
logger.info("Element response: " + elements.next().toString());
}
}
public static void main(String[] args) throws Exception {
String apiKey = System.getenv("GOOGLE_MAPS_API_KEY");
// The standard TLS port is 443
Channel channel = NettyChannelBuilder.forAddress("routespreferred.googleapis.com", 443).build();
channel = ClientInterceptors.intercept(channel, new RoutesPreferredInterceptor(apiKey));
RoutesPreferredClient client = new RoutesPreferredClient(channel);
client.computeRoutes();
client.computeRouteMatrix();
}
}
शुरू करें
package main
import (
"context"
"crypto/tls"
"io"
"log"
"os"
"time"
"github.com/golang/protobuf/proto"
v1 "google.golang.org/genproto/googleapis/maps/routes/v1"
"google.golang.org/genproto/googleapis/type/latlng"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
)
const (
serverAddr = "routespreferred.googleapis.com:443"
// Note that setting the field mask to * is OK for testing, but discouraged in
// production.
// For example, for ComputeRoutes, set the field mask to
// "routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline"
// in order to get the route distances, durations, and encoded polylines.
fieldMask = "*"
)
func createWaypoint(lat float64, lng float64) *v1.Waypoint {
return &v1.Waypoint{LocationType: &v1.Waypoint_Location{
Location: &v1.Location{
LatLng: &latlng.LatLng{Latitude: lat, Longitude: lng},
},
}}
}
func callComputeRoutes(client v1.RoutesPreferredClient, ctx *context.Context) {
request := v1.ComputeRoutesRequest{
Origin: createWaypoint(37.420761, -122.081356),
Destination: createWaypoint(37.420999, -122.086894),
TravelMode: v1.RouteTravelMode_DRIVE,
RoutingPreference: v1.RoutingPreference_TRAFFIC_AWARE,
ComputeAlternativeRoutes: true,
Units: v1.Units_METRIC,
LanguageCode: "en-us",
RouteModifiers: &v1.RouteModifiers{
AvoidTolls: false,
AvoidHighways: true,
AvoidFerries: true,
},
PolylineQuality: v1.PolylineQuality_OVERVIEW,
}
marshaler := proto.TextMarshaler{}
log.Printf("Sending request: \n%s", marshaler.Text(&request))
result, err := client.ComputeRoutes(*ctx, &request)
if err != nil {
log.Fatalf("Failed to call ComputeRoutes: %v", err)
}
log.Printf("Result: %s", marshaler.Text(result))
}
func callComputeRouteMatrix(client v1.RoutesPreferredClient, ctx *context.Context) {
request := v1.ComputeRouteMatrixRequest{
Origins: []*v1.RouteMatrixOrigin{
{Waypoint: createWaypoint(37.420761, -122.081356), RouteModifiers: &v1.RouteModifiers{
AvoidTolls: false,
AvoidHighways: true,
AvoidFerries: true,
}},
{Waypoint: createWaypoint(37.403184, -122.097371)},
},
Destinations: []*v1.RouteMatrixDestination{
{Waypoint: createWaypoint(37.420999, -122.086894)},
{Waypoint: createWaypoint(37.383047, -122.044651)},
},
TravelMode: v1.RouteTravelMode_DRIVE,
RoutingPreference: v1.RoutingPreference_TRAFFIC_AWARE,
}
marshaler := proto.TextMarshaler{}
log.Printf("Sending request: \n%s", marshaler.Text(&request))
stream, err := client.ComputeRouteMatrix(*ctx, &request)
if err != nil {
log.Fatalf("Failed to call ComputeRouteMatrix: %v", err)
}
for {
element, err := stream.Recv()
if err == io.EOF {
break
}
if err != nil {
log.Fatalf("Received error in ComputeRouteMatrix stream: %v", err)
}
log.Printf("Element: %s\n", marshaler.Text(element))
}
}
func main() {
config := tls.Config{}
conn, err := grpc.Dial(serverAddr,
grpc.WithTransportCredentials(credentials.NewTLS(&config)))
if err != nil {
log.Fatalf("Failed to connect: %v", err)
}
defer conn.Close()
client := v1.NewRoutesPreferredClient(conn)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-Api-Key", os.Getenv("GOOGLE_MAPS_API_KEY"))
ctx = metadata.AppendToOutgoingContext(ctx, "X-Goog-Fieldmask", fieldMask)
defer cancel()
callComputeRoutes(client, &ctx)
callComputeRouteMatrix(client, &ctx)
}
टोल शुल्क का हिसाब लगाने का उदाहरण
यहां दिए गए उदाहरण में, computeRouteMatrix तरीके का इस्तेमाल करके, किसी रास्ते पर टोल की जानकारी दी गई है. इसमें, टोल पास का इस्तेमाल करने पर, अनुमानित कीमत भी दी गई है.
यह सुविधा, अनुरोध में बताए गए routes.travelAdvisory.tollInfo फ़ील्ड मास्क के साथ चालू होती है. टोल पास की जानकारी route_modifiers
फ़ील्ड में दी गई है. टोल की दिखाई गई कीमत, बताए गए पास के लिए तय की गई कीमत के आधार पर तय की जाती है. अगर एक से ज़्यादा पास तय किए गए हैं, तो सबसे कम कीमत वाली कीमत दिखाई जाती है.
अनुरोध:
curl -X POST -d '{
"origins": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.7020056,
"longitude":-122.3479236,
}}},
"routeModifiers": {
"vehicleInfo":{
"emissionType": "GASOLINE"
},
"tollPasses": [
"US_MA_EZPASSMA",
"US_WA_GOOD_TO_GO"
]
}
}],
"destinations": [
{
"waypoint": { "location": { "latLng": {
"latitude":47.6192234,
"longitude": -122.1676792
}}}
}],
"travelMode": "DRIVE",
"routingPreference": "TRAFFIC_AWARE"
}' \
-H 'Content-Type: application/json' \
-H 'X-Goog-Api-Key: <YOUR_API_KEY>' \
-H 'X-Goog-FieldMask: originIndex,destinationIndex,travelAdvisory,duration,distanceMeters,status' 'https://routespreferred.googleapis.com/v1alpha:computeRouteMatrix'
जवाब:
[{
"status": {},
"distanceMeters": 22495,
"duration": "1446s",
"travelAdvisory": {
"tollInfo": {
"estimatedPrice": [
{
"currencyCode": "USD",
"units": "4",
"nanos": 300000000
}
]
}
}
}]