How to use authentication helpers

The Amazon Location JavaScript authentication utilities assistw in authenticating when making Amazon Location Service API calls from JavaScript applications. These utilities specifically support authentication using API keys or Amazon Cognito.

Installation

Usage

To use the authentication helpers, import the library and call the necessary utility functions. This library supports authenticating requests from the Amazon Location Service SDKs, including the Maps, Places, and Routes standalone SDKs, as well as rendering maps with MapLibre GL JS.

Usage with Modules

This example demonstrates the use of the standalone Places SDK to make a request authenticated with API keys:

npm install @aws-sdk/geo-places-client

import { GeoPlacesClient, GeocodeCommand } from "@aws-sdk/geo-places-client";
import { withAPIKey } from "@aws/amazon-location-utilities-auth-helper";

const authHelper = withAPIKey("<API Key>", "<Region>");
const client = new GeoPlacesClient(authHelper.getClientConfig());

const input = { ... };
const command = new GeocodeCommand(input);
const response = await client.send(command);

This example demonstrates the use of the standalone Routes SDK to make a request authenticated with API keys:

npm install @aws-sdk/geo-routes-client

import { GeoRoutesClient, CalculateRoutesCommand } from "@aws-sdk/geo-routes-client";
import { withAPIKey } from "@aws/amazon-location-utilities-auth-helper";

const authHelper = withAPIKey("<API Key>", "<Region>");
const client = new GeoRoutesClient(authHelper.getClientConfig());

const input = { ... };
const command = new CalculateRoutesCommand(input);
const response = await client.send(command);

This example uses the Location SDK with API key authentication:

npm install @aws-sdk/client-location

import { LocationClient, ListGeofencesCommand } from "@aws-sdk/client-location";
import { withAPIKey } from "@aws/amazon-location-utilities-auth-helper";

const authHelper = withAPIKey("<API Key>", "<Region>");
const client = new LocationClient(authHelper.getClientConfig());

const input = { ... };
const command = new ListGeofencesCommand(input);
const response = await client.send(command);

Usage with Browser

Utility functions are accessible under the amazonLocationAuthHelper global object when used directly in a browser environment.

This example demonstrates a request with the Amazon Location Client, authenticated using API keys:

<script src="https://cdn.jsdelivr.net/npm/@aws/amazon-location-client@1"></script>

const authHelper = amazonLocationClient.withAPIKey("<API Key>", "<Region>");
const client = new amazonLocationClient.GeoRoutesClient(authHelper.getClientConfig());
const input = { ... };
const command = new amazonLocationClient.routes.CalculateRoutesCommand(input);
const response = await client.send(command);

This example demonstrates rendering a map with MapLibre GL JS, authenticated with an API key:

<script src="https://cdn.jsdelivr.net/npm/maplibre-gl@4"></script>

const apiKey = "<API Key>";
const region = "<Region>";
const styleName = "Standard";

const map = new maplibregl.Map({
  container: "map",
  center: [-123.115898, 49.295868],
  zoom: 10,
  style: `https://maps.geo.${region}.amazonaws.com/v2/styles/${styleName}/descriptor?key=${apiKey}`,
});

This example demonstrates rendering a map with MapLibre GL JS using Amazon Cognito:

<script src="https://cdn.jsdelivr.net/npm/maplibre-gl@4"></script>
<script src="https://cdn.jsdelivr.net/npm/@aws/amazon-location-utilities-auth-helper@1"></script>

const identityPoolId = "<Identity Pool ID>";
const authHelper = await amazonLocationAuthHelper.withIdentityPoolId(identityPoolId);

const map = new maplibregl.Map({
  container: "map",
  center: [-123.115898, 49.295868],
  zoom: 10,
  style: `https://maps.geo.${region}.amazonaws.com/v2/styles/${styleName}/descriptor`,
  ...authHelper.getMapAuthenticationOptions(),
});

Alternative Usage with Authenticated Identities

You can modify the withIdentityPoolId function to include custom parameters for authenticated identities:

const userPoolId = "<User Pool ID>";

const authHelper = await amazonLocationAuthHelper.withIdentityPoolId(identityPoolId, {
  logins: {
    [`cognito-idp.${region}.amazonaws.com/${userPoolId}`]: "cognito-id-token"
  }
});

The Amazon Location Service Mobile Authentication SDK for iOS helps authenticate requests to Amazon Location Service APIs from iOS applications. It specifically supports authentication via API keys or Amazon Cognito.

Installation

Usage

After installing the library, use the AuthHelper class to configure client settings for either API keys or Amazon Cognito.

API Keys

Here is an example using the standalone Places SDK with API key authentication:

import AmazonLocationiOSAuthSDK
import AWSGeoPlaces

func geoPlacesExample() {
    let apiKey = "<API key>"
    let region = "<Region>"

    let authHelper = try await AuthHelper.withApiKey(apiKey: apiKey, region: region)
    let client: GeoPlacesClient = GeoPlacesClient(config: authHelper.getGeoPlacesClientConfig())

    let input = AWSGeoPlaces.SearchTextInput(
        biasPosition: [-97.7457518, 30.268193],
        queryText: "tacos"
    )

    let output = try await client.searchText(input: input)
}

Here is an example using the standalone Routes SDK with API key authentication:

import AmazonLocationiOSAuthSDK
import AWSGeoRoutes

func geoRoutesExample() {
    let apiKey = "<API key>"
    let region = "<Region>"

    let authHelper = try await AuthHelper.withApiKey(apiKey: apiKey, region: region)
    let client: GeoRoutesClient = GeoRoutesClient(config: authHelper.getGeoRoutesClientConfig())

    let input = AWSGeoRoutes.CalculateRoutesInput(
        destination: [-123.1651031, 49.2577281],
        origin: [-97.7457518, 30.268193]
    )

    let output = try await client.calculateRoutes(input: input)
}

Here is an example using the Location SDK with API key authentication:

import AmazonLocationiOSAuthSDK
import AWSLocation

func locationExample() {
    let apiKey = "<API key>"
    let region = "<Region>"

    let authHelper = try await AuthHelper.withApiKey(apiKey: apiKey, region: region)
    let client: LocationClient = LocationClient(config: authHelper.getLocationClientConfig())

    let input = AWSLocation.ListGeofencesInput(
        collectionName: "<Collection name>"
    )

    let output = try await client.listGeofences(input: input)
}

Here is an example using the standalone Places SDK with Amazon Cognito:

import AmazonLocationiOSAuthSDK
import AWSGeoPlaces

func geoPlacesExample() {
    let identityPoolId = "<Identity Pool ID>"

    let authHelper = try await AuthHelper.withIdentityPoolId(identityPoolId: identityPoolId)
    let client: GeoPlacesClient = GeoPlacesClient(config: authHelper.getGeoPlacesClientConfig())

    let input = AWSGeoPlaces.SearchTextInput(
        biasPosition: [-97.7457518, 30.268193],
        queryText: "tacos"
    )

    let output = try await client.searchText(input: input)
}

Here is an example using the standalone Routes SDK with Amazon Cognito:

import AmazonLocationiOSAuthSDK
import AWSGeoRoutes

func geoRoutesExample() {
    let identityPoolId = "<Identity Pool ID>"

    let authHelper = try await AuthHelper.withIdentityPoolId(identityPoolId: identityPoolId)
    let client: GeoRoutesClient = GeoRoutesClient(config: authHelper.getGeoRoutesClientConfig())

    let input = AWSGeoRoutes.CalculateRoutesInput(
        destination: [-123.1651031, 49.2577281],
        origin: [-97.7457518, 30.268193]
    )

    let output = try await client.calculateRoutes(input: input)
}

Here is an example using the Location SDK with Amazon Cognito:

import AmazonLocationiOSAuthSDK
import AWSLocation

func locationExample() {
    let identityPoolId = "<Identity Pool ID>"

    let authHelper = try await AuthHelper.withIdentityPoolId(identityPoolId: identityPoolId)
    let client: LocationClient = LocationClient(config: authHelper.getLocationClientConfig())

    let input = AWSLocation.ListGeofencesInput(
        collectionName: "<Collection name>"
    )

    let output = try await client.listGeofences(input: input)
}

The Amazon Location Service Mobile Authentication SDK for Android helps you authenticate requests to Amazon Location Service APIs from Android applications, specifically supporting authentication using Amazon Cognito.

Installation

Usage

Import the following classes in your code:

// For the standalone Maps, Places, and Routes SDKs
import aws.sdk.kotlin.services.geomaps.GeoMapsClient
import aws.sdk.kotlin.services.geoplaces.GeoPlacesClient
import aws.sdk.kotlin.services.georoutes.GeoRoutesClient

// For the consolidated Location SDK
import aws.sdk.kotlin.services.location.LocationClient

import software.amazon.location.auth.AuthHelper
import software.amazon.location.auth.LocationCredentialsProvider
import software.amazon.location.auth.AwsSignerInterceptor
import org.maplibre.android.module.http.HttpRequestUtil
import okhttp3.OkHttpClient

You can create an AuthHelper and use it with the AWS Kotlin SDK:

Example: Credential Provider with Identity Pool ID

private suspend fun exampleCognitoLogin() {
    val authHelper = AuthHelper.withCognitoIdentityPool("MY-COGNITO-IDENTITY-POOL-ID", applicationContext)
    
    var geoMapsClient = GeoMapsClient(authHelper?.getGeoMapsClientConfig())
    var geoPlacesClient = GeoPlacesClient(authHelper?.getGeoPlacesClientConfig())
    var geoRoutesClient = GeoRoutesClient(authHelper?.getGeoRoutesClientConfig())
    
    var locationClient = LocationClient(authHelper?.getLocationClientConfig())
}

Example: Credential Provider with Custom Credential Provider

private suspend fun exampleCustomCredentialLogin() {
    var authHelper = AuthHelper.withCredentialsProvider(MY-CUSTOM-CREDENTIAL-PROVIDER, "MY-AWS-REGION", applicationContext)

    var geoMapsClient = GeoMapsClient(authHelper?.getGeoMapsClientConfig())
    var geoPlacesClient = GeoPlacesClient(authHelper?.getGeoPlacesClientConfig())
    var geoRoutesClient = GeoRoutesClient(authHelper?.getGeoRoutesClientConfig())
    
    var locationClient = LocationClient(authHelper?.getLocationClientConfig())
}

Example: Credential Provider with API Key

private suspend fun exampleApiKeyLogin() {
    var authHelper = AuthHelper.withApiKey("MY-API-KEY", "MY-AWS-REGION", applicationContext)

    var geoMapsClient = GeoMapsClient(authHelper?.getGeoMapsClientConfig())
    var geoPlacesClient = GeoPlacesClient(authHelper?.getGeoPlacesClientConfig())
    var geoRoutesClient = GeoRoutesClient(authHelper?.getGeoRoutesClientConfig())
    
    var locationClient = LocationClient(authHelper?.getLocationClientConfig())
}

You can use LocationCredentialsProvider to load the MapLibre map. Here is an example:

HttpRequestUtil.setOkHttpClient(
    OkHttpClient.Builder()
        .addInterceptor(
            AwsSignerInterceptor(
                "geo",
                "MY-AWS-REGION",
                locationCredentialsProvider,
                applicationContext
            )
        )
        .build()
)

Use the created clients to make calls to Amazon Location Service. Here is an example that searches for places near a specified latitude and longitude:

val suggestRequest = SuggestRequest {
       biasPosition = listOf(-97.718833, 30.405423)
       maxResults = MAX_RESULT
       language = "PREFERRED-LANGUAGE"
   }
val nearbyPlaces = geoPlacesClient.suggest(suggestRequest)