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azure-maps-search

README.md

Azure Maps Search Package client library for Python

This package contains a Python SDK for Azure Maps Services for Search. Read more about Azure Maps Services here

Source code | API reference documentation | Product documentation

Disclaimer

Azure SDK Python packages support for Python 2.7 has ended 01 January 2022. For more information and questions, please refer to #20691

Getting started

Prerequisites

If you use Azure CLI, replace <resource-group-name> and <account-name> of your choice, and select a proper pricing tier based on your needs via the <sku-name> parameter. Please refer to this page for more details.

az maps account create --resource-group <resource-group-name> --account-name <account-name> --sku <sku-name>

Install the package

Install the Azure Maps Service Search SDK.

pip install azure-maps-search

Create and Authenticate the MapsSearchClient

To create a client object to access the Azure Maps Search API, you will need a credential object. Azure Maps Search client also support three ways to authenticate.

1. Authenticate with a Subscription Key Credential

You can authenticate with your Azure Maps Subscription Key. Once the Azure Maps Subscription Key is created, set the value of the key as environment variable: AZURE_SUBSCRIPTION_KEY. Then pass an AZURE_SUBSCRIPTION_KEY as the credential parameter into an instance of AzureKeyCredential.

from azure.core.credentials import AzureKeyCredential
from azure.maps.search import MapsSearchClient

credential = AzureKeyCredential(os.environ.get("AZURE_SUBSCRIPTION_KEY"))

search_client = MapsSearchClient(
    credential=credential,
)

2. Authenticate with a SAS Credential

Shared access signature (SAS) tokens are authentication tokens created using the JSON Web token (JWT) format and are cryptographically signed to prove authentication for an application to the Azure Maps REST API.

To authenticate with a SAS token in Python, you'll need to generate one using the azure-mgmt-maps package.

We need to tell user to install azure-mgmt-maps: pip install azure-mgmt-maps

Here's how you can generate the SAS token using the list_sas method from azure-mgmt-maps:

from azure.identity import DefaultAzureCredential
from azure.mgmt.maps import AzureMapsManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-maps
# USAGE
    python account_list_sas.py
    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = AzureMapsManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="your-subscription-id",
    )

    response = client.accounts.list_sas(
        resource_group_name="myResourceGroup",
        account_name="myMapsAccount",
        maps_account_sas_parameters={
            "expiry": "2017-05-24T11:42:03.1567373Z",
            "maxRatePerSecond": 500,
            "principalId": "your-principal-id",
            "regions": ["eastus"],
            "signingKey": "primaryKey",
            "start": "2017-05-24T10:42:03.1567373Z",
        },
    )
    print(response)

Once the SAS token is created, set the value of the token as environment variable: AZURE_SAS_TOKEN. Then pass an AZURE_SAS_TOKEN as the credential parameter into an instance of AzureSasCredential.

import os

from azure.core.credentials import AzureSASCredential
from azure.maps.search import MapsSearchClient

credential = AzureSASCredential(os.environ.get("AZURE_SAS_TOKEN"))

search_client = MapsSearchClient(
    credential=credential,
)

3. Authenticate with an Microsoft Entra ID credential

You can authenticate with Microsoft Entra ID token credential using the Azure Identity library. Authentication by using Microsoft Entra ID requires some initial setup:

After setup, you can choose which type of credential from azure.identity to use. As an example, DefaultAzureCredential can be used to authenticate the client:

Next, set the values of the client ID, tenant ID, and client secret of the Microsoft Entra ID application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID, AZURE_CLIENT_SECRET

You will also need to specify the Azure Maps resource you intend to use by specifying the clientId in the client options. The Azure Maps resource client id can be found in the Authentication sections in the Azure Maps resource. Please refer to the documentation on how to find it.

from azure.maps.search import MapsSearchClient
from azure.identity import DefaultAzureCredential

credential = DefaultAzureCredential()
search_client = MapsSearchClient(credential=credential)

Key concepts

The Azure Maps Search client library for Python allows you to interact with each of the components through the use of a dedicated client object.

Sync Clients

MapsSearchClient is the primary client for developers using the Azure Maps Search client library for Python. Once you initialized a MapsSearchClient class, you can explore the methods on this client object to understand the different features of the Azure Maps Search service that you can access.

Async Clients

This library includes a complete async API supported on Python 3.5+. To use it, you must first install an async transport, such as aiohttp. See azure-core documentation for more information.

Async clients and credentials should be closed when they're no longer needed. These objects are async context managers and define async close methods.

Examples

The following sections provide several code snippets covering some of the most common Azure Maps Search tasks, including:

Geocode an address

You can use an authenticated client to convert an address into latitude and longitude coordinates. This process is also called geocoding. In addition to returning the coordinates, the response will also return detailed address properties such as street, postal code, municipality, and country/region information.

import os

from azure.core.exceptions import HttpResponseError

subscription_key = os.getenv("AZURE_SUBSCRIPTION_KEY", "your subscription key")

def geocode():
    from azure.core.credentials import AzureKeyCredential
    from azure.maps.search import MapsSearchClient

    maps_search_client = MapsSearchClient(credential=AzureKeyCredential(subscription_key))
    try:
        result = maps_search_client.get_geocoding(query="15127 NE 24th Street, Redmond, WA 98052")
        if result.get('features', False):
            coordinates = result['features'][0]['geometry']['coordinates']
            longitude = coordinates[0]
            latitude = coordinates[1]

            print(longitude, latitude)
        else:
            print("No results")

    except HttpResponseError as exception:
        if exception.error is not None:
            print(f"Error Code: {exception.error.code}")
            print(f"Message: {exception.error.message}")

if __name__ == '__main__':
    geocode()

Batch geocode addresses

This sample demonstrates how to perform batch search address.

import os

from azure.core.exceptions import HttpResponseError

subscription_key = os.getenv("AZURE_SUBSCRIPTION_KEY", "your subscription key")

def geocode_batch():
    from azure.core.credentials import AzureKeyCredential
    from azure.maps.search import MapsSearchClient

    maps_search_client = MapsSearchClient(credential=AzureKeyCredential(subscription_key))
    try:
        result = maps_search_client.get_geocoding_batch({
          "batchItems": [
            {"query": "400 Broad St, Seattle, WA 98109"},
            {"query": "15127 NE 24th Street, Redmond, WA 98052"},
          ],
        },)

        if not result.get('batchItems', False):
            print("No batchItems in geocoding")
            return

        for item in result['batchItems']:
            if not item.get('features', False):
                print(f"No features in item: {item}")
                continue

            coordinates = item['features'][0]['geometry']['coordinates']
            longitude, latitude = coordinates
            print(longitude, latitude)

    except HttpResponseError as exception:
        if exception.error is not None:
            print(f"Error Code: {exception.error.code}")
            print(f"Message: {exception.error.message}")

if __name__ == '__main__':
    geocode_batch()

Get polygons for a given location

This sample demonstrates how to search polygons.

import os

from azure.core.exceptions import HttpResponseError
from azure.maps.search import Resolution
from azure.maps.search import BoundaryResultType


subscription_key = os.getenv("AZURE_SUBSCRIPTION_KEY", "your subscription key")

def get_polygon():
    from azure.core.credentials import AzureKeyCredential
    from azure.maps.search import MapsSearchClient

    maps_search_client = MapsSearchClient(credential=AzureKeyCredential(subscription_key))
    try:
        result = maps_search_client.get_polygon(
          coordinates=[-122.204141, 47.61256],
          result_type=BoundaryResultType.LOCALITY,
          resolution=Resolution.SMALL,
        )

        if not result.get('geometry', False):
            print("No geometry found")
            return

        print(result["geometry"])
    except HttpResponseError as exception:
        if exception.error is not None:
            print(f"Error Code: {exception.error.code}")
            print(f"Message: {exception.error.message}")

if __name__ == '__main__':
    get_polygon()

Make a Reverse Address Search to translate coordinate location to street address

You can translate coordinates into human-readable street addresses. This process is also called reverse geocoding. This is often used for applications that consume GPS feeds and want to discover addresses at specific coordinate points.

import os

from azure.core.exceptions import HttpResponseError

subscription_key = os.getenv("AZURE_SUBSCRIPTION_KEY", "your subscription key")

def reverse_geocode():
    from azure.core.credentials import AzureKeyCredential
    from azure.maps.search import MapsSearchClient

    maps_search_client = MapsSearchClient(credential=AzureKeyCredential(subscription_key))
    try:
        result = maps_search_client.get_reverse_geocoding(coordinates=[-122.138679, 47.630356])
        if result.get('features', False):
            props = result['features'][0].get('properties', {})
            if props and props.get('address', False):
                print(props['address'].get('formattedAddress', 'No formatted address found'))
            else:
                print("Address is None")
        else:
            print("No features available")
    except HttpResponseError as exception:
        if exception.error is not None:
            print(f"Error Code: {exception.error.code}")
            print(f"Message: {exception.error.message}")


if __name__ == '__main__':
   reverse_geocode()

Batch request for reverse geocoding

This sample demonstrates how to perform reverse search by given coordinates in batch.

import os
from azure.core.credentials import AzureKeyCredential
from azure.core.exceptions import HttpResponseError
from azure.maps.search import MapsSearchClient

subscription_key = os.getenv("AZURE_SUBSCRIPTION_KEY", "your subscription key")

def reverse_geocode_batch():
    maps_search_client = MapsSearchClient(credential=AzureKeyCredential(subscription_key))
    try:
        result = maps_search_client.get_reverse_geocoding_batch({
              "batchItems": [
                {"coordinates": [-122.349309, 47.620498]},
                {"coordinates": [-122.138679, 47.630356]},
              ],
            },)

        if result.get('batchItems', False):
            for idx, item in enumerate(result['batchItems']):
                features = item['features']
                if features:
                    props = features[0].get('properties', {})
                    if props and props.get('address', False):
                        print(
                            props['address'].get('formattedAddress', f'No formatted address for item {idx + 1} found'))
                    else:
                        print(f"Address {idx + 1} is None")
                else:
                    print(f"No features available for item {idx + 1}")
        else:
            print("No batch items found")
    except HttpResponseError as exception:
        if exception.error is not None:
            print(f"Error Code: {exception.error.code}")
            print(f"Message: {exception.error.message}")


if __name__ == '__main__':
   reverse_geocode_batch()

Troubleshooting

General

Maps Search clients raise exceptions defined in Azure Core.

This list can be used for reference to catch thrown exceptions. To get the specific error code of the exception, use the error_code attribute, i.e, exception.error_code.

Logging

This library uses the standard logging library for logging. Basic information about HTTP sessions (URLs, headers, etc.) is logged at INFO level.

Detailed DEBUG level logging, including request/response bodies and unredacted headers, can be enabled on a client with the logging_enable argument:

import sys
import logging
from azure.maps.search import MapsSearchClient

# Create a logger for the 'azure.maps.search' SDK
logger = logging.getLogger('azure.maps.search')
logger.setLevel(logging.DEBUG)

# Configure a console output
handler = logging.StreamHandler(stream=sys.stdout)
logger.addHandler(handler)

Similarly, logging_enable can enable detailed logging for a single operation, even when it isn't enabled for the client:

service_client.get_service_stats(logging_enable=True)

Additional

Still running into issues? If you encounter any bugs or have suggestions, please file an issue in the Issues section of the project.

Next steps

More sample code

Get started with our Maps Search samples (Async Version samples).

Several Azure Maps Search Python SDK samples are available to you in the SDK's GitHub repository. These samples provide example code for additional scenarios commonly encountered while working with Maps Search

set AZURE_SUBSCRIPTION_KEY="<RealSubscriptionKey>"

pip install azure-maps-search --pre

python samples/sample_geocode.py
python samples/sample_geocode_batch.py
python samples/sample_get_polygon.py
python samples/sample_reverse_geocode.py
python samples/sample_reverse_geocode_batch.py

Notes: --pre flag can be optionally added, it is to include pre-release and development versions for pip install. By default, pip only finds stable versions.

Further detail please refer to Samples Introduction

Additional documentation

For more extensive documentation on Azure Maps Search, see the Azure Maps Search documentation on docs.microsoft.com.

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.