azure-maps-search-dotnet

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---
name: azure-maps-search-dotnet
description: |
  Azure Maps SDK for .NET. Location-based services including geocoding, routing, rendering, geolocation, and weather. Use for address search, directions, map tiles, IP geolocation, and weather data. Triggers: "Azure Maps", "MapsSearchClient", "MapsRoutingClient", "MapsRenderingClient", "geocoding .NET", "route directions", "map tiles", "geolocation".
license: MIT
metadata:
  author: Microsoft
  version: "1.0.0"
  package: Azure.Maps.Search
---

# Azure Maps (.NET)

Azure Maps SDK for .NET providing location-based services: geocoding, routing, rendering, geolocation, and weather.

## Installation

```bash
# Search (geocoding, reverse geocoding)
dotnet add package Azure.Maps.Search --prerelease

# Routing (directions, route matrix)
dotnet add package Azure.Maps.Routing --prerelease

# Rendering (map tiles, static images)
dotnet add package Azure.Maps.Rendering --prerelease

# Geolocation (IP to location)
dotnet add package Azure.Maps.Geolocation --prerelease

# Weather
dotnet add package Azure.Maps.Weather --prerelease

# Resource Management (account management, SAS tokens)
dotnet add package Azure.ResourceManager.Maps --prerelease

# Required for authentication
dotnet add package Azure.Identity
```

**Current Versions**:
- `Azure.Maps.Search`: v2.0.0-beta.5
- `Azure.Maps.Routing`: v1.0.0-beta.4
- `Azure.Maps.Rendering`: v2.0.0-beta.1
- `Azure.Maps.Geolocation`: v1.0.0-beta.3
- `Azure.ResourceManager.Maps`: v1.1.0-beta.2

## Environment Variables

```bash
AZURE_MAPS_SUBSCRIPTION_KEY=<your-subscription-key>  # Only required for AzureKeyCredential auth
AZURE_MAPS_CLIENT_ID=<your-client-id>  # Required: Azure Maps client ID
AZURE_TOKEN_CREDENTIALS=prod  # Required only if DefaultAzureCredential is used in production
```

## Authentication

### Subscription Key (Shared Key)

```csharp
using Azure;
using Azure.Maps.Search;

var subscriptionKey = Environment.GetEnvironmentVariable("AZURE_MAPS_SUBSCRIPTION_KEY");
var credential = new AzureKeyCredential(subscriptionKey);

var client = new MapsSearchClient(credential);
```

### Microsoft Entra Token Credential

```csharp
using Azure.Identity;
using Azure.Maps.Search;

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
var credential = new DefaultAzureCredential(
    DefaultAzureCredential.DefaultEnvironmentVariableName
);
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet#credential-classes
// var credential = new ManagedIdentityCredential();
var clientId = Environment.GetEnvironmentVariable("AZURE_MAPS_CLIENT_ID");

var client = new MapsSearchClient(credential, clientId);
```

### Shared Access Signature (SAS)

```csharp
using Azure;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager;
using Azure.ResourceManager.Maps;
using Azure.ResourceManager.Maps.Models;
using Azure.Maps.Search;

// Authenticate with Azure Resource Manager
ArmClient armClient = new ArmClient(new DefaultAzureCredential());

// Get Maps account resource
ResourceIdentifier mapsAccountResourceId = MapsAccountResource.CreateResourceIdentifier(
    subscriptionId, resourceGroupName, accountName);
MapsAccountResource mapsAccount = armClient.GetMapsAccountResource(mapsAccountResourceId);

// Generate SAS token
MapsAccountSasContent sasContent = new MapsAccountSasContent(
    MapsSigningKey.PrimaryKey, 
    principalId, 
    maxRatePerSecond: 500, 
    start: DateTime.UtcNow.ToString("O"), 
    expiry: DateTime.UtcNow.AddDays(1).ToString("O"));

Response<MapsAccountSasToken> sas = mapsAccount.GetSas(sasContent);

// Create client with SAS token
var sasCredential = new AzureSasCredential(sas.Value.AccountSasToken);
var client = new MapsSearchClient(sasCredential);
```

## Client Hierarchy

```
Azure.Maps.Search
└── MapsSearchClient
    ├── GetGeocoding()                    → Geocode