> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tktchurch.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Linked Providers

> Get all authentication providers linked to the current account

<Note>
  This endpoint requires authentication.
</Note>

### Response

<ResponseField name="primaryProvider" type="string">
  The primary authentication provider. One of:

  * `local`: Local authentication using email and password
  * `google`: Google OAuth authentication
  * `facebook`: Facebook OAuth authentication
  * `apple`: Apple Sign In authentication
</ResponseField>

<ResponseField name="linkedProviders" type="array">
  List of linked authentication providers

  <Expandable title="Linked Provider">
    <ResponseField name="provider" type="string">
      The provider type (google, facebook, or apple)
    </ResponseField>

    <ResponseField name="providerId" type="string">
      The provider's unique identifier for the user
    </ResponseField>

    <ResponseField name="email" type="string" required={false}>
      The email address associated with this provider
    </ResponseField>

    <ResponseField name="displayName" type="string" required={false}>
      The display name from the provider
    </ResponseField>

    <ResponseField name="photoUrl" type="string" required={false}>
      URL to the user's profile photo from the provider
    </ResponseField>
  </Expandable>
</ResponseField>

### Error Responses

<ResponseField name="error" type="object">
  Error details when the request fails

  <Expandable title="Error Object">
    <ResponseField name="status" type="integer">
      HTTP status code
    </ResponseField>

    <ResponseField name="reason" type="string">
      Error message explaining why the request failed
    </ResponseField>
  </Expandable>
</ResponseField>

<Note>
  Common error cases:

  * 401 Unauthorized: Missing or invalid access token
</Note>

<RequestExample>
  ```bash cURL theme={null}
  curl -X GET "https://api.tktchurch.com/v1/auth/linked-providers" \
    -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIs..."
  ```

  ```javascript JavaScript theme={null}
  const getLinkedProviders = async (accessToken) => {
    const response = await fetch(
      'https://api.tktchurch.com/v1/auth/linked-providers',
      {
        method: 'GET',
        headers: {
          'Authorization': `Bearer ${accessToken}`
        }
      }
    );

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error.reason);
    }

    return response.json();
  };

  // Usage
  try {
    const providers = await getLinkedProviders('eyJhbGciOiJIUzI1NiIs...');
    console.log('Primary provider:', providers.primaryProvider);
    console.log('Linked providers:', providers.linkedProviders);
  } catch (error) {
    console.error('Failed to get linked providers:', error.message);
  }
  ```

  ```swift Swift theme={null}
  struct LinkedProvider: Codable {
      let provider: String
      let providerId: String
      let email: String?
      let displayName: String?
      let photoUrl: String?
  }

  struct LinkedProvidersResponse: Codable {
      let primaryProvider: String
      let linkedProviders: [LinkedProvider]
  }

  func getLinkedProviders(accessToken: String) async throws -> LinkedProvidersResponse {
      var urlRequest = URLRequest(url: URL(string: "https://api.tktchurch.com/v1/auth/linked-providers")!)
      urlRequest.httpMethod = "GET"
      urlRequest.setValue("Bearer \(accessToken)", forHTTPHeaderField: "Authorization")
      
      let (data, response) = try await URLSession.shared.data(for: urlRequest)
      guard let httpResponse = response as? HTTPURLResponse else {
          throw URLError(.badServerResponse)
      }
      
      if httpResponse.statusCode != 200 {
          let error = try JSONDecoder().decode(ErrorResponse.self, from: data)
          throw error
      }
      
      return try JSONDecoder().decode(LinkedProvidersResponse.self, from: data)
  }

  // Usage
  do {
      let providers = try await getLinkedProviders(accessToken: "eyJhbGciOiJIUzI1NiIs...")
      print("Primary provider:", providers.primaryProvider)
      print("Linked providers:", providers.linkedProviders)
  } catch {
      print("Failed to get linked providers: \(error.localizedDescription)")
  }
  ```

  ```kotlin Kotlin theme={null}
  data class LinkedProvider(
      val provider: String,
      val providerId: String,
      val email: String?,
      val displayName: String?,
      val photoUrl: String?
  )

  data class LinkedProvidersResponse(
      val primaryProvider: String,
      val linkedProviders: List<LinkedProvider>
  )

  class UserService(private val client: OkHttpClient) {
      suspend fun getLinkedProviders(accessToken: String): LinkedProvidersResponse {
          val request = Request.Builder()
              .url("https://api.tktchurch.com/v1/auth/linked-providers")
              .get()
              .header("Authorization", "Bearer $accessToken")
              .build()

          client.newCall(request).execute().use { response ->
              if (!response.isSuccessful) {
                  val error = response.body?.string()?.fromJson<ErrorResponse>()
                  throw Exception(error?.reason ?: "Failed to get linked providers")
              }
              
              return response.body?.string()?.fromJson<LinkedProvidersResponse>()
                  ?: throw Exception("Empty response")
          }
      }
  }

  // Usage
  try {
      val providers = userService.getLinkedProviders("eyJhbGciOiJIUzI1NiIs...")
      println("Primary provider: ${providers.primaryProvider}")
      println("Linked providers: ${providers.linkedProviders}")
  } catch (e: Exception) {
      println("Failed to get linked providers: ${e.message}")
  }
  ```

  ```typescript React Native theme={null}
  import axios from 'axios';

  interface LinkedProvider {
    provider: 'google' | 'facebook' | 'apple';
    providerId: string;
    email?: string;
    displayName?: string;
    photoUrl?: string;
  }

  interface LinkedProvidersResponse {
    primaryProvider: 'local' | 'google' | 'facebook' | 'apple';
    linkedProviders: LinkedProvider[];
  }

  const getLinkedProviders = async (accessToken: string): Promise<LinkedProvidersResponse> => {
    try {
      const response = await axios.get(
        'https://api.tktchurch.com/v1/auth/linked-providers',
        {
          headers: {
            'Authorization': `Bearer ${accessToken}`
          },
        }
      );
      
      return response.data;
    } catch (error) {
      if (axios.isAxiosError(error)) {
        throw new Error(error.response?.data?.error?.reason || 'Failed to get linked providers');
      }
      throw error;
    }
  };

  // Usage
  try {
    const providers = await getLinkedProviders('eyJhbGciOiJIUzI1NiIs...');
    console.log('Primary provider:', providers.primaryProvider);
    console.log('Linked providers:', providers.linkedProviders);
  } catch (error) {
    console.error('Failed to get linked providers:', error.message);
  }
  ```
</RequestExample>

<ResponseExample>
  ```json 200 Success theme={null}
  {
    "primaryProvider": "local",
    "linkedProviders": [
      {
        "provider": "google",
        "providerId": "12345",
        "email": "user@example.com",
        "displayName": "John Doe",
        "photoUrl": "https://example.com/photo.jpg"
      },
      {
        "provider": "apple",
        "providerId": "67890",
        "email": "user@example.com",
        "displayName": "John Doe"
      }
    ]
  }
  ```

  ```json 401 Unauthorized theme={null}
  {
    "error": {
      "status": 401,
      "reason": "Invalid or expired access token"
    }
  }
  ```
</ResponseExample>