> ## Documentation Index
> Fetch the complete documentation index at: https://docs-staging-quickstart-revamp.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> Learn how to create, update, merge, and delete metadata with the Management API.

# Manage Metadata Using the Management API

## User metadata

### Create user metadata

To create a user with the following profile details:

```json lines
{
    "email": "jane.doe@example.com",
    "user_metadata": {
        "hobby": "surfing"
    },
    "app_metadata": {
        "plan": "full"
    }
}
```

Make the following `POST` call to the <Tooltip tip="Management API: A product to allow customers to perform administrative tasks." cta="View Glossary" href="/docs/glossary?term=Management+API">Management API</Tooltip> [`/post_users`](https://auth0.com/docs/api/management/v2#!/Users/post_users) endpoint to create the user and set the property values:

<CodeGroup>
  ```bash cURL lines
  curl --request POST \
    --url 'https://{yourDomain}/api/v2/users' \
    --header 'authorization: Bearer MGMT_API_ACCESS_TOKEN' \
    --header 'content-type: application/json' \
    --data '{"email": "jane.doe@example.com", "user_metadata": {"hobby": "surfing"}, "app_metadata": {"plan": "full"}}'
  ```

  ```csharp C# lines
  var client = new RestClient("https://{yourDomain}/api/v2/users");
  var request = new RestRequest(Method.POST);
  request.AddHeader("authorization", "Bearer MGMT_API_ACCESS_TOKEN");
  request.AddHeader("content-type", "application/json");
  request.AddParameter("application/json", "{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go lines expandable
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/api/v2/users"

  	payload := strings.NewReader("{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}")

  	req, _ := http.NewRequest("POST", url, payload)

  	req.Header.Add("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
  	req.Header.Add("content-type", "application/json")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java lines
  HttpResponse<String> response = Unirest.post("https://{yourDomain}/api/v2/users")
    .header("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
    .header("content-type", "application/json")
    .body("{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}")
    .asString();
  ```

  ```javascript Node.JS lines
  var axios = require("axios").default;

  var options = {
    method: 'POST',
    url: 'https://{yourDomain}/api/v2/users',
    headers: {
      authorization: 'Bearer MGMT_API_ACCESS_TOKEN',
      'content-type': 'application/json'
    },
    data: {
      email: 'jane.doe@example.com',
      user_metadata: {hobby: 'surfing'},
      app_metadata: {plan: 'full'}
    }
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```obj-c Obj-C lines expandable
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"authorization": @"Bearer MGMT_API_ACCESS_TOKEN",
                             @"content-type": @"application/json" };
  NSDictionary *parameters = @{ @"email": @"jane.doe@example.com",
                                @"user_metadata": @{ @"hobby": @"surfing" },
                                @"app_metadata": @{ @"plan": @"full" } };

  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/api/v2/users"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP lines expandable
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/api/v2/users",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}",
    CURLOPT_HTTPHEADER => [
      "authorization: Bearer MGMT_API_ACCESS_TOKEN",
      "content-type: application/json"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python lines
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}"

  headers = {
      'authorization': "Bearer MGMT_API_ACCESS_TOKEN",
      'content-type': "application/json"
      }

  conn.request("POST", "/{yourDomain}/api/v2/users", payload, headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby lines
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/api/v2/users")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Post.new(url)
  request["authorization"] = 'Bearer MGMT_API_ACCESS_TOKEN'
  request["content-type"] = 'application/json'
  request.body = "{\"email\": \"jane.doe@example.com\", \"user_metadata\": {\"hobby\": \"surfing\"}, \"app_metadata\": {\"plan\": \"full\"}}"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift lines expandable
  import Foundation

  let headers = [
    "authorization": "Bearer MGMT_API_ACCESS_TOKEN",
    "content-type": "application/json"
  ]
  let parameters = [
    "email": "jane.doe@example.com",
    "user_metadata": ["hobby": "surfing"],
    "app_metadata": ["plan": "full"]
  ] as [String : Any]

  let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/api/v2/users")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "POST"
  request.allHTTPHeaderFields = headers
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</CodeGroup>

### Update user metadata

You can update a user's metadata by making a `PATCH` call to the Management API [`/patch_users_by_id`](https://auth0.com/docs/api/management/v2#!/Users/patch_users_by_id) endpoint.

Assuming you created a user with the following metadata values:

```json lines
{
    "email": "jane.doe@example.com",
    "user_metadata": {
        "hobby": "surfing"
    },
    "app_metadata": {
        "plan": "full"
    }
}
```

To update `user_metadata` and add the user's home address as a second-level property:

```json lines
{
    "addresses": {
        "home": "123 Main Street, Anytown, ST 12345"
    }
}
```

You would make the following `PATCH` call:

<CodeGroup>
  ```bash cURL lines
  curl --request PATCH \
    --url 'https://{yourDomain}/api/v2/users/user_id' \
    --header 'authorization: Bearer MGMT_API_ACCESS_TOKEN' \
    --header 'content-type: application/json' \
    --data '{"user_metadata": {"addresses": {"home": "123 Main Street, Anytown, ST 12345"}}}'
  ```

  ```csharp C# lines
  var client = new RestClient("https://{yourDomain}/api/v2/users/user_id");
  var request = new RestRequest(Method.PATCH);
  request.AddHeader("authorization", "Bearer MGMT_API_ACCESS_TOKEN");
  request.AddHeader("content-type", "application/json");
  request.AddParameter("application/json", "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go lines expandable
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/api/v2/users/user_id"

  	payload := strings.NewReader("{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}")

  	req, _ := http.NewRequest("PATCH", url, payload)

  	req.Header.Add("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
  	req.Header.Add("content-type", "application/json")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java lines
  HttpResponse<String> response = Unirest.patch("https://{yourDomain}/api/v2/users/user_id")
    .header("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
    .header("content-type", "application/json")
    .body("{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}")
    .asString();
  ```

  ```javascript Node.JS lines
  var axios = require("axios").default;

  var options = {
    method: 'PATCH',
    url: 'https://{yourDomain}/api/v2/users/user_id',
    headers: {
      authorization: 'Bearer MGMT_API_ACCESS_TOKEN',
      'content-type': 'application/json'
    },
    data: {user_metadata: {addresses: {home: '123 Main Street, Anytown, ST 12345'}}}
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```obj-c Obj-C lines expandable
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"authorization": @"Bearer MGMT_API_ACCESS_TOKEN",
                             @"content-type": @"application/json" };
  NSDictionary *parameters = @{ @"user_metadata": @{ @"addresses": @{ @"home": @"123 Main Street, Anytown, ST 12345" } } };

  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/api/v2/users/user_id"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"PATCH"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP lines expandable
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/api/v2/users/user_id",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "PATCH",
    CURLOPT_POSTFIELDS => "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}",
    CURLOPT_HTTPHEADER => [
      "authorization: Bearer MGMT_API_ACCESS_TOKEN",
      "content-type: application/json"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python lines
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}"

  headers = {
      'authorization': "Bearer MGMT_API_ACCESS_TOKEN",
      'content-type': "application/json"
      }

  conn.request("PATCH", "/{yourDomain}/api/v2/users/user_id", payload, headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby lines
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/api/v2/users/user_id")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Patch.new(url)
  request["authorization"] = 'Bearer MGMT_API_ACCESS_TOKEN'
  request["content-type"] = 'application/json'
  request.body = "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\"}}}"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift lines expandable
  import Foundation

  let headers = [
    "authorization": "Bearer MGMT_API_ACCESS_TOKEN",
    "content-type": "application/json"
  ]
  let parameters = ["user_metadata": ["addresses": ["home": "123 Main Street, Anytown, ST 12345"]]] as [String : Any]

  let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/api/v2/users/user_id")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "PATCH"
  request.allHTTPHeaderFields = headers
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</CodeGroup>

The user's profile will now appear as follows:

```json lines
{
    "email": "jane.doe@example.com",
    "user_metadata": {
        "hobby": "surfing",
        "addresses": {
            "home": "123 Main Street, Anytown, ST 12345"
        }
    },
    "app_metadata": {
        "plan": "full"
    }
}
```

<Warning>
  When you send a `PATCH` call in which you have set a property's value to `null` (for example, `{user_metadata: {color: null}}`), Auth0 **deletes** the property/value from the database. Also, patching the metadata itself with an empty object removes the metadata completely.
</Warning>

### Merge user metadata

Only properties at the root level are merged into the object. All lower-level properties will be replaced.

For example, to add a user's work address as an additional inner property, you would have to include the complete contents of the `addresses` property. Since the `addresses` object is a root-level property, it will be merged into the final JSON object representing the user, but its sub-properties will not.

```json lines
{
  "user_metadata": {
    "addresses": {
      "home": "123 Main Street, Anytown, ST 12345",
      "work": "100 Industrial Way, Anytown, ST 12345"
    }
  }
}
```

Therefore, the corresponding `PATCH` call to the API would be:

<CodeGroup>
  ```bash cURL lines
  curl --request PATCH \
    --url 'https://{yourDomain}/api/v2/users/user_id' \
    --header 'authorization: Bearer MGMT_API_ACCESS_TOKEN' \
    --header 'content-type: application/json' \
    --data '{"user_metadata": {"addresses": {"home": "123 Main Street, Anytown, ST 12345", "work": "100 Industrial Way, Anytown, ST 12345"}}}'
  ```

  ```csharp C# lines
  var client = new RestClient("https://{yourDomain}/api/v2/users/user_id");
  var request = new RestRequest(Method.PATCH);
  request.AddHeader("authorization", "Bearer MGMT_API_ACCESS_TOKEN");
  request.AddHeader("content-type", "application/json");
  request.AddParameter("application/json", "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go lines expandable
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/api/v2/users/user_id"

  	payload := strings.NewReader("{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}")

  	req, _ := http.NewRequest("PATCH", url, payload)

  	req.Header.Add("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
  	req.Header.Add("content-type", "application/json")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java lines
  HttpResponse<String> response = Unirest.patch("https://{yourDomain}/api/v2/users/user_id")
    .header("authorization", "Bearer MGMT_API_ACCESS_TOKEN")
    .header("content-type", "application/json")
    .body("{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}")
    .asString();
  ```

  ```javascript Node.JS lines
  var axios = require("axios").default;

  var options = {
    method: 'PATCH',
    url: 'https://{yourDomain}/api/v2/users/user_id',
    headers: {
      authorization: 'Bearer MGMT_API_ACCESS_TOKEN',
      'content-type': 'application/json'
    },
    data: {
      user_metadata: {
        addresses: {
          home: '123 Main Street, Anytown, ST 12345',
          work: '100 Industrial Way, Anytown, ST 12345'
        }
      }
    }
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```obj-c Obj-C lines expandable
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"authorization": @"Bearer MGMT_API_ACCESS_TOKEN",
                             @"content-type": @"application/json" };
  NSDictionary *parameters = @{ @"user_metadata": @{ @"addresses": @{ @"home": @"123 Main Street, Anytown, ST 12345", @"work": @"100 Industrial Way, Anytown, ST 12345" } } };

  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/api/v2/users/user_id"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"PATCH"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP lines expandable
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/api/v2/users/user_id",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "PATCH",
    CURLOPT_POSTFIELDS => "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}",
    CURLOPT_HTTPHEADER => [
      "authorization: Bearer MGMT_API_ACCESS_TOKEN",
      "content-type: application/json"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python lines
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}"

  headers = {
      'authorization': "Bearer MGMT_API_ACCESS_TOKEN",
      'content-type': "application/json"
      }

  conn.request("PATCH", "/{yourDomain}/api/v2/users/user_id", payload, headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby lines
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/api/v2/users/user_id")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Patch.new(url)
  request["authorization"] = 'Bearer MGMT_API_ACCESS_TOKEN'
  request["content-type"] = 'application/json'
  request.body = "{\"user_metadata\": {\"addresses\": {\"home\": \"123 Main Street, Anytown, ST 12345\", \"work\": \"100 Industrial Way, Anytown, ST 12345\"}}}"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift lines expandable
  import Foundation

  let headers = [
    "authorization": "Bearer MGMT_API_ACCESS_TOKEN",
    "content-type": "application/json"
  ]
  let parameters = ["user_metadata": ["addresses": [
        "home": "123 Main Street, Anytown, ST 12345",
        "work": "100 Industrial Way, Anytown, ST 12345"
      ]]] as [String : Any]

  let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/api/v2/users/user_id")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "PATCH"
  request.allHTTPHeaderFields = headers
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</CodeGroup>

### Delete user metadata

You can delete `user_metadata`:

```json lines
{
  "user_metadata": {}
}
```

## App metadata

Patching the metadata with an empty object removes the metadata completely. For example, sending this body removes everything in `app_metadata`:

```json lines
{
  "app_metadata": {}
}
```

## Client metadata

### Create applications with client metadata

A `clientMetadata` object can be included when creating a new application via the `POST /api/v2/` applications endpoint.

### Read client metadata

Client metadata is included in the response to the `GET /api/v2/clients` and `GET /api/v2/client/{id}` endpoints.

### Update client metadata

Client metadata can be updated using the [`PATCH /api/v2/clients/{id}`](https://auth0.com/docs/api/management/v2#!/Users/patch_users_by_id) endpoint, supplying an application object with the `clientMetadata property`, which has a value that consists of an object containing the metadata you'd like to change.

**Application before:**

```json lines
{
  ...
  "name": "myclient",
  "client_metadata": {
    "mycolor": "red",
    "myflavor": "grape"
  }
  ...
}
```

Request: `PATCH /api/v2/client/myclientid123` with body:

```json lines
{ "client_metadata": { "mycolor": "blue" } }
```

**Application after:**

```json lines
{
  "name": "myclient",
  "client_metadata": {
    "mycolor": "blue",
    "myflavor": "grape"
  }
  ...
}
```

### Delete client metadata properties and values

Client metadata keys can be removed by issuing a PATCH, as described in "Update app\_metadata" above, but supplying `null` for the key value. This behavior matches that of the `user_metadata` and `app_metadata` properties in the `PATCH` [/api/v2/users/{id}](https://auth0.com/docs/api/management/v2#!/Users/patch_users_by_id) endpoint.

## Learn more

* [Management API Access Tokens](/docs/secure/tokens/access-tokens/management-api-access-tokens)
* [Configure Application Metadata](/docs/get-started/applications/configure-application-metadata)