> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://next.developer.frame.io/camera-to-cloud/api-reference/device-asset-create-deprecated/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://next.developer.frame.io/_mcp/server.

# Create C2C asset

POST https://api.frame.io/v2/assets
Content-Type: application/json

**THIS ENDPOINT IS DEPRECATED**. Please use `/v2/devices/assets` instead. While this endpoint will continue to function as normal, we ask that integrations begin using the new endpoint instead for consistency with the rest of the C2C API.

Asset upload initiation specifically for C2C devices and applications.

Reference: https://next.developer.frame.io/camera-to-cloud/api-reference/device-asset-create

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Headers

- `x-client-version` (string, optional, default: 0.0.0) — Firmware or software version of a C2C integration. Will be used to determine the correct Device Model configuration for the device when multiple are available. Must be a valid semantic version. For more on semantic versions, see here: https://semver.org/

### Body (application/json)

This endpoint expects an object.

- `name` (string, optional, default: ) — The name the asset should have in Frame.io. This value does not have to match the name of the file on disk; it can be whatever you want it to be in Frame.io. Required if `is_realtime_upload` is `false`. If `is_realtime_upload` is `true`, must containa valid extension in the form of `".[ext]"`, unless `extension` is provided, in which case this field may be `null` or omitted.
- `extension` (string, optional) — Required when `is_realtime_upload` is `true`, when `name` is not known at time of asset creation. If `name` is provided, must match extension of that value. Ignored when `is_realtime_upload` is `false`. When supplied, asset will be creted with `name` value of `"[new file].extension"`.
- `filetype` (string, optional) — MIME type like `video/quicktime`. Many languages have built in utilities for detecting file mimetype (see Go and Python for examples). Required if `is_realtime_upload` is `true`.
- `auto_version_id` (string, optional) — The asset you'd like this to be the next version of
- `is_realtime_upload` (boolean, optional, default: false) — If `true`, File data for this asset is to be uploaded through the Real-time Uploads API. If `false`, File data for this asset will be uploaded through the default API. Must be `false` if `filetype` is not `file`.
- `filesize` (V2AssetsPostRequestBodyContentApplicationJsonSchemaFilesize, optional)
- `channel` (V2AssetsPostRequestBodyContentApplicationJsonSchemaChannel, optional)
- `offset` (V2AssetsPostRequestBodyContentApplicationJsonSchemaOffset, optional)
- `parts` (V2AssetsPostRequestBodyContentApplicationJsonSchemaParts, optional)

## Response

### 200

Asset create success response. When `is_realtime_asset` was set to `true` in the request, a simplified payload will be returned.

- `Devices_deviceAssetCreateDeprecated_Response_200`

## Errors

### 400 Bad Request Error

Bad Request

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 401 Unauthorized Error

Unauthorized response

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 404 Not Found Error

Not Found response

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 409 Conflict Error

- `code` (enum, required)
  - Allowed values: `409`
- `errors` (list of V2AssetsPostResponsesContentApplicationJsonSchemaErrorsItems, required)
- `message` (enum, required)
  - Allowed values: `Channel Paused`, `invalid_client`, `slow_down`

### 429 Too Many Requests Error

Standard frame.io API error response.

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

## Types

### V2AssetsPostRequestBodyContentApplicationJsonSchemaFilesize

### V2AssetsPostRequestBodyContentApplicationJsonSchemaChannel

### V2AssetsPostRequestBodyContentApplicationJsonSchemaOffset

### V2AssetsPostRequestBodyContentApplicationJsonSchemaParts

### RealtimeAssetResponse

- `id` (string, required) — The ID for this asset, can be used in places like `https://app.frame.io/player/:id` to go directly to an asset.
- `name` (string, required) — Represents the name of the asset (filename).

### HttpErrorErrorsItems

- `code` (integer, optional)
- `detail` (string, optional)
- `status` (integer, optional)
- `title` (string, optional)

### V2AssetsPostResponsesContentApplicationJsonSchemaErrorsItems

- `code` (enum, required)
  - Allowed values: `409`
- `detail` (string, required)
- `status` (enum, required)
  - Allowed values: `409`
- `title` (string, required)

## Examples

### Regular upload with known filename (application/json)

**Request**

```json
{
  "name": "my_video.mov",
  "filetype": "video/quicktime",
  "is_realtime_upload": false,
  "filesize": 1073741824
}
```

**SDK Code**

```python Regular upload with known filename (application/json)
import requests

url = "https://api.frame.io/v2/assets"

payload = {
    "name": "my_video.mov",
    "filetype": "video/quicktime",
    "is_realtime_upload": False,
    "filesize": 1073741824
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Regular upload with known filename (application/json)
const url = 'https://api.frame.io/v2/assets';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"my_video.mov","filetype":"video/quicktime","is_realtime_upload":false,"filesize":1073741824}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Regular upload with known filename (application/json)
package main

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

func main() {

	url := "https://api.frame.io/v2/assets"

	payload := strings.NewReader("{\n  \"name\": \"my_video.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

```ruby Regular upload with known filename (application/json)
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v2/assets")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"my_video.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}"

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

```java Regular upload with known filename (application/json)
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"my_video.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}")
  .asString();
```

```php Regular upload with known filename (application/json)
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/assets', [
  'body' => '{
  "name": "my_video.mov",
  "filetype": "video/quicktime",
  "is_realtime_upload": false,
  "filesize": 1073741824
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Regular upload with known filename (application/json)
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"my_video.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Regular upload with known filename (application/json)
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "my_video.mov",
  "filetype": "video/quicktime",
  "is_realtime_upload": false,
  "filesize": 1073741824
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/assets")! 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 as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Regular upload as new version of existing asset (application/json)

**Request**

```json
{
  "name": "my_video_v2.mov",
  "filetype": "video/quicktime",
  "auto_version_id": "4386e276-6317-4d8d-b82c-8a16df9b66d2",
  "is_realtime_upload": false,
  "filesize": 1073741824
}
```

**SDK Code**

```python Regular upload as new version of existing asset (application/json)
import requests

url = "https://api.frame.io/v2/assets"

payload = {
    "name": "my_video_v2.mov",
    "filetype": "video/quicktime",
    "auto_version_id": "4386e276-6317-4d8d-b82c-8a16df9b66d2",
    "is_realtime_upload": False,
    "filesize": 1073741824
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Regular upload as new version of existing asset (application/json)
const url = 'https://api.frame.io/v2/assets';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"my_video_v2.mov","filetype":"video/quicktime","auto_version_id":"4386e276-6317-4d8d-b82c-8a16df9b66d2","is_realtime_upload":false,"filesize":1073741824}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Regular upload as new version of existing asset (application/json)
package main

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

func main() {

	url := "https://api.frame.io/v2/assets"

	payload := strings.NewReader("{\n  \"name\": \"my_video_v2.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"auto_version_id\": \"4386e276-6317-4d8d-b82c-8a16df9b66d2\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

```ruby Regular upload as new version of existing asset (application/json)
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v2/assets")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"my_video_v2.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"auto_version_id\": \"4386e276-6317-4d8d-b82c-8a16df9b66d2\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}"

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

```java Regular upload as new version of existing asset (application/json)
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"my_video_v2.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"auto_version_id\": \"4386e276-6317-4d8d-b82c-8a16df9b66d2\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}")
  .asString();
```

```php Regular upload as new version of existing asset (application/json)
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/assets', [
  'body' => '{
  "name": "my_video_v2.mov",
  "filetype": "video/quicktime",
  "auto_version_id": "4386e276-6317-4d8d-b82c-8a16df9b66d2",
  "is_realtime_upload": false,
  "filesize": 1073741824
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Regular upload as new version of existing asset (application/json)
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"my_video_v2.mov\",\n  \"filetype\": \"video/quicktime\",\n  \"auto_version_id\": \"4386e276-6317-4d8d-b82c-8a16df9b66d2\",\n  \"is_realtime_upload\": false,\n  \"filesize\": 1073741824\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Regular upload as new version of existing asset (application/json)
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "my_video_v2.mov",
  "filetype": "video/quicktime",
  "auto_version_id": "4386e276-6317-4d8d-b82c-8a16df9b66d2",
  "is_realtime_upload": false,
  "filesize": 1073741824
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/assets")! 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 as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Real-time upload with known filename (application/json)

**Request**

```json
{
  "name": "my_video.mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
}
```

**SDK Code**

```python Real-time upload with known filename (application/json)
import requests

url = "https://api.frame.io/v2/assets"

payload = {
    "name": "my_video.mp4",
    "filetype": "video/mp4",
    "is_realtime_upload": True,
    "filesize": 1073741824,
    "channel": 0,
    "offset": -10,
    "parts": 100
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Real-time upload with known filename (application/json)
const url = 'https://api.frame.io/v2/assets';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"my_video.mp4","filetype":"video/mp4","is_realtime_upload":true,"filesize":1073741824,"channel":0,"offset":-10,"parts":100}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Real-time upload with known filename (application/json)
package main

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

func main() {

	url := "https://api.frame.io/v2/assets"

	payload := strings.NewReader("{\n  \"name\": \"my_video.mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

```ruby Real-time upload with known filename (application/json)
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v2/assets")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"my_video.mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}"

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

```java Real-time upload with known filename (application/json)
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"my_video.mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}")
  .asString();
```

```php Real-time upload with known filename (application/json)
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/assets', [
  'body' => '{
  "name": "my_video.mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Real-time upload with known filename (application/json)
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"my_video.mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Real-time upload with known filename (application/json)
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "my_video.mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/assets")! 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 as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Real-time upload with unknown filename (application/json)

**Request**

```json
{
  "extension": ".mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
}
```

**SDK Code**

```python Real-time upload with unknown filename (application/json)
import requests

url = "https://api.frame.io/v2/assets"

payload = {
    "extension": ".mp4",
    "filetype": "video/mp4",
    "is_realtime_upload": True,
    "filesize": 1073741824,
    "channel": 0,
    "offset": -10,
    "parts": 100
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Real-time upload with unknown filename (application/json)
const url = 'https://api.frame.io/v2/assets';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"extension":".mp4","filetype":"video/mp4","is_realtime_upload":true,"filesize":1073741824,"channel":0,"offset":-10,"parts":100}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Real-time upload with unknown filename (application/json)
package main

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

func main() {

	url := "https://api.frame.io/v2/assets"

	payload := strings.NewReader("{\n  \"extension\": \".mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

```ruby Real-time upload with unknown filename (application/json)
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v2/assets")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"extension\": \".mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}"

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

```java Real-time upload with unknown filename (application/json)
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"extension\": \".mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}")
  .asString();
```

```php Real-time upload with unknown filename (application/json)
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/assets', [
  'body' => '{
  "extension": ".mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Real-time upload with unknown filename (application/json)
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"extension\": \".mp4\",\n  \"filetype\": \"video/mp4\",\n  \"is_realtime_upload\": true,\n  \"filesize\": 1073741824,\n  \"channel\": 0,\n  \"offset\": -10,\n  \"parts\": 100\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Real-time upload with unknown filename (application/json)
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "extension": ".mp4",
  "filetype": "video/mp4",
  "is_realtime_upload": true,
  "filesize": 1073741824,
  "channel": 0,
  "offset": -10,
  "parts": 100
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/assets")! 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 as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```