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# Create a sub-network

POST https://api.ocpplab.io/emsp/networks
Content-Type: application/json

A named slice of one of your base networks: some of its CPOs, optionally filtered by country, power, parking and facilities.

Reference: https://docs.ocpplab.io/api-reference/emsp/networks/create

## Authentication

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

## Request

### Headers

- `Idempotency-Key` (string, required) — A unique key you choose for this call, e.g. a UUID. Retrying with the same key returns the first result instead of acting twice.

### Body (application/json)

This endpoint expects a NetworkCreateRequest.

- `name` (string, required)
- `parent_network_id` (integer, required)
- `cpo_ids` (list of string, optional, nullable)
- `description` (string, optional, nullable)
- `countries` (list of string, optional, nullable)
- `power_types` (list of string, optional, nullable)
- `parking_types` (list of string, optional, nullable)
- `facilities` (list of string, optional, nullable)
- `auto_accept_cpo_additions` (boolean, optional, nullable, default: false)
- `publicly_accessible` (boolean, optional, nullable, default: false)

## Response

### 201

The created sub-network.

- `network_id` (integer, required)
- `name` (string, required)
- `network_type` (NetworkResponseNetworkType, required)
- `published` (boolean, required)
- `publish_state` (NetworkResponsePublishState, required)
- `organization_id` (string, required)
- `emp_identity_id` (integer, required)
- `cpo_ids` (list of string, required)
- `protocol` (string, required)
- `publicly_accessible` (boolean, required)
- `auto_accept_cpo_additions` (boolean, required)
- `created_at` (datetime, required)
- `updated_at` (datetime, required)
- `unpublish_started_at` (datetime, optional, nullable)
- `unpublish_drain_until` (datetime, optional, nullable)
- `description` (string, optional, nullable)
- `parent_network_id` (integer, optional, nullable)
- `countries` (list of string, optional, nullable)
- `power_types` (list of string, optional, nullable)
- `parking_types` (list of string, optional, nullable)
- `facilities` (list of string, optional, nullable)

## Errors

### 400 Bad Request Error

A CPO is not in the parent network

- `detail` (string, required) — Human-readable error message returned by the API.

### 401 Unauthorized Error

Missing or invalid Bearer token

- `detail` (string, required) — Human-readable error message returned by the API.

### 404 Not Found Error

Network not found for your organization

- `detail` (string, required) — Human-readable error message returned by the API.

### 409 Conflict Error

Idempotency-Key already used for a different request

- `detail` (string, required) — Human-readable error message returned by the API.

### 422 Unprocessable Entity Error

The request does not match the schema

- `detail` (list of ValidationError, optional) — One entry per invalid field.

### 429 Too Many Requests Error

Gateway rate limit reached; retry after the given seconds

- `detail` (string, required) — Human-readable error message returned by the API.

### 502 Bad Gateway Error

Gateway unreachable, failing, or misconfigured

- `detail` (string, required) — Human-readable error message returned by the API.

### 504 Gateway Timeout Error

Gateway timed out

- `detail` (string, required) — Human-readable error message returned by the API.

## Types

### NetworkResponseNetworkType

### NetworkResponsePublishState

### ValidationError

Why one field is invalid.

- `loc` (list of ValidationErrorLocItems, required) — Where the field is: ``body`` / ``query`` / ``path`` / ``header``, then its name.
- `msg` (string, required) — What is wrong, in English.
- `type` (string, required) — Machine-readable error code, e.g. ``missing``.
- `input` (any, optional) — The value that was sent.
- `ctx` (ValidationErrorCtx, optional) — Details of the rule that failed, e.g. `{"le": 200}`.

### ValidationErrorLocItems

### ValidationErrorCtx

Details of the rule that failed, e.g. `{"le": 200}`.

## Examples

**Request**

```json
{
  "name": "Fleet fast chargers",
  "parent_network_id": 20,
  "cpo_ids": [
    "NL*ABC",
    "BE*XYZ"
  ],
  "description": "DC sites only",
  "countries": [
    "NLD",
    "BEL"
  ],
  "power_types": [
    "DC"
  ]
}
```

**Response**

```json
{
  "network_id": 21,
  "name": "Fleet fast chargers",
  "network_type": "TENANT",
  "published": false,
  "publish_state": "UNPUBLISHED",
  "organization_id": "550e8400-e29b-41d4-a716-446655440000",
  "emp_identity_id": 3,
  "cpo_ids": [
    "NL*ABC",
    "BE*XYZ"
  ],
  "protocol": "OCPI",
  "publicly_accessible": false,
  "auto_accept_cpo_additions": false,
  "created_at": "2026-09-30T10:00:00Z",
  "updated_at": "2026-09-30T10:00:00Z",
  "description": "DC sites only",
  "parent_network_id": 20,
  "countries": [
    "NLD",
    "BEL"
  ],
  "power_types": [
    "DC"
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api.ocpplab.io/emsp/networks"

payload = {
    "name": "Fleet fast chargers",
    "parent_network_id": 20,
    "cpo_ids": ["NL*ABC", "BE*XYZ"],
    "description": "DC sites only",
    "countries": ["NLD", "BEL"],
    "power_types": ["DC"]
}
headers = {
    "Idempotency-Key": "5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.ocpplab.io/emsp/networks';
const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: '{"name":"Fleet fast chargers","parent_network_id":20,"cpo_ids":["NL*ABC","BE*XYZ"],"description":"DC sites only","countries":["NLD","BEL"],"power_types":["DC"]}'
};

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

```go
package main

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

func main() {

	url := "https://api.ocpplab.io/emsp/networks"

	payload := strings.NewReader("{\n  \"name\": \"Fleet fast chargers\",\n  \"parent_network_id\": 20,\n  \"cpo_ids\": [\n    \"NL*ABC\",\n    \"BE*XYZ\"\n  ],\n  \"description\": \"DC sites only\",\n  \"countries\": [\n    \"NLD\",\n    \"BEL\"\n  ],\n  \"power_types\": [\n    \"DC\"\n  ]\n}")

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

	req.Header.Add("Idempotency-Key", "5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f")
	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
require 'uri'
require 'net/http'

url = URI("https://api.ocpplab.io/emsp/networks")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Fleet fast chargers\",\n  \"parent_network_id\": 20,\n  \"cpo_ids\": [\n    \"NL*ABC\",\n    \"BE*XYZ\"\n  ],\n  \"description\": \"DC sites only\",\n  \"countries\": [\n    \"NLD\",\n    \"BEL\"\n  ],\n  \"power_types\": [\n    \"DC\"\n  ]\n}"

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.ocpplab.io/emsp/networks")
  .header("Idempotency-Key", "5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Fleet fast chargers\",\n  \"parent_network_id\": 20,\n  \"cpo_ids\": [\n    \"NL*ABC\",\n    \"BE*XYZ\"\n  ],\n  \"description\": \"DC sites only\",\n  \"countries\": [\n    \"NLD\",\n    \"BEL\"\n  ],\n  \"power_types\": [\n    \"DC\"\n  ]\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.ocpplab.io/emsp/networks', [
  'body' => '{
  "name": "Fleet fast chargers",
  "parent_network_id": 20,
  "cpo_ids": [
    "NL*ABC",
    "BE*XYZ"
  ],
  "description": "DC sites only",
  "countries": [
    "NLD",
    "BEL"
  ],
  "power_types": [
    "DC"
  ]
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
    'Idempotency-Key' => '5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.ocpplab.io/emsp/networks");
var request = new RestRequest(Method.POST);
request.AddHeader("Idempotency-Key", "5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f");
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Fleet fast chargers\",\n  \"parent_network_id\": 20,\n  \"cpo_ids\": [\n    \"NL*ABC\",\n    \"BE*XYZ\"\n  ],\n  \"description\": \"DC sites only\",\n  \"countries\": [\n    \"NLD\",\n    \"BEL\"\n  ],\n  \"power_types\": [\n    \"DC\"\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Idempotency-Key": "5d1f7c2e-8b3a-4e6f-9c0d-1a2b3c4d5e6f",
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "Fleet fast chargers",
  "parent_network_id": 20,
  "cpo_ids": ["NL*ABC", "BE*XYZ"],
  "description": "DC sites only",
  "countries": ["NLD", "BEL"],
  "power_types": ["DC"]
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.ocpplab.io/emsp/networks")! 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()
```