Network

Attach an IPv6 subnet to a server interface

Since 7.1.0
POST/servers/{serverId}/interfaces/{interfaceRef}/ipv6

Attach the next free IPv6 subnet from the interface's network, or the specific subnet given. The subnet's first address is created with it.

Request

Authorization
Provide your bearer token in the Authorization header when making requests to protected resources.
Example: Authorization: Bearer ********************
Path Params#
serverIdinteger#required

A valid server ID as shown in VirtFusion.

Example: 1
interfaceRefstring#required

Which interface: primary, secondary, or the interface's tag, the ten-digit identifier shown as tag in GET /servers/{serverId}/interfaces (it is also the interface's device name on the hypervisor).

Example: primary
Body Paramsapplication/json#

Empty, or the subnet to attach.

object
subnetstring#

The first address of the subnet, e.g. 2001:db8:1::

Examples
{}
{
    "subnet": "2001:db8:0:1::"
}

Request Code Samples

Showing the The next free subnet example from Body Params.
curl --location --request POST 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6' \
--header 'Authorization: Bearer <token>' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{}'
wget --quiet --output-document=- \
  --method=POST \
  --header='Authorization: Bearer <token>' \
  --header='Accept: application/json' \
  --header='Content-Type: application/json' \
  --body-data='{}' \
  'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6'
http POST 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6' \
  'Authorization: Bearer <token>' \
  'Accept: application/json' \
  'Content-Type: application/json' <<< '{}'
const response = await fetch("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6", {
    method: "POST",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
    },
    body: JSON.stringify({}),
});

const data = await response.json();
console.log(response.status, data);
import axios from "axios";

const response = await axios({
    method: "post",
    url: "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
    },
    data: {},
});

console.log(response.status, response.data);
const https = require("https");

const payload = JSON.stringify({});

const req = https.request({
    hostname: "cp.domain.com",
    path: "/api/v1/servers/1/interfaces/primary/ipv6",
    method: "POST",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
        "Content-Length": Buffer.byteLength(payload),
    },
}, (res) => {
    let data = "";
    res.on("data", (chunk) => (data += chunk));
    res.on("end", () => console.log(res.statusCode, JSON.parse(data)));
});

req.on("error", (err) => console.error(err));
req.write(payload);
req.end();
import requests

url = "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"
headers = {
    "Authorization": "Bearer <token>",
    "Accept": "application/json",
    "Content-Type": "application/json",
}
payload = {}

response = requests.request("POST", url, headers=headers, json=payload)

print(response.status_code)
print(response.json())
import http.client
import json

conn = http.client.HTTPSConnection("cp.domain.com")
headers = {
    "Authorization": "Bearer <token>",
    "Accept": "application/json",
    "Content-Type": "application/json",
}
payload = json.dumps({})

conn.request("POST", "/api/v1/servers/1/interfaces/primary/ipv6", payload, headers)
response = conn.getresponse()

print(response.status)
print(json.loads(response.read()))
<?php

$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => '',
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => json_encode([]),
    CURLOPT_HTTPHEADER => array(
        'Authorization: Bearer <token>',
        'Accept: application/json',
        'Content-Type: application/json'
    ),
));

$response = curl_exec($curl);
curl_close($curl);

echo $response;
<?php

require 'vendor/autoload.php';

use GuzzleHttp\Client;

$client = new Client();

$response = $client->request('POST', 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6', [
    'headers' => [
        'Authorization' => 'Bearer <token>',
        'Accept' => 'application/json',
    ],
    'json' => [],
]);

echo $response->getStatusCode() . "\n";
echo $response->getBody();
package main

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

func main() {
    url := "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"
    payload := strings.NewReader(`{}`)
    req, _ := http.NewRequest("POST", url, payload)
    req.Header.Add("Authorization", "Bearer <token>")
    req.Header.Add("Accept", "application/json")
    req.Header.Add("Content-Type", "application/json")

    res, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer res.Body.Close()

    body, _ := io.ReadAll(res.Body)
    fmt.Println(res.StatusCode, string(body))
}
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        HttpClient client = HttpClient.newHttpClient();

        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"))
            .header("Authorization", "Bearer <token>")
            .header("Accept", "application/json")
            .header("Content-Type", "application/json")
            .method("POST", HttpRequest.BodyPublishers.ofString("{}"))
            .build();

        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}
import okhttp3.*;

public class Main {
    public static void main(String[] args) throws Exception {
        OkHttpClient client = new OkHttpClient();

        MediaType json = MediaType.get("application/json");
        RequestBody body = RequestBody.create("{}", json);

        Request request = new Request.Builder()
            .url("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
            .method("POST", body)
            .addHeader("Authorization", "Bearer <token>")
            .addHeader("Accept", "application/json")
            .build();

        try (Response response = client.newCall(request).execute()) {
            System.out.println(response.code());
            System.out.println(response.body().string());
        }
    }
}
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;

var client = new HttpClient();
var request = new HttpRequestMessage(new HttpMethod("POST"), "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6");
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", "<token>");
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
request.Content = new StringContent("{}", Encoding.UTF8, "application/json");

var response = await client.SendAsync(request);
Console.WriteLine((int)response.StatusCode);
Console.WriteLine(await response.Content.ReadAsStringAsync());
require "net/http"
require "json"

uri = URI("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = "Bearer <token>"
request["Accept"] = "application/json"
request["Content-Type"] = "application/json"
request.body = "{}"

response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts response.code
puts JSON.pretty_generate(JSON.parse(response.body))
import Foundation

var request = URLRequest(url: URL(string: "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")!)
request.httpMethod = "POST"
request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = "{}".data(using: .utf8)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let data = data, error == nil else { print(error ?? "request failed"); return }
    print((response as! HTTPURLResponse).statusCode)
    print(String(data: data, encoding: .utf8) ?? "")
}
task.resume()
// Cargo.toml: reqwest = { version = "0.12", features = ["blocking", "json"] }, serde_json = "1"
use reqwest::blocking::Client;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    let response = client
        .request(reqwest::Method::POST, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .bearer_auth("<token>")
        .header("Accept", "application/json")
        .header("Content-Type", "application/json")
        .body(r#"{}"#)
        .send()?;

    println!("{}", response.status());
    let json: serde_json::Value = response.json()?;
    println!("{}", serde_json::to_string_pretty(&json)?);
    Ok(())
}
// Cargo.toml: reqwest = { version = "0.12", features = ["json"] }, tokio = { version = "1", features = ["full"] }, serde_json = "1"
use reqwest::Client;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    let response = client
        .request(reqwest::Method::POST, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .bearer_auth("<token>")
        .header("Accept", "application/json")
        .header("Content-Type", "application/json")
        .body(r#"{}"#)
        .send()
        .await?;

    println!("{}", response.status());
    let json: serde_json::Value = response.json().await?;
    println!("{}", serde_json::to_string_pretty(&json)?);
    Ok(())
}
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()
    val body = """{}""".toRequestBody("application/json".toMediaType())
    val request = Request.Builder()
        .url("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .method("POST", body)
        .addHeader("Authorization", "Bearer <token>")
        .addHeader("Accept", "application/json")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.code)
        println(response.body?.string())
    }
}
// pubspec.yaml: http: ^1.2.0
import 'dart:convert';
import 'package:http/http.dart' as http;

Future<void> main() async {
  final request = http.Request('POST', Uri.parse('https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6'));
  request.headers['Authorization'] = 'Bearer <token>';
  request.headers['Accept'] = 'application/json';
  request.headers['Content-Type'] = 'application/json';
  request.body = r'''{}''';

  final response = await http.Response.fromStream(await request.send());
  print(response.statusCode);
  print(const JsonEncoder.withIndent('  ').convert(jsonDecode(response.body)));
}
#include <stdio.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl = curl_easy_init();
    if (!curl) return 1;

    struct curl_slist *headers = NULL;
    headers = curl_slist_append(headers, "Authorization: Bearer <token>");
    headers = curl_slist_append(headers, "Accept: application/json");
    headers = curl_slist_append(headers, "Content-Type: application/json");

    curl_easy_setopt(curl, CURLOPT_URL, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6");
    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{}");

    CURLcode result = curl_easy_perform(curl);
    if (result != CURLE_OK) fprintf(stderr, "%s\n", curl_easy_strerror(result));

    curl_slist_free_all(headers);
    curl_easy_cleanup(curl);
    return result == CURLE_OK ? 0 : 1;
}
$headers = @{
    Authorization = "Bearer <token>"
    Accept        = "application/json"
}

$body = @'
{}
'@

$response = Invoke-RestMethod -Uri "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6" -Method POST -Headers $headers -ContentType "application/json" -Body $body
$response | ConvertTo-Json -Depth 10
POST /api/v1/servers/1/interfaces/primary/ipv6 HTTP/1.1
Host: cp.domain.com
Authorization: Bearer <token>
Accept: application/json
Content-Type: application/json
Content-Length: 2

{}
curl --location --request POST 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6' \
--header 'Authorization: Bearer <token>' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{
    "subnet": "2001:db8:0:1::"
}'
wget --quiet --output-document=- \
  --method=POST \
  --header='Authorization: Bearer <token>' \
  --header='Accept: application/json' \
  --header='Content-Type: application/json' \
  --body-data='{
    "subnet": "2001:db8:0:1::"
}' \
  'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6'
http POST 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6' \
  'Authorization: Bearer <token>' \
  'Accept: application/json' \
  'Content-Type: application/json' <<< '{
    "subnet": "2001:db8:0:1::"
}'
const response = await fetch("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6", {
    method: "POST",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
    },
    body: JSON.stringify({
        "subnet": "2001:db8:0:1::"
    }),
});

const data = await response.json();
console.log(response.status, data);
import axios from "axios";

const response = await axios({
    method: "post",
    url: "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
    },
    data: {
        "subnet": "2001:db8:0:1::"
    },
});

console.log(response.status, response.data);
const https = require("https");

const payload = JSON.stringify({
    "subnet": "2001:db8:0:1::"
});

const req = https.request({
    hostname: "cp.domain.com",
    path: "/api/v1/servers/1/interfaces/primary/ipv6",
    method: "POST",
    headers: {
        "Authorization": "Bearer <token>",
        "Accept": "application/json",
        "Content-Type": "application/json",
        "Content-Length": Buffer.byteLength(payload),
    },
}, (res) => {
    let data = "";
    res.on("data", (chunk) => (data += chunk));
    res.on("end", () => console.log(res.statusCode, JSON.parse(data)));
});

req.on("error", (err) => console.error(err));
req.write(payload);
req.end();
import requests

url = "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"
headers = {
    "Authorization": "Bearer <token>",
    "Accept": "application/json",
    "Content-Type": "application/json",
}
payload = {
    "subnet": "2001:db8:0:1::",
}

response = requests.request("POST", url, headers=headers, json=payload)

print(response.status_code)
print(response.json())
import http.client
import json

conn = http.client.HTTPSConnection("cp.domain.com")
headers = {
    "Authorization": "Bearer <token>",
    "Accept": "application/json",
    "Content-Type": "application/json",
}
payload = json.dumps({
    "subnet": "2001:db8:0:1::",
})

conn.request("POST", "/api/v1/servers/1/interfaces/primary/ipv6", payload, headers)
response = conn.getresponse()

print(response.status)
print(json.loads(response.read()))
<?php

$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => '',
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => json_encode([
        'subnet' => '2001:db8:0:1::',
    ]),
    CURLOPT_HTTPHEADER => array(
        'Authorization: Bearer <token>',
        'Accept: application/json',
        'Content-Type: application/json'
    ),
));

$response = curl_exec($curl);
curl_close($curl);

echo $response;
<?php

require 'vendor/autoload.php';

use GuzzleHttp\Client;

$client = new Client();

$response = $client->request('POST', 'https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6', [
    'headers' => [
        'Authorization' => 'Bearer <token>',
        'Accept' => 'application/json',
    ],
    'json' => [
        'subnet' => '2001:db8:0:1::',
    ],
]);

echo $response->getStatusCode() . "\n";
echo $response->getBody();
package main

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

func main() {
    url := "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"
    payload := strings.NewReader(`{
    "subnet": "2001:db8:0:1::"
}`)
    req, _ := http.NewRequest("POST", url, payload)
    req.Header.Add("Authorization", "Bearer <token>")
    req.Header.Add("Accept", "application/json")
    req.Header.Add("Content-Type", "application/json")

    res, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer res.Body.Close()

    body, _ := io.ReadAll(res.Body)
    fmt.Println(res.StatusCode, string(body))
}
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        HttpClient client = HttpClient.newHttpClient();

        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6"))
            .header("Authorization", "Bearer <token>")
            .header("Accept", "application/json")
            .header("Content-Type", "application/json")
            .method("POST", HttpRequest.BodyPublishers.ofString("{\"subnet\":\"2001:db8:0:1::\"}"))
            .build();

        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}
import okhttp3.*;

public class Main {
    public static void main(String[] args) throws Exception {
        OkHttpClient client = new OkHttpClient();

        MediaType json = MediaType.get("application/json");
        RequestBody body = RequestBody.create("{\"subnet\":\"2001:db8:0:1::\"}", json);

        Request request = new Request.Builder()
            .url("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
            .method("POST", body)
            .addHeader("Authorization", "Bearer <token>")
            .addHeader("Accept", "application/json")
            .build();

        try (Response response = client.newCall(request).execute()) {
            System.out.println(response.code());
            System.out.println(response.body().string());
        }
    }
}
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;

var client = new HttpClient();
var request = new HttpRequestMessage(new HttpMethod("POST"), "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6");
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", "<token>");
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
request.Content = new StringContent("{\"subnet\":\"2001:db8:0:1::\"}", Encoding.UTF8, "application/json");

var response = await client.SendAsync(request);
Console.WriteLine((int)response.StatusCode);
Console.WriteLine(await response.Content.ReadAsStringAsync());
require "net/http"
require "json"

uri = URI("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = "Bearer <token>"
request["Accept"] = "application/json"
request["Content-Type"] = "application/json"
request.body = "{\"subnet\":\"2001:db8:0:1::\"}"

response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts response.code
puts JSON.pretty_generate(JSON.parse(response.body))
import Foundation

var request = URLRequest(url: URL(string: "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")!)
request.httpMethod = "POST"
request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = "{\"subnet\":\"2001:db8:0:1::\"}".data(using: .utf8)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let data = data, error == nil else { print(error ?? "request failed"); return }
    print((response as! HTTPURLResponse).statusCode)
    print(String(data: data, encoding: .utf8) ?? "")
}
task.resume()
// Cargo.toml: reqwest = { version = "0.12", features = ["blocking", "json"] }, serde_json = "1"
use reqwest::blocking::Client;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    let response = client
        .request(reqwest::Method::POST, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .bearer_auth("<token>")
        .header("Accept", "application/json")
        .header("Content-Type", "application/json")
        .body(r#"{
    "subnet": "2001:db8:0:1::"
}"#)
        .send()?;

    println!("{}", response.status());
    let json: serde_json::Value = response.json()?;
    println!("{}", serde_json::to_string_pretty(&json)?);
    Ok(())
}
// Cargo.toml: reqwest = { version = "0.12", features = ["json"] }, tokio = { version = "1", features = ["full"] }, serde_json = "1"
use reqwest::Client;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    let response = client
        .request(reqwest::Method::POST, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .bearer_auth("<token>")
        .header("Accept", "application/json")
        .header("Content-Type", "application/json")
        .body(r#"{
    "subnet": "2001:db8:0:1::"
}"#)
        .send()
        .await?;

    println!("{}", response.status());
    let json: serde_json::Value = response.json().await?;
    println!("{}", serde_json::to_string_pretty(&json)?);
    Ok(())
}
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()
    val body = """{
    "subnet": "2001:db8:0:1::"
}""".toRequestBody("application/json".toMediaType())
    val request = Request.Builder()
        .url("https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6")
        .method("POST", body)
        .addHeader("Authorization", "Bearer <token>")
        .addHeader("Accept", "application/json")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.code)
        println(response.body?.string())
    }
}
// pubspec.yaml: http: ^1.2.0
import 'dart:convert';
import 'package:http/http.dart' as http;

Future<void> main() async {
  final request = http.Request('POST', Uri.parse('https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6'));
  request.headers['Authorization'] = 'Bearer <token>';
  request.headers['Accept'] = 'application/json';
  request.headers['Content-Type'] = 'application/json';
  request.body = r'''{
    "subnet": "2001:db8:0:1::"
}''';

  final response = await http.Response.fromStream(await request.send());
  print(response.statusCode);
  print(const JsonEncoder.withIndent('  ').convert(jsonDecode(response.body)));
}
#include <stdio.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl = curl_easy_init();
    if (!curl) return 1;

    struct curl_slist *headers = NULL;
    headers = curl_slist_append(headers, "Authorization: Bearer <token>");
    headers = curl_slist_append(headers, "Accept: application/json");
    headers = curl_slist_append(headers, "Content-Type: application/json");

    curl_easy_setopt(curl, CURLOPT_URL, "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6");
    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"subnet\":\"2001:db8:0:1::\"}");

    CURLcode result = curl_easy_perform(curl);
    if (result != CURLE_OK) fprintf(stderr, "%s\n", curl_easy_strerror(result));

    curl_slist_free_all(headers);
    curl_easy_cleanup(curl);
    return result == CURLE_OK ? 0 : 1;
}
$headers = @{
    Authorization = "Bearer <token>"
    Accept        = "application/json"
}

$body = @'
{
    "subnet": "2001:db8:0:1::"
}
'@

$response = Invoke-RestMethod -Uri "https://cp.domain.com/api/v1/servers/1/interfaces/primary/ipv6" -Method POST -Headers $headers -ContentType "application/json" -Body $body
$response | ConvertTo-Json -Depth 10
POST /api/v1/servers/1/interfaces/primary/ipv6 HTTP/1.1
Host: cp.domain.com
Authorization: Bearer <token>
Accept: application/json
Content-Type: application/json
Content-Length: 34

{
    "subnet": "2001:db8:0:1::"
}

Responses

201

The interface's IPv6 subnets after the change.

#
application/json
object
ServerInterfaceIPv6 fields
idinteger#

The subnet id, used when removing.

subnetstring#

The subnet's first address, uncompressed.

cidrinteger#
blockIdinteger#
gatewaystring#nullable
resolver1string#nullable
resolver2string#nullable
addressesarray[string]#
Example
{
    "data": [
        {
            "id": 300,
            "subnet": "2001:0db8:0000:0001:0000:0000:0000:0000",
            "cidr": 64,
            "blockId": 30,
            "gateway": "2001:db8::1",
            "resolver1": "2606:4700:4700::1111",
            "resolver2": "2001:4860:4860::8888",
            "addresses": [
                "2001:0db8:0000:0001:0000:0000:0000:0001"
            ]
        }
    ]
}
401

The bearer token is missing, invalid, or expired. The response has no body.

#
No response body.
404

The server or the interface was not found.

#
application/json
msgstring#
Example
{
    "msg": "interface not found"
}
422

No subnet is available, the subnet is invalid, in use, blacklisted or outside the hyper…

#
application/json

No subnet is available, the subnet is invalid, in use, blacklisted or outside the hypervisor's blocks, or an unknown field was sent.

errorsarray[string]#
Example
{
    "errors": [
        "Subnet is in use."
    ]
}
429

Too many requests. Either the token's requests per minute are used up (see the `X-RateL…

#
application/json

Too many requests. Either the token's requests per minute are used up (see the X-RateLimit-* headers) or the calling address has failed authentication 10 times in a minute (the body then includes retry_after_seconds). Retry-After gives the seconds to wait.

object
errorsarray[string]#
retry_after_secondsinteger#

Seconds to wait before retrying. Present on the failed-authentication limit only.

Response headers
Retry-Afterinteger

Seconds to wait before retrying.

X-RateLimit-Limitinteger

The token's requests per minute (token limit only).

X-RateLimit-Remaininginteger

Requests left in the current minute (token limit only).

X-RateLimit-Resetinteger

Unix timestamp at which the minute resets (token limit only).

Examples
{
    "errors": [
        "Too Many Requests"
    ]
}
{
    "errors": [
        "Too many authentication attempts. Try again later."
    ],
    "retry_after_seconds": 42
}