curl --request POST \
  --url https://swish.app/api/2026-07/lists \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "My List",
  "items": [
    {
      "productId": 123,
      "variantId": 456,
      "quantity": 1,
      "tags": [
        "saved-from-cart"
      ],
      "source": "cart"
    }
  ]
}
'

import requests

url = "https://swish.app/api/2026-07/lists"

payload = {
    "name": "My List",
    "items": [
        {
            "productId": 123,
            "variantId": 456,
            "quantity": 1,
            "tags": ["saved-from-cart"],
            "source": "cart"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'My List',
    items: [
      {
        productId: 123,
        variantId: 456,
        quantity: 1,
        tags: ['saved-from-cart'],
        source: 'cart'
      }
    ]
  })
};

fetch('https://swish.app/api/2026-07/lists', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://swish.app/api/2026-07/lists",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'My List',
    'items' => [
        [
                'productId' => 123,
                'variantId' => 456,
                'quantity' => 1,
                'tags' => [
                                'saved-from-cart'
                ],
                'source' => 'cart'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <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;
}

package main

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

func main() {

	url := "https://swish.app/api/2026-07/lists"

	payload := strings.NewReader("{\n  \"name\": \"My List\",\n  \"items\": [\n    {\n      \"productId\": 123,\n      \"variantId\": 456,\n      \"quantity\": 1,\n      \"tags\": [\n        \"saved-from-cart\"\n      ],\n      \"source\": \"cart\"\n    }\n  ]\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(string(body))

}

HttpResponse<String> response = Unirest.post("https://swish.app/api/2026-07/lists")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"My List\",\n  \"items\": [\n    {\n      \"productId\": 123,\n      \"variantId\": 456,\n      \"quantity\": 1,\n      \"tags\": [\n        \"saved-from-cart\"\n      ],\n      \"source\": \"cart\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://swish.app/api/2026-07/lists")

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 List\",\n  \"items\": [\n    {\n      \"productId\": 123,\n      \"variantId\": 456,\n      \"quantity\": 1,\n      \"tags\": [\n        \"saved-from-cart\"\n      ],\n      \"source\": \"cart\"\n    }\n  ]\n}"

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

{
  "data": {
    "id": "67a61d5561e4f9de302c02a1",
    "name": "My List",
    "createdAt": "2025-01-01T10:00:00.000Z",
    "updatedAt": "2025-01-01T10:00:00.000Z",
    "access": "private",
    "type": "user"
  }
}

{
  "error": {
    "message": "Validation failed",
    "error": "Bad Request",
    "statusCode": 400,
    "requestId": "123e4567-e89b-12d3-a456-426614174000"
  }
}

{
  "error": {
    "message": "Failed to authenticate request",
    "error": "Unauthorized",
    "statusCode": 401,
    "requestId": "123e4567-e89b-12d3-a456-426614174000"
  }
}

{
  "error": {
    "message": "You do not have permission to access this resource",
    "error": "Forbidden",
    "statusCode": 403,
    "requestId": "123e4567-e89b-12d3-a456-426614174000"
  }
}

{
  "error": {
    "message": "The requested resource was not found",
    "error": "Not Found",
    "statusCode": 404,
    "requestId": "123e4567-e89b-12d3-a456-426614174000"
  }
}

{
  "error": {
    "message": "An unexpected error occurred",
    "error": "Internal Server Error",
    "statusCode": 500,
    "requestId": "123e4567-e89b-12d3-a456-426614174000"
  }
}