curl --request POST \
  --url https://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "rules": [
    {
      "condition": {
        "order_total": {
          "gte": 1
        }
      },
      "action": {
        "type": "free"
      }
    }
  ],
  "default_action": {
    "type": "free"
  }
}
'

import requests

url = "https://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy"

payload = {
    "rules": [
        {
            "condition": { "order_total": { "gte": 1 } },
            "action": { "type": "free" }
        }
    ],
    "default_action": { "type": "free" }
}
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({
    rules: [{condition: {order_total: {gte: 1}}, action: {type: 'free'}}],
    default_action: {type: 'free'}
  })
};

fetch('https://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy', 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://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy",
  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([
    'rules' => [
        [
                'condition' => [
                                'order_total' => [
                                                                'gte' => 1
                                ]
                ],
                'action' => [
                                'type' => 'free'
                ]
        ]
    ],
    'default_action' => [
        'type' => 'free'
    ]
  ]),
  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://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy"

	payload := strings.NewReader("{\n  \"rules\": [\n    {\n      \"condition\": {\n        \"order_total\": {\n          \"gte\": 1\n        }\n      },\n      \"action\": {\n        \"type\": \"free\"\n      }\n    }\n  ],\n  \"default_action\": {\n    \"type\": \"free\"\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://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"rules\": [\n    {\n      \"condition\": {\n        \"order_total\": {\n          \"gte\": 1\n        }\n      },\n      \"action\": {\n        \"type\": \"free\"\n      }\n    }\n  ],\n  \"default_action\": {\n    \"type\": \"free\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://staging.api.commercengine.io/api/v1/{store_id}/admin/store/shipping-cost-policy")

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  \"rules\": [\n    {\n      \"condition\": {\n        \"order_total\": {\n          \"gte\": 1\n        }\n      },\n      \"action\": {\n        \"type\": \"free\"\n      }\n    }\n  ],\n  \"default_action\": {\n    \"type\": \"free\"\n  }\n}"

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

{
  "success": true,
  "message": "<string>",
  "content": {
    "rules": [
      {
        "condition": {
          "order_total": {
            "gte": 1
          }
        },
        "action": {
          "type": "free"
        }
      }
    ],
    "default_action": {
      "type": "free"
    }
  }
}