curl --request POST \
  --url https://{workspace}.spreesuite.com/billspree/connections/get-connections \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "method": "Retrieve",
  "action": "Retrieve Subscriptions",
  "apiVersion": "v2",
  "serviceCode": "DEMO-001",
  "connectionNumber": null,
  "partyID": null,
  "subscriptionType": null,
  "status": null,
  "filters": null,
  "metaData": null,
  "page": null
}
'

import requests

url = "https://{workspace}.spreesuite.com/billspree/connections/get-connections"

payload = {
    "method": "Retrieve",
    "action": "Retrieve Subscriptions",
    "apiVersion": "v2",
    "serviceCode": "DEMO-001",
    "connectionNumber": None,
    "partyID": None,
    "subscriptionType": None,
    "status": None,
    "filters": None,
    "metaData": None,
    "page": None
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    method: 'Retrieve',
    action: 'Retrieve Subscriptions',
    apiVersion: 'v2',
    serviceCode: 'DEMO-001',
    connectionNumber: null,
    partyID: null,
    subscriptionType: null,
    status: null,
    filters: null,
    metaData: null,
    page: null
  })
};

fetch('https://{workspace}.spreesuite.com/billspree/connections/get-connections', 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://{workspace}.spreesuite.com/billspree/connections/get-connections",
  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([
    'method' => 'Retrieve',
    'action' => 'Retrieve Subscriptions',
    'apiVersion' => 'v2',
    'serviceCode' => 'DEMO-001',
    'connectionNumber' => null,
    'partyID' => null,
    'subscriptionType' => null,
    'status' => null,
    'filters' => null,
    'metaData' => null,
    'page' => null
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://{workspace}.spreesuite.com/billspree/connections/get-connections"

	payload := strings.NewReader("{\n  \"method\": \"Retrieve\",\n  \"action\": \"Retrieve Subscriptions\",\n  \"apiVersion\": \"v2\",\n  \"serviceCode\": \"DEMO-001\",\n  \"connectionNumber\": null,\n  \"partyID\": null,\n  \"subscriptionType\": null,\n  \"status\": null,\n  \"filters\": null,\n  \"metaData\": null,\n  \"page\": null\n}")

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

	req.Header.Add("Authorization", "<api-key>")
	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://{workspace}.spreesuite.com/billspree/connections/get-connections")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"method\": \"Retrieve\",\n  \"action\": \"Retrieve Subscriptions\",\n  \"apiVersion\": \"v2\",\n  \"serviceCode\": \"DEMO-001\",\n  \"connectionNumber\": null,\n  \"partyID\": null,\n  \"subscriptionType\": null,\n  \"status\": null,\n  \"filters\": null,\n  \"metaData\": null,\n  \"page\": null\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{workspace}.spreesuite.com/billspree/connections/get-connections")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"method\": \"Retrieve\",\n  \"action\": \"Retrieve Subscriptions\",\n  \"apiVersion\": \"v2\",\n  \"serviceCode\": \"DEMO-001\",\n  \"connectionNumber\": null,\n  \"partyID\": null,\n  \"subscriptionType\": null,\n  \"status\": null,\n  \"filters\": null,\n  \"metaData\": null,\n  \"page\": null\n}"

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

{
  "success": true,
  "statusCode": 200,
  "message": "Request Succeeded.",
  "error": null,
  "data": {
    "connections": [
      {
        "id": 1,
        "connectionNumber": "CONN-001",
        "connectionRefNo": "REF-001",
        "serviceCode": "DEMO-001",
        "tariffCode": "DemoPlan",
        "batchCode": null,
        "status": "Active",
        "chargingType": "Postpaid",
        "postType": "Post Subscription",
        "connectionDate": "01012026",
        "description": null,
        "paymentMethod": null,
        "ts": 1,
        "partyID": 5,
        "partyName": "John Doe",
        "connectionInputs": [
          {
            "name": "MeterNo",
            "value": "12345"
          }
        ],
        "meteredConnectionInputs": [],
        "unmeteredInputs": [],
        "meters": [],
        "accounts": [
          {
            "title": "Monthly Charge",
            "balance": 0
          }
        ],
        "address": {
          "title": null,
          "shopNo": null,
          "buildingNo": null,
          "buildingName": null,
          "street": null,
          "block": null,
          "society": null,
          "city": null,
          "countryId": null
        },
        "users": [],
        "addOns": [],
        "variants": [],
        "bills": [],
        "transfers": []
      }
    ]
  }
}