Attach subscription discount

curl --request POST \
  --url https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "discount_code": "SCRANTON5",
  "duration": "once",
  "notes": "Welcome back offer"
}
'

import requests

url = "https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts"

payload = {
    "discount_code": "SCRANTON5",
    "duration": "once",
    "notes": "Welcome back offer"
}
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({discount_code: 'SCRANTON5', duration: 'once', notes: 'Welcome back offer'})
};

fetch('https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts', 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://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts",
  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([
    'discount_code' => 'SCRANTON5',
    'duration' => 'once',
    'notes' => 'Welcome back offer'
  ]),
  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://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts"

	payload := strings.NewReader("{\n  \"discount_code\": \"SCRANTON5\",\n  \"duration\": \"once\",\n  \"notes\": \"Welcome back offer\"\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://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"discount_code\": \"SCRANTON5\",\n  \"duration\": \"once\",\n  \"notes\": \"Welcome back offer\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/discounts")

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  \"discount_code\": \"SCRANTON5\",\n  \"duration\": \"once\",\n  \"notes\": \"Welcome back offer\"\n}"

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

{
  "subscription_discount": {
    "id": 6254,
    "company_id": 1405,
    "subscription_id": 48213,
    "discount_id": 1977,
    "discount_version_id": 2461,
    "attached_by_member_id": "9c41e7b2-3a5d-4f18-8e6c-2b7d0a9f4c13",
    "attached_by_droplet_installation_id": null,
    "duration": "once",
    "duration_cycles": null,
    "applied_cycles": 0,
    "removed_reason": null,
    "removed_detail": null,
    "attached_via": "manual_member",
    "notes": "Welcome back offer",
    "starts_at": "2026-09-30T15:30:12Z",
    "removed_at": null,
    "created_at": "2026-09-30T15:30:12Z",
    "updated_at": "2026-09-30T15:30:12Z",
    "discount": {
      "id": 1977,
      "code": "SCRANTON5"
    },
    "discount_version": {
      "id": 2461,
      "version_number": 2,
      "code": "SCRANTON5",
      "price_discount_type": "flat",
      "flat_value": 5,
      "percentage_value": null,
      "apply_to_volume": false
    },
    "attached_by": {
      "kind": "member",
      "id": "9c41e7b2-3a5d-4f18-8e6c-2b7d0a9f4c13",
      "label": "Pam Beesly"
    }
  },
  "meta": {
    "request_id": "e3b7d1f9-2a6c-4d85-b1e4-7f2a9c3d5e16",
    "timestamp": "2026-09-30T15:30:12Z"
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>",
  "error": "<string>",
  "error_message": "<string>",
  "errors": "<string>",
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z"
  }
}

{
  "error_message": "<string>",
  "errors": "<string>",
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "code": "<string>",
    "blocked_date": "2026-11-30",
    "blocked_day": 30,
    "allowed_date": "2026-11-28",
    "payment_uuid": "<string>",
    "error_details": [
      {
        "code": "<string>",
        "field": "<string>",
        "payment": "not_attempted",
        "message": "<string>"
      }
    ],
    "coded_recovery": true
  }
}

{
  "error_message": "<string>",
  "errors": "<string>",
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "code": "<string>",
    "blocked_date": "2026-11-30",
    "blocked_day": 30,
    "allowed_date": "2026-11-28",
    "payment_uuid": "<string>",
    "error_details": [
      {
        "code": "<string>",
        "field": "<string>",
        "payment": "not_attempted",
        "message": "<string>"
      }
    ],
    "coded_recovery": true
  }
}