🚨 Need Help with FluentCart API — Creating an ORDER (JSON request struggle)🚨

Hey everyone 👋
I’m stuck on what should be a simple thing, but it’s driving me a bit crazy, so I’m turning to the community 🙏

🧩 Context

I’m trying to create an ORDER via the FluentCart REST API, following the official documentation:
👉 https://dev.fluentcart.com/restapi/operations/orders/create-order.html

✅ The route is correct
✅ Headers are correct (auth, content-type, etc.)
❌ I’m blocked on the JSON payload, especially around required IDs

💳 My Setup

• I’m using an external payment system (GoCardless)

• Every successful payment triggers a webhook

• The webhook sends data like:

  • customer email
  • customer name
  • amount
  • payment reference, etc.

• I also include the FluentCart customer ID in the webhook (requiered)

👉 The goal is simple (in theory):
When a payment succeeds → create an Order in FluentCart via API

🔥 The Real Problem

My main difficulty is the JSON request body:

• Some items IDs are truly mandatory to create an order, but how to provide then ? Etc exemple "post_id": 7529088,
  "variation_id": 0,
  "object_id": 59,

The documentation explains the fields, but I’m missing a working, practical JSON example for this kind of action.

🙋 What I’m Looking For

• A real example of a valid JSON payload that successfully creates an order

• Clarification on:

  • required vs optional IDs
  • how FluentCart expects orders created outside its own checkout

• Any gotchas or “aha moments” you ran into doing this

🧠 If you’ve already:

• created orders via API only
• fought with this JSON and won 😄

👉 Your help would be massively appreciated.

Thanks in advance — and I hope this thread helps others too 🙌
Happy to share my payload / errors if needed!