curl --request POST \
  --url https://api.renaiss.xyz/v2/gacha/buyback/request \
  --header 'Content-Type: application/json' \
  --header 'x-builder-api-key: <api-key>' \
  --data '
{
  "buyerWalletAddress": "<string>",
  "cardPackId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "buybackAuth": {
    "buybackIds": [
      "<string>"
    ],
    "token": "<string>",
    "amount": "<string>"
  },
  "userSignature": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {'x-builder-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    buyerWalletAddress: '<string>',
    cardPackId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    buybackAuth: {buybackIds: ['<string>'], token: '<string>', amount: '<string>'},
    userSignature: '<string>'
  })
};

fetch('https://api.renaiss.xyz/v2/gacha/buyback/request', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.renaiss.xyz/v2/gacha/buyback/request"

payload = {
    "buyerWalletAddress": "<string>",
    "cardPackId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "buybackAuth": {
        "buybackIds": ["<string>"],
        "token": "<string>",
        "amount": "<string>"
    },
    "userSignature": "<string>"
}
headers = {
    "x-builder-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "requestId": "b81d0f7e-2c4a-4d6b-8e13-5a9c7d1f3b20",
  "buyerWalletAddress": "0x4f2a9c1e7b3d58a60c9e1f2b3d4a5c6e7f8091a2",
  "cardPackId": "3f6c2a1e-8b4d-4c7a-9e21-5d0b7a6c4f13",
  "settlementIds": [
    "0x2222222222222222222222222222222222222222222222222222222222222222"
  ],
  "status": "PENDING",
  "txHash": null,
  "totalAmountInUsdt": null,
  "itemCount": null,
  "error": null
}

Malformed JSON in request body

{
  "error": "Required authentication credential is missing",
  "code": "API_AUTH_MISSING_CREDENTIAL"
}

{
  "error": "Invalid wallet action proof",
  "code": "API_AUTH_INVALID_ACTION"
}

{
  "error": "One or more builder draws were not found",
  "code": "EOA_PURCHASE_REJECTED"
}

{
  "error": "Authentication rate limit exceeded",
  "code": "API_AUTH_RATE_LIMITED"
}

{
  "error": "Internal server error",
  "code": "FUNCTION_ERROR"
}