curl --request PATCH \
  --url https://ledger.sandbox.lerian.net/v2/organizations/{organization_id}/holders/{holder_id}/instruments/{instrument_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "bankingDetails": {
    "account": "123450",
    "bankId": "12345",
    "branch": "0001",
    "closingDate": "2025-12-31",
    "countryCode": "US",
    "iban": "US12345678901234567890",
    "openingDate": "2025-01-01",
    "type": "CACC"
  },
  "metadata": {},
  "regulatoryFields": {
    "accountType": "DEPOSIT",
    "participantDocument": "12345678912345"
  },
  "relatedParties": [
    {
      "document": "12345678900",
      "name": "John Smith",
      "role": "PRIMARY_HOLDER",
      "startDate": "2025-01-01",
      "endDate": "2026-01-01",
      "id": "00000000-0000-0000-0000-000000000000"
    }
  ]
}
'

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://ledger.sandbox.lerian.net/v2/organizations/{organization_id}/holders/{holder_id}/instruments/{instrument_id}"

	payload := strings.NewReader("{\n  \"bankingDetails\": {\n    \"account\": \"123450\",\n    \"bankId\": \"12345\",\n    \"branch\": \"0001\",\n    \"closingDate\": \"2025-12-31\",\n    \"countryCode\": \"US\",\n    \"iban\": \"US12345678901234567890\",\n    \"openingDate\": \"2025-01-01\",\n    \"type\": \"CACC\"\n  },\n  \"metadata\": {},\n  \"regulatoryFields\": {\n    \"accountType\": \"DEPOSIT\",\n    \"participantDocument\": \"12345678912345\"\n  },\n  \"relatedParties\": [\n    {\n      \"document\": \"12345678900\",\n      \"name\": \"John Smith\",\n      \"role\": \"PRIMARY_HOLDER\",\n      \"startDate\": \"2025-01-01\",\n      \"endDate\": \"2026-01-01\",\n      \"id\": \"00000000-0000-0000-0000-000000000000\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("PATCH", 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))

}

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    bankingDetails: {
      account: '123450',
      bankId: '12345',
      branch: '0001',
      closingDate: '2025-12-31',
      countryCode: 'US',
      iban: 'US12345678901234567890',
      openingDate: '2025-01-01',
      type: 'CACC'
    },
    metadata: {},
    regulatoryFields: {accountType: 'DEPOSIT', participantDocument: '12345678912345'},
    relatedParties: [
      {
        document: '12345678900',
        name: 'John Smith',
        role: 'PRIMARY_HOLDER',
        startDate: '2025-01-01',
        endDate: '2026-01-01',
        id: '00000000-0000-0000-0000-000000000000'
      }
    ]
  })
};

fetch('https://ledger.sandbox.lerian.net/v2/organizations/{organization_id}/holders/{holder_id}/instruments/{instrument_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://ledger.sandbox.lerian.net/v2/organizations/{organization_id}/holders/{holder_id}/instruments/{instrument_id}"

payload = {
    "bankingDetails": {
        "account": "123450",
        "bankId": "12345",
        "branch": "0001",
        "closingDate": "2025-12-31",
        "countryCode": "US",
        "iban": "US12345678901234567890",
        "openingDate": "2025-01-01",
        "type": "CACC"
    },
    "metadata": {},
    "regulatoryFields": {
        "accountType": "DEPOSIT",
        "participantDocument": "12345678912345"
    },
    "relatedParties": [
        {
            "document": "12345678900",
            "name": "John Smith",
            "role": "PRIMARY_HOLDER",
            "startDate": "2025-01-01",
            "endDate": "2026-01-01",
            "id": "00000000-0000-0000-0000-000000000000"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "accountId": "00000000-0000-0000-0000-000000000000",
  "createdAt": "2025-01-01T00:00:00Z",
  "deletedAt": "2025-01-01T00:00:00Z",
  "holderId": "00000000-0000-0000-0000-000000000000",
  "ledgerId": "00000000-0000-0000-0000-000000000000",
  "updatedAt": "2025-01-01T00:00:00Z",
  "bankingDetails": {
    "account": "123450",
    "bankId": "12345",
    "branch": "0001",
    "closingDate": "2025-12-31",
    "countryCode": "US",
    "iban": "US12345678901234567890",
    "openingDate": "2025-01-01",
    "type": "CACC"
  },
  "document": "12345678900",
  "id": "00000000-0000-0000-0000-000000000000",
  "metadata": {},
  "regulatoryFields": {
    "accountType": "DEPOSIT",
    "participantDocument": "12345678912345"
  },
  "relatedParties": [
    {
      "document": "12345678900",
      "name": "John Smith",
      "role": "PRIMARY_HOLDER",
      "startDate": "2025-01-01",
      "endDate": "2026-01-01",
      "id": "00000000-0000-0000-0000-000000000000"
    }
  ],
  "type": "NATURAL_PERSON"
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}