curl --request PUT \
  --url https://ledger.sandbox.lerian.net/v1/organizations/{organization_id}/ledgers/{ledger_id}/asset-rates \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "from": "USD",
  "metadata": {},
  "rate": 100,
  "to": "BRL",
  "externalId": "00000000-0000-0000-0000-000000000000",
  "scale": 2,
  "source": "External System",
  "ttl": 3600
}
'

package main

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

func main() {

	url := "https://ledger.sandbox.lerian.net/v1/organizations/{organization_id}/ledgers/{ledger_id}/asset-rates"

	payload := strings.NewReader("{\n  \"from\": \"USD\",\n  \"metadata\": {},\n  \"rate\": 100,\n  \"to\": \"BRL\",\n  \"externalId\": \"00000000-0000-0000-0000-000000000000\",\n  \"scale\": 2,\n  \"source\": \"External System\",\n  \"ttl\": 3600\n}")

	req, _ := http.NewRequest("PUT", 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: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    from: 'USD',
    metadata: {},
    rate: 100,
    to: 'BRL',
    externalId: '00000000-0000-0000-0000-000000000000',
    scale: 2,
    source: 'External System',
    ttl: 3600
  })
};

fetch('https://ledger.sandbox.lerian.net/v1/organizations/{organization_id}/ledgers/{ledger_id}/asset-rates', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://ledger.sandbox.lerian.net/v1/organizations/{organization_id}/ledgers/{ledger_id}/asset-rates"

payload = {
    "from": "USD",
    "metadata": {},
    "rate": 100,
    "to": "BRL",
    "externalId": "00000000-0000-0000-0000-000000000000",
    "scale": 2,
    "source": "External System",
    "ttl": 3600
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "createdAt": "2021-01-01T00:00:00Z",
  "externalId": "00000000-0000-0000-0000-000000000000",
  "from": "USD",
  "id": "00000000-0000-0000-0000-000000000000",
  "ledgerId": "00000000-0000-0000-0000-000000000000",
  "organizationId": "00000000-0000-0000-0000-000000000000",
  "rate": 100,
  "scale": 2,
  "source": "External System",
  "to": "BRL",
  "ttl": 3600,
  "updatedAt": "2021-01-01T00:00:00Z",
  "metadata": {}
}

{
  "code": "0065",
  "message": "<string>",
  "title": "Invalid Path Parameter",
  "entityType": "Account",
  "fields": {}
}

{
  "code": "0065",
  "message": "<string>",
  "title": "Invalid Path Parameter",
  "entityType": "Account",
  "fields": {}
}

{
  "code": "0065",
  "message": "<string>",
  "title": "Invalid Path Parameter",
  "entityType": "Account",
  "fields": {}
}