curl --request POST \
  --url https://flowker.sandbox.lerian.net/v1/workflows/preview-request \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "node": {
    "body": {
      "amount": "${body.amount}"
    },
    "executorId": "http.post-v1-pay",
    "method": "POST",
    "path": "/v1/pay",
    "providerConfigId": "018f3e2a-1c4d-7b9e-a1b2-c3d4e5f6c4d5"
  },
  "providerConfig": {
    "config": {
      "base_url": "https://api.example.com"
    },
    "providerId": "http"
  },
  "sampleInput": {
    "amount": 150,
    "currency": "BRL"
  }
}
'

package main

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

func main() {

	url := "https://flowker.sandbox.lerian.net/v1/workflows/preview-request"

	payload := strings.NewReader("{\n  \"node\": {\n    \"body\": {\n      \"amount\": \"${body.amount}\"\n    },\n    \"executorId\": \"http.post-v1-pay\",\n    \"method\": \"POST\",\n    \"path\": \"/v1/pay\",\n    \"providerConfigId\": \"018f3e2a-1c4d-7b9e-a1b2-c3d4e5f6c4d5\"\n  },\n  \"providerConfig\": {\n    \"config\": {\n      \"base_url\": \"https://api.example.com\"\n    },\n    \"providerId\": \"http\"\n  },\n  \"sampleInput\": {\n    \"amount\": 150,\n    \"currency\": \"BRL\"\n  }\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))

}

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    node: {
      body: JSON.stringify({amount: '${body.amount}'}),
      executorId: 'http.post-v1-pay',
      method: 'POST',
      path: '/v1/pay',
      providerConfigId: '018f3e2a-1c4d-7b9e-a1b2-c3d4e5f6c4d5'
    },
    providerConfig: {config: {base_url: 'https://api.example.com'}, providerId: 'http'},
    sampleInput: {amount: 150, currency: 'BRL'}
  })
};

fetch('https://flowker.sandbox.lerian.net/v1/workflows/preview-request', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://flowker.sandbox.lerian.net/v1/workflows/preview-request"

payload = {
    "node": {
        "body": { "amount": "${body.amount}" },
        "executorId": "http.post-v1-pay",
        "method": "POST",
        "path": "/v1/pay",
        "providerConfigId": "018f3e2a-1c4d-7b9e-a1b2-c3d4e5f6c4d5"
    },
    "providerConfig": {
        "config": { "base_url": "https://api.example.com" },
        "providerId": "http"
    },
    "sampleInput": {
        "amount": 150,
        "currency": "BRL"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "body": "{\"amount\":150.00,\"currency\":\"BRL\"}",
  "curl": "<string>",
  "headers": {},
  "method": "POST",
  "unresolved": [
    "<string>"
  ],
  "url": "https://api.example.com/v1/pay"
}

{
  "code": "FLK-0001",
  "detail": "name is a required field",
  "errors": [
    {
      "location": "body.nodes",
      "message": "expected array length >= 1",
      "value": "<unknown>"
    }
  ],
  "instance": "/v1/workflows",
  "status": 400,
  "title": "Bad Request",
  "type": "https://errors.lerian.studio/v1/FLK-0001"
}