curl --request POST \
  --url https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "document": {
      "schemaVersion": 2,
      "supportedSourceKinds": [],
      "inputSchema": {
        "type": "object",
        "properties": {},
        "additionalProperties": false,
        "required": [
          "<string>"
        ]
      },
      "stages": [
        {
          "key": "<string>",
          "displayName": "<string>",
          "route": {
            "kind": "requester_manager"
          },
          "decisionPolicy": {
            "denialPolicy": "deny_veto",
            "approvalsRequired": 2
          },
          "timeout": {
            "expiresAfterSeconds": 1296000,
            "reminderOffsetsSeconds": [
              2
            ]
          }
        }
      ]
    },
    "scenario": {
      "requestedByPrincipalId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "requestedForPrincipalId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "teamId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "input": {}
    }
  }
}
'

import requests

url = "https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview"

payload = { "data": {
        "document": {
            "schemaVersion": 2,
            "supportedSourceKinds": [],
            "inputSchema": {
                "type": "object",
                "properties": {},
                "additionalProperties": False,
                "required": ["<string>"]
            },
            "stages": [
                {
                    "key": "<string>",
                    "displayName": "<string>",
                    "route": { "kind": "requester_manager" },
                    "decisionPolicy": {
                        "denialPolicy": "deny_veto",
                        "approvalsRequired": 2
                    },
                    "timeout": {
                        "expiresAfterSeconds": 1296000,
                        "reminderOffsetsSeconds": [2]
                    }
                }
            ]
        },
        "scenario": {
            "requestedByPrincipalId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "requestedForPrincipalId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "teamId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "input": {}
        }
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    data: {
      document: {
        schemaVersion: 2,
        supportedSourceKinds: [],
        inputSchema: {
          type: 'object',
          properties: {},
          additionalProperties: false,
          required: ['<string>']
        },
        stages: [
          {
            key: '<string>',
            displayName: '<string>',
            route: {kind: 'requester_manager'},
            decisionPolicy: {denialPolicy: 'deny_veto', approvalsRequired: 2},
            timeout: {expiresAfterSeconds: 1296000, reminderOffsetsSeconds: [2]}
          }
        ]
      },
      scenario: {
        requestedByPrincipalId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        requestedForPrincipalId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        teamId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        input: {}
      }
    }
  })
};

fetch('https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'data' => [
        'document' => [
                'schemaVersion' => 2,
                'supportedSourceKinds' => [
                                
                ],
                'inputSchema' => [
                                'type' => 'object',
                                'properties' => [
                                                                
                                ],
                                'additionalProperties' => false,
                                'required' => [
                                                                '<string>'
                                ]
                ],
                'stages' => [
                                [
                                                                'key' => '<string>',
                                                                'displayName' => '<string>',
                                                                'route' => [
                                                                                                                                'kind' => 'requester_manager'
                                                                ],
                                                                'decisionPolicy' => [
                                                                                                                                'denialPolicy' => 'deny_veto',
                                                                                                                                'approvalsRequired' => 2
                                                                ],
                                                                'timeout' => [
                                                                                                                                'expiresAfterSeconds' => 1296000,
                                                                                                                                'reminderOffsetsSeconds' => [
                                                                                                                                                                                                                                                                2
                                                                                                                                ]
                                                                ]
                                ]
                ]
        ],
        'scenario' => [
                'requestedByPrincipalId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                'requestedForPrincipalId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                'teamId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                'input' => [
                                
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview"

	payload := strings.NewReader("{\n  \"data\": {\n    \"document\": {\n      \"schemaVersion\": 2,\n      \"supportedSourceKinds\": [],\n      \"inputSchema\": {\n        \"type\": \"object\",\n        \"properties\": {},\n        \"additionalProperties\": false,\n        \"required\": [\n          \"<string>\"\n        ]\n      },\n      \"stages\": [\n        {\n          \"key\": \"<string>\",\n          \"displayName\": \"<string>\",\n          \"route\": {\n            \"kind\": \"requester_manager\"\n          },\n          \"decisionPolicy\": {\n            \"denialPolicy\": \"deny_veto\",\n            \"approvalsRequired\": 2\n          },\n          \"timeout\": {\n            \"expiresAfterSeconds\": 1296000,\n            \"reminderOffsetsSeconds\": [\n              2\n            ]\n          }\n        }\n      ]\n    },\n    \"scenario\": {\n      \"requestedByPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"requestedForPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"teamId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"input\": {}\n    }\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))

}

HttpResponse<String> response = Unirest.post("https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"document\": {\n      \"schemaVersion\": 2,\n      \"supportedSourceKinds\": [],\n      \"inputSchema\": {\n        \"type\": \"object\",\n        \"properties\": {},\n        \"additionalProperties\": false,\n        \"required\": [\n          \"<string>\"\n        ]\n      },\n      \"stages\": [\n        {\n          \"key\": \"<string>\",\n          \"displayName\": \"<string>\",\n          \"route\": {\n            \"kind\": \"requester_manager\"\n          },\n          \"decisionPolicy\": {\n            \"denialPolicy\": \"deny_veto\",\n            \"approvalsRequired\": 2\n          },\n          \"timeout\": {\n            \"expiresAfterSeconds\": 1296000,\n            \"reminderOffsetsSeconds\": [\n              2\n            ]\n          }\n        }\n      ]\n    },\n    \"scenario\": {\n      \"requestedByPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"requestedForPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"teamId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"input\": {}\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.letsflow.ai/v1/approval_procedure_definitions/actions/preview")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"document\": {\n      \"schemaVersion\": 2,\n      \"supportedSourceKinds\": [],\n      \"inputSchema\": {\n        \"type\": \"object\",\n        \"properties\": {},\n        \"additionalProperties\": false,\n        \"required\": [\n          \"<string>\"\n        ]\n      },\n      \"stages\": [\n        {\n          \"key\": \"<string>\",\n          \"displayName\": \"<string>\",\n          \"route\": {\n            \"kind\": \"requester_manager\"\n          },\n          \"decisionPolicy\": {\n            \"denialPolicy\": \"deny_veto\",\n            \"approvalsRequired\": 2\n          },\n          \"timeout\": {\n            \"expiresAfterSeconds\": 1296000,\n            \"reminderOffsetsSeconds\": [\n              2\n            ]\n          }\n        }\n      ]\n    },\n    \"scenario\": {\n      \"requestedByPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"requestedForPrincipalId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"teamId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"input\": {}\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "data": {
    "stages": [
      {
        "key": "<string>",
        "order": 2,
        "approvers": [
          {
            "principal_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "display_name": "<string>",
            "primary_email": "<string>",
            "provenance": {}
          }
        ],
        "audience": {
          "size": 1,
          "limit": 2,
          "warning": "<string>"
        },
        "policy": {
          "decision_policy": "any_one",
          "approvals_required": 2,
          "denial_policy": "deny_veto",
          "self_approval_rule": "forbid"
        }
      }
    ]
  },
  "meta": {
    "request_id": "<string>",
    "correlation_id": "<string>",
    "operation": "<string>",
    "resource": "<string>"
  }
}

{
  "type": "https://app.letsflow.ai/problems/access-grant-not-found",
  "title": "<string>",
  "status": 123,
  "code": "access_grant_admin_extension_required",
  "detail": "<string>",
  "instance": "<string>",
  "request_id": "<string>",
  "correlation_id": "<string>",
  "retryable": true,
  "auth_failure_reason": "<string>",
  "availability_reason": "capability_disabled",
  "re_auth_required": true,
  "violations": [
    {
      "field": "<string>",
      "message": "<string>",
      "capability": "<string>",
      "details": {}
    }
  ],
  "diagnostics": [
    {
      "code": "<string>",
      "severity": "info",
      "message": "<string>",
      "fixHint": "<string>",
      "location": {
        "file": "<string>",
        "line": 2,
        "column": 2,
        "stepId": "<string>"
      }
    }
  ]
}