Preview invitation tasks for an invitee

curl --request POST \
  --url https://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "steps": [
    {
      "step_key": "personal_call",
      "enabled": true,
      "due_date": "2026-11-01",
      "assignee_strategy": "invitee_owner",
      "assignee_user_id": 42
    }
  ]
}
'

import requests

url = "https://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-preview"

payload = { "steps": [
        {
            "step_key": "personal_call",
            "enabled": True,
            "due_date": "2026-11-01",
            "assignee_strategy": "invitee_owner",
            "assignee_user_id": 42
        }
    ] }
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({
    steps: [
      {
        step_key: 'personal_call',
        enabled: true,
        due_date: '2026-11-01',
        assignee_strategy: 'invitee_owner',
        assignee_user_id: 42
      }
    ]
  })
};

fetch('https://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-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://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-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([
    'steps' => [
        [
                'step_key' => 'personal_call',
                'enabled' => true,
                'due_date' => '2026-11-01',
                'assignee_strategy' => 'invitee_owner',
                'assignee_user_id' => 42
        ]
    ]
  ]),
  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://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-preview"

	payload := strings.NewReader("{\n  \"steps\": [\n    {\n      \"step_key\": \"personal_call\",\n      \"enabled\": true,\n      \"due_date\": \"2026-11-01\",\n      \"assignee_strategy\": \"invitee_owner\",\n      \"assignee_user_id\": 42\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://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-preview")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"steps\": [\n    {\n      \"step_key\": \"personal_call\",\n      \"enabled\": true,\n      \"due_date\": \"2026-11-01\",\n      \"assignee_strategy\": \"invitee_owner\",\n      \"assignee_user_id\": 42\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gratona.com/v1/admin/events/{eventId}/invitees/{inviteeId}/plan-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  \"steps\": [\n    {\n      \"step_key\": \"personal_call\",\n      \"enabled\": true,\n      \"due_date\": \"2026-11-01\",\n      \"assignee_strategy\": \"invitee_owner\",\n      \"assignee_user_id\": 42\n    }\n  ]\n}"

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

{
  "data": {
    "invitee_id": 42,
    "invitee_version": 1,
    "plan": {
      "materialized": false,
      "id": 42,
      "name": "Personal invitation",
      "revision": 1,
      "lock_version": 1,
      "source_preset_key": "personal_invitation_v1",
      "source_preset_version": 42,
      "definition_hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
      "steps": [
        {
          "id": 42,
          "step_key": "personal_call",
          "position": 42,
          "label": "Personal call",
          "task_title_template": "Call {donor_name} about {event_name}",
          "invitation_method": "phone_call",
          "days_before_event": 28,
          "assignee_strategy": "invitee_owner",
          "assignee_user_id": 42,
          "is_enabled": true
        }
      ]
    },
    "steps": [
      {
        "step_key": "personal_call",
        "label": "Personal call",
        "task_title_template": "Call {donor_name} about {event_name}",
        "invitation_method": "phone_call",
        "days_before_event": 28,
        "due_date": "2026-11-01",
        "assignee_strategy": "invitee_owner",
        "resolved_assignee_user_id": 42,
        "assignee_user_id": 42,
        "enabled": false
      }
    ],
    "new_task_count": 42,
    "existing_task_count": 42,
    "notice": "This creates staff tasks. It does not contact invitees."
  }
}

{
  "message": "Something went wrong. Please try again.",
  "status": "error",
  "error": "invalid_request",
  "code": "DONOR_NOT_FOUND"
}

{
  "message": "Something went wrong. Please try again.",
  "status": "error",
  "error": "invalid_request",
  "code": "DONOR_NOT_FOUND"
}

{
  "message": "Not Found",
  "status": "error"
}

{
  "message": "Version, idempotency, preview or archived-event conflict.",
  "error_code": "event_invitee_conflict",
  "details": {
    "current_version": 42,
    "current_lock_version": 42,
    "current_revision": 42,
    "current_definition_hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
  }
}

{
  "errors": {},
  "status": "error",
  "message": "The given data was invalid."
}