Preview an event communication

curl --request POST \
  --url https://api.gratona.com/v1/admin/events/{eventId}/communications/preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "Example",
  "trigger": "Example",
  "channel": "email",
  "status": "draft",
  "segment": "Example",
  "subject": "Example",
  "body": "Example",
  "send_at": "2026-12-20T18:00:00Z",
  "sent_at": "2026-12-20T18:00:00Z",
  "metadata": {},
  "schedule": {
    "kind": "instant",
    "localDatetime": "2026-12-19T18:00:00",
    "timezone": "Africa/Kampala",
    "offsetMinutes": 180,
    "utcAt": "2026-12-19T15:00:00Z",
    "source": "calendar",
    "recommendationId": "recommendation-42"
  }
}
'

import requests

url = "https://api.gratona.com/v1/admin/events/{eventId}/communications/preview"

payload = {
    "type": "Example",
    "trigger": "Example",
    "channel": "email",
    "status": "draft",
    "segment": "Example",
    "subject": "Example",
    "body": "Example",
    "send_at": "2026-12-20T18:00:00Z",
    "sent_at": "2026-12-20T18:00:00Z",
    "metadata": {},
    "schedule": {
        "kind": "instant",
        "localDatetime": "2026-12-19T18:00:00",
        "timezone": "Africa/Kampala",
        "offsetMinutes": 180,
        "utcAt": "2026-12-19T15:00:00Z",
        "source": "calendar",
        "recommendationId": "recommendation-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({
    type: 'Example',
    trigger: 'Example',
    channel: 'email',
    status: 'draft',
    segment: 'Example',
    subject: 'Example',
    body: JSON.stringify('Example'),
    send_at: '2026-12-20T18:00:00Z',
    sent_at: '2026-12-20T18:00:00Z',
    metadata: {},
    schedule: {
      kind: 'instant',
      localDatetime: '2026-12-19T18:00:00',
      timezone: 'Africa/Kampala',
      offsetMinutes: 180,
      utcAt: '2026-12-19T15:00:00Z',
      source: 'calendar',
      recommendationId: 'recommendation-42'
    }
  })
};

fetch('https://api.gratona.com/v1/admin/events/{eventId}/communications/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}/communications/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([
    'type' => 'Example',
    'trigger' => 'Example',
    'channel' => 'email',
    'status' => 'draft',
    'segment' => 'Example',
    'subject' => 'Example',
    'body' => 'Example',
    'send_at' => '2026-12-20T18:00:00Z',
    'sent_at' => '2026-12-20T18:00:00Z',
    'metadata' => [
        
    ],
    'schedule' => [
        'kind' => 'instant',
        'localDatetime' => '2026-12-19T18:00:00',
        'timezone' => 'Africa/Kampala',
        'offsetMinutes' => 180,
        'utcAt' => '2026-12-19T15:00:00Z',
        'source' => 'calendar',
        'recommendationId' => 'recommendation-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}/communications/preview"

	payload := strings.NewReader("{\n  \"type\": \"Example\",\n  \"trigger\": \"Example\",\n  \"channel\": \"email\",\n  \"status\": \"draft\",\n  \"segment\": \"Example\",\n  \"subject\": \"Example\",\n  \"body\": \"Example\",\n  \"send_at\": \"2026-12-20T18:00:00Z\",\n  \"sent_at\": \"2026-12-20T18:00:00Z\",\n  \"metadata\": {},\n  \"schedule\": {\n    \"kind\": \"instant\",\n    \"localDatetime\": \"2026-12-19T18:00:00\",\n    \"timezone\": \"Africa/Kampala\",\n    \"offsetMinutes\": 180,\n    \"utcAt\": \"2026-12-19T15:00:00Z\",\n    \"source\": \"calendar\",\n    \"recommendationId\": \"recommendation-42\"\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}/communications/preview")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"type\": \"Example\",\n  \"trigger\": \"Example\",\n  \"channel\": \"email\",\n  \"status\": \"draft\",\n  \"segment\": \"Example\",\n  \"subject\": \"Example\",\n  \"body\": \"Example\",\n  \"send_at\": \"2026-12-20T18:00:00Z\",\n  \"sent_at\": \"2026-12-20T18:00:00Z\",\n  \"metadata\": {},\n  \"schedule\": {\n    \"kind\": \"instant\",\n    \"localDatetime\": \"2026-12-19T18:00:00\",\n    \"timezone\": \"Africa/Kampala\",\n    \"offsetMinutes\": 180,\n    \"utcAt\": \"2026-12-19T15:00:00Z\",\n    \"source\": \"calendar\",\n    \"recommendationId\": \"recommendation-42\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gratona.com/v1/admin/events/{eventId}/communications/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  \"type\": \"Example\",\n  \"trigger\": \"Example\",\n  \"channel\": \"email\",\n  \"status\": \"draft\",\n  \"segment\": \"Example\",\n  \"subject\": \"Example\",\n  \"body\": \"Example\",\n  \"send_at\": \"2026-12-20T18:00:00Z\",\n  \"sent_at\": \"2026-12-20T18:00:00Z\",\n  \"metadata\": {},\n  \"schedule\": {\n    \"kind\": \"instant\",\n    \"localDatetime\": \"2026-12-19T18:00:00\",\n    \"timezone\": \"Africa/Kampala\",\n    \"offsetMinutes\": 180,\n    \"utcAt\": \"2026-12-19T15:00:00Z\",\n    \"source\": \"calendar\",\n    \"recommendationId\": \"recommendation-42\"\n  }\n}"

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

{
  "data": {
    "selected_count": 42,
    "audience_count": 42,
    "suppressed_count": 42,
    "excluded_count": 42,
    "channel": "email",
    "sender": {
      "name": "Example Foundation",
      "address": "hello@example.org"
    },
    "template": {
      "type": "reminder",
      "subject": "Reminder: [event_name]"
    },
    "schedule": {
      "status": "draft",
      "send_at": "2026-10-20T12:00:00Z",
      "intent": {
        "kind": "instant",
        "localDatetime": "2026-12-19T18:00:00",
        "timezone": "Africa/Kampala",
        "offsetMinutes": 180,
        "utcAt": "2026-12-19T15:00:00Z",
        "source": "calendar",
        "recommendationId": "recommendation-42"
      }
    },
    "address_release_effect": "Only the public location will be included.",
    "communications_hold": false
  }
}

{
  "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"
}

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

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