curl --request POST \
  --url https://app.base44.com/api/apps/{app_id}/external-auth/initiate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "integration_type": "googlecalendar",
  "scopes": [
    "https://www.googleapis.com/auth/calendar.readonly"
  ],
  "force_reconnect": false,
  "connection_config": {
    "subdomain": "acme-prod"
  },
  "connector_id": "6820f3a4e7b91d003c45a1f9",
  "notify_chat_on_success": false
}
'

import requests

url = "https://app.base44.com/api/apps/{app_id}/external-auth/initiate"

payload = {
    "integration_type": "googlecalendar",
    "scopes": ["https://www.googleapis.com/auth/calendar.readonly"],
    "force_reconnect": False,
    "connection_config": { "subdomain": "acme-prod" },
    "connector_id": "6820f3a4e7b91d003c45a1f9",
    "notify_chat_on_success": False
}
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({
    integration_type: 'googlecalendar',
    scopes: ['https://www.googleapis.com/auth/calendar.readonly'],
    force_reconnect: false,
    connection_config: {subdomain: 'acme-prod'},
    connector_id: '6820f3a4e7b91d003c45a1f9',
    notify_chat_on_success: false
  })
};

fetch('https://app.base44.com/api/apps/{app_id}/external-auth/initiate', 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.base44.com/api/apps/{app_id}/external-auth/initiate",
  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([
    'integration_type' => 'googlecalendar',
    'scopes' => [
        'https://www.googleapis.com/auth/calendar.readonly'
    ],
    'force_reconnect' => false,
    'connection_config' => [
        'subdomain' => 'acme-prod'
    ],
    'connector_id' => '6820f3a4e7b91d003c45a1f9',
    'notify_chat_on_success' => false
  ]),
  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.base44.com/api/apps/{app_id}/external-auth/initiate"

	payload := strings.NewReader("{\n  \"integration_type\": \"googlecalendar\",\n  \"scopes\": [\n    \"https://www.googleapis.com/auth/calendar.readonly\"\n  ],\n  \"force_reconnect\": false,\n  \"connection_config\": {\n    \"subdomain\": \"acme-prod\"\n  },\n  \"connector_id\": \"6820f3a4e7b91d003c45a1f9\",\n  \"notify_chat_on_success\": false\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.base44.com/api/apps/{app_id}/external-auth/initiate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"integration_type\": \"googlecalendar\",\n  \"scopes\": [\n    \"https://www.googleapis.com/auth/calendar.readonly\"\n  ],\n  \"force_reconnect\": false,\n  \"connection_config\": {\n    \"subdomain\": \"acme-prod\"\n  },\n  \"connector_id\": \"6820f3a4e7b91d003c45a1f9\",\n  \"notify_chat_on_success\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.base44.com/api/apps/{app_id}/external-auth/initiate")

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  \"integration_type\": \"googlecalendar\",\n  \"scopes\": [\n    \"https://www.googleapis.com/auth/calendar.readonly\"\n  ],\n  \"force_reconnect\": false,\n  \"connection_config\": {\n    \"subdomain\": \"acme-prod\"\n  },\n  \"connector_id\": \"6820f3a4e7b91d003c45a1f9\",\n  \"notify_chat_on_success\": false\n}"

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

{
  "redirect_url": "https://app.base44.com/api/external-auth/connect/3f9c2a7e5b8d4c1fa6e0d2b7c9a1e4f3",
  "connection_id": "base44_6820f3a4e7b91d003c45a1f7",
  "integration_type": "googlecalendar",
  "already_authorized": false,
  "error": "different_user",
  "error_message": "Integration googlecalendar is already authorized by a different user for this app."
}