curl --request POST \
  --url https://{appId}.api-{region}.cometchat.io/v3/data_import/messages \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '{}'

import requests

url = "https://{appId}.api-{region}.cometchat.io/v3/data_import/messages"

payload = {}
headers = {
    "apikey": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {apikey: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({})
};

fetch('https://{appId}.api-{region}.cometchat.io/v3/data_import/messages', 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://{appId}.api-{region}.cometchat.io/v3/data_import/messages",
  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([
    
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "apikey: <api-key>"
  ],
]);

$response = curl_exec($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://{appId}.api-{region}.cometchat.io/v3/data_import/messages"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("apikey", "<api-key>")
	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://{appId}.api-{region}.cometchat.io/v3/data_import/messages")
  .header("apikey", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{appId}.api-{region}.cometchat.io/v3/data_import/messages")

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

request = Net::HTTP::Post.new(url)
request["apikey"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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

{
  "data": {
    "3117": {
      "success": true,
      "data": {
        "id": "1029",
        "muid": "3117",
        "conversationId": "r123_user_s12",
        "sender": "s12",
        "receiverType": "user",
        "receiver": "r123",
        "category": "message",
        "type": "text",
        "data": {
          "text": "Hi there,",
          "attachments": [
            {
              "name": "cometchat-uid-1.webp",
              "extension": "webp",
              "size": "350.2",
              "mimeType": "image/webp",
              "url": "https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-1.webp"
            }
          ],
          "metad2ata": {
            "key": "value"
          },
          "custodata": {
            "key": "value"
          },
          "entities": {
            "sender": {
              "entity": {
                "uid": "s12",
                "name": "user1",
                "avatar": "https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-1.webp",
                "metadata": {
                  "key": "value"
                },
                "status": "offline",
                "role": "default",
                "createdAt": 1674228536,
                "updatedAt": 1674232131
              },
              "entityType": "user"
            },
            "receiver": {
              "entity": {
                "uid": "r123",
                "name": "Andrew Joseph",
                "avatar": "https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-1.webp",
                "metadata": {
                  "key": "value"
                },
                "status": "offline",
                "role": "default",
                "createdAt": 1674228536,
                "updatedAt": 1674232131,
                "conversationId": "r123_user_s12"
              },
              "entityType": "user"
            }
          }
        },
        "sentAt": 1674104348,
        "deliveredAt": 1674224684,
        "readAt": 1674224684,
        "updatedAt": 1674104348,
        "tags": [
          "tag1"
        ]
      }
    }
  }
}