curl --request POST \
  --url https://api.whop.com/api/v1/channels/{id}/mark_read \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "last_viewed_at": "2026-01-01T12:00:00.000Z",
  "viewed_message_ids": [
    "post_xxxxxxxxxxxxxxxxxxxxxx"
  ]
}
'

import requests

url = "https://api.whop.com/api/v1/channels/{id}/mark_read"

payload = {
    "last_viewed_at": "2026-01-01T12:00:00.000Z",
    "viewed_message_ids": ["post_xxxxxxxxxxxxxxxxxxxxxx"]
}
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({
    last_viewed_at: '2026-01-01T12:00:00.000Z',
    viewed_message_ids: ['post_xxxxxxxxxxxxxxxxxxxxxx']
  })
};

fetch('https://api.whop.com/api/v1/channels/{id}/mark_read', 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.whop.com/api/v1/channels/{id}/mark_read",
  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([
    'last_viewed_at' => '2026-01-01T12:00:00.000Z',
    'viewed_message_ids' => [
        'post_xxxxxxxxxxxxxxxxxxxxxx'
    ]
  ]),
  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.whop.com/api/v1/channels/{id}/mark_read"

	payload := strings.NewReader("{\n  \"last_viewed_at\": \"2026-01-01T12:00:00.000Z\",\n  \"viewed_message_ids\": [\n    \"post_xxxxxxxxxxxxxxxxxxxxxx\"\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.whop.com/api/v1/channels/{id}/mark_read")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"last_viewed_at\": \"2026-01-01T12:00:00.000Z\",\n  \"viewed_message_ids\": [\n    \"post_xxxxxxxxxxxxxxxxxxxxxx\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.whop.com/api/v1/channels/{id}/mark_read")

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  \"last_viewed_at\": \"2026-01-01T12:00:00.000Z\",\n  \"viewed_message_ids\": [\n    \"post_xxxxxxxxxxxxxxxxxxxxxx\"\n  ]\n}"

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

{
  "channel_id": "feed_xxxxxxxxxxxxxxxxxxxxxx",
  "created_at": "2026-01-01T12:00:00.000Z",
  "id": "memb_1_xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "inbox_status": "accepted",
  "last_viewed_at": "2026-01-01T12:00:00.000Z",
  "notification_preference": "all",
  "pinned_position": null,
  "unread": false,
  "updated_at": "2026-01-01T12:00:00.000Z",
  "user": {
    "id": "user_xxxxxxxxxxxxxx",
    "name": "Dana Whitfield",
    "profile_picture": {
      "url": "https://ui-avatars.com/api/"
    },
    "username": "danawhitfield"
  },
  "user_id": "user_xxxxxxxxxxxxxx"
}

{
  "error": {
    "message": "account_id is required",
    "type": "bad_request",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "account_id is required",
    "type": "bad_request",
    "code": "<string>"
  }
}