curl --request POST \
  --url https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join', 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://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join"

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

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://softmax.com/api/observatory/v2/coworlds/play/session/{session_id}/join")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "entrant_kind": "player",
  "target_url": "<string>",
  "slot": 123,
  "player": {
    "slot": 123,
    "label": "<string>",
    "slot_kind": "human",
    "user_id": "<string>",
    "player_id": "<string>",
    "player_name": "<string>",
    "policy_version_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "policy_name": "<string>",
    "policy_version": 123,
    "joined_at": "2023-11-07T05:31:56Z",
    "is_viewer": false
  },
  "spectator": {
    "label": "<string>",
    "joined_at": "2023-11-07T05:31:56Z",
    "player_id": "<string>",
    "player_name": "<string>",
    "is_viewer": false
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}