curl --request POST \
  --url https://api.relayapp.im/v1/chats/{chatId}/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "message": {
    "parts": [
      {
        "type": "text",
        "value": "<string>",
        "mention": "<string>",
        "mention_range": "<array>"
      }
    ],
    "idempotency_key": "<string>"
  }
}
'

import requests

url = "https://api.relayapp.im/v1/chats/{chatId}/messages"

payload = { "message": {
        "parts": [
            {
                "type": "text",
                "value": "<string>",
                "mention": "<string>",
                "mention_range": "<array>"
            }
        ],
        "idempotency_key": "<string>"
    } }
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({
    message: {
      parts: [
        {type: 'text', value: '<string>', mention: '<string>', mention_range: '<array>'}
      ],
      idempotency_key: '<string>'
    }
  })
};

fetch('https://api.relayapp.im/v1/chats/{chatId}/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://api.relayapp.im/v1/chats/{chatId}/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([
    'message' => [
        'parts' => [
                [
                                'type' => 'text',
                                'value' => '<string>',
                                'mention' => '<string>',
                                'mention_range' => '<array>'
                ]
        ],
        'idempotency_key' => '<string>'
    ]
  ]),
  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.relayapp.im/v1/chats/{chatId}/messages"

	payload := strings.NewReader("{\n  \"message\": {\n    \"parts\": [\n      {\n        \"type\": \"text\",\n        \"value\": \"<string>\",\n        \"mention\": \"<string>\",\n        \"mention_range\": \"<array>\"\n      }\n    ],\n    \"idempotency_key\": \"<string>\"\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.relayapp.im/v1/chats/{chatId}/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"message\": {\n    \"parts\": [\n      {\n        \"type\": \"text\",\n        \"value\": \"<string>\",\n        \"mention\": \"<string>\",\n        \"mention_range\": \"<array>\"\n      }\n    ],\n    \"idempotency_key\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.relayapp.im/v1/chats/{chatId}/messages")

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  \"message\": {\n    \"parts\": [\n      {\n        \"type\": \"text\",\n        \"value\": \"<string>\",\n        \"mention\": \"<string>\",\n        \"mention_range\": \"<array>\"\n      }\n    ],\n    \"idempotency_key\": \"<string>\"\n  }\n}"

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

{
  "chat_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "message": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "parts": [
      {
        "type": "text",
        "value": "<string>",
        "reactions": [
          {
            "is_me": true,
            "handle": {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "handle": "<string>",
              "joined_at": "2023-11-07T05:31:56Z",
              "status": "active",
              "left_at": "2023-11-07T05:31:56Z",
              "is_me": true,
              "kind": "user",
              "display_name": "<string>",
              "avatar_url": "<string>"
            },
            "type": "love",
            "custom_emoji": "<string>"
          }
        ],
        "mention": "<string>",
        "mention_range": "<array>"
      }
    ],
    "created_at": "2023-11-07T05:31:56Z",
    "sent_at": "2023-11-07T05:31:56Z",
    "delivery_status": "sent",
    "delivered_at": "2023-11-07T05:31:56Z",
    "from_handle": {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "handle": "<string>",
      "joined_at": "2023-11-07T05:31:56Z",
      "status": "active",
      "left_at": "2023-11-07T05:31:56Z",
      "is_me": true,
      "kind": "user",
      "display_name": "<string>",
      "avatar_url": "<string>"
    },
    "reply_to": {
      "message_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "part_index": 1
    }
  }
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "trace_id": "<string>"
}