curl --request POST \
  --url https://api.heyy.io/v3/messages/send \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "chat": {
    "chatId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  },
  "body": "<string>",
  "attachments": [
    {
      "type": "image",
      "fileId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    }
  ],
  "header": "<string>",
  "footer": "<string>",
  "replyToMessageId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "scheduledAt": "2023-11-07T05:31:56Z"
}
'

import requests

url = "https://api.heyy.io/v3/messages/send"

payload = {
    "chat": { "chatId": "3c90c3cc-0d44-4b50-8888-8dd25736052a" },
    "body": "<string>",
    "attachments": [
        {
            "type": "image",
            "fileId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
        }
    ],
    "header": "<string>",
    "footer": "<string>",
    "replyToMessageId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "scheduledAt": "2023-11-07T05:31:56Z"
}
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({
    chat: {chatId: '3c90c3cc-0d44-4b50-8888-8dd25736052a'},
    body: JSON.stringify('<string>'),
    attachments: [
      {
        type: 'image',
        fileId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'
      }
    ],
    header: '<string>',
    footer: '<string>',
    replyToMessageId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    scheduledAt: '2023-11-07T05:31:56Z'
  })
};

fetch('https://api.heyy.io/v3/messages/send', 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.heyy.io/v3/messages/send",
  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([
    'chat' => [
        'chatId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a'
    ],
    'body' => '<string>',
    'attachments' => [
        [
                'type' => 'image',
                'fileId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                'id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a'
        ]
    ],
    'header' => '<string>',
    'footer' => '<string>',
    'replyToMessageId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'scheduledAt' => '2023-11-07T05:31:56Z'
  ]),
  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.heyy.io/v3/messages/send"

	payload := strings.NewReader("{\n  \"chat\": {\n    \"chatId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  },\n  \"body\": \"<string>\",\n  \"attachments\": [\n    {\n      \"type\": \"image\",\n      \"fileId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n    }\n  ],\n  \"header\": \"<string>\",\n  \"footer\": \"<string>\",\n  \"replyToMessageId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"scheduledAt\": \"2023-11-07T05:31:56Z\"\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.heyy.io/v3/messages/send")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chat\": {\n    \"chatId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  },\n  \"body\": \"<string>\",\n  \"attachments\": [\n    {\n      \"type\": \"image\",\n      \"fileId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n    }\n  ],\n  \"header\": \"<string>\",\n  \"footer\": \"<string>\",\n  \"replyToMessageId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"scheduledAt\": \"2023-11-07T05:31:56Z\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.heyy.io/v3/messages/send")

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  \"chat\": {\n    \"chatId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  },\n  \"body\": \"<string>\",\n  \"attachments\": [\n    {\n      \"type\": \"image\",\n      \"fileId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n    }\n  ],\n  \"header\": \"<string>\",\n  \"footer\": \"<string>\",\n  \"replyToMessageId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"scheduledAt\": \"2023-11-07T05:31:56Z\"\n}"

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

{
  "success": true,
  "data": {
    "id": "string",
    "createdAt": "2024-01-01T00:00:00.000Z",
    "updatedAt": "2024-01-01T00:00:00.000Z",
    "chatId": "string",
    "channelId": "string",
    "type": "message",
    "sender": "outbound",
    "sources": [],
    "status": "none",
    "scheduledAt": "string",
    "content": {
      "body": "string",
      "attachments": [],
      "header": "string",
      "footer": "string",
      "payload": "string"
    },
    "forwarded": true,
    "replyTo": {
      "id": "string",
      "vendorId": "string",
      "sender": "outbound",
      "type": "text",
      "timestamp": "string",
      "text": "string"
    },
    "reactions": [],
    "errors": [],
    "history": [],
    "vendorId": "string",
    "timestamp": "string",
    "vendorDetails": {
      "whatsapp": {
        "context": {
          "frequentlyForwarded": true,
          "referredProduct": {
            "catalogId": "string",
            "productRetailerId": "string"
          }
        },
        "order": {
          "catalogId": "string",
          "productItems": []
        }
      },
      "instagram": {
        "commentId": "string"
      },
      "messenger": {
        "commentId": "string"
      }
    },
    "metadata": {
      "campaignContactId": "string",
      "campaignExecutionId": "string"
    },
    "isSensitive": true,
    "aiGenerationId": "string",
    "chat": {
      "id": "string",
      "createdAt": "2024-01-01T00:00:00.000Z",
      "updatedAt": "2024-01-01T00:00:00.000Z",
      "status": "open",
      "isUnread": true,
      "openUntil": "string",
      "unreadCount": 0,
      "channelId": "string",
      "contactId": "string",
      "contact": {
        "id": "string",
        "createdAt": "2024-01-01T00:00:00.000Z",
        "updatedAt": "2024-01-01T00:00:00.000Z",
        "firstName": "string",
        "lastName": "string",
        "fullName": "string",
        "isSubscribed": true,
        "handles": [],
        "labels": [],
        "attributes": [],
        "displayName": "string",
        "phoneNumber": "string",
        "email": "string",
        "chats": [],
        "metadata": {}
      },
      "handleId": "string",
      "handle": {
        "id": "string",
        "createdAt": "2024-01-01T00:00:00.000Z",
        "updatedAt": "2024-01-01T00:00:00.000Z",
        "type": "phone_number",
        "isPrimary": true,
        "value": "string",
        "extra": {},
        "hasChats": true
      },
      "latestMessage": {
        "id": "string",
        "vendorId": "string",
        "sender": "outbound",
        "type": "text",
        "timestamp": "string",
        "text": "string"
      },
      "assignedUserId": "string",
      "assignedTeamId": "string",
      "isSensitive": true
    }
  }
}

{
  "success": false,
  "error": {
    "messageKey": "invalid_body_params",
    "message": "Invalid body params",
    "invalidParams": {
      "email": {
        "key": "invalid_string",
        "message": "Invalid email"
      }
    }
  }
}

{
  "success": false,
  "error": {
    "messageKey": "unauthorized",
    "message": "Unauthorized"
  }
}

{
  "success": false,
  "error": {
    "messageKey": "insufficient_billing_plan",
    "message": "Insufficient billing plan"
  }
}

{
  "success": false,
  "error": {
    "messageKey": "forbidden",
    "message": "Forbidden"
  }
}

{
  "success": false,
  "error": {
    "messageKey": "contact_not_found",
    "message": "Contact not found"
  }
}

{
  "success": false,
  "error": {
    "messageKey": "too_many_requests",
    "message": "Too many requests. Limit is applied per minute per tenant. Please retry after the time indicated by the X-RateLimit-Reset header."
  }
}

{
  "success": false,
  "error": {
    "messageKey": "internal_error",
    "message": "Oops! Something went wrong"
  }
}