尝试使用PHP将数据发布到物联网设备

Question

我有一块冲浪板。我想通过POST请求(http集成)打开电路板上的一个led，如果我在我的CLI中执行以下命令，它可以工作：

  curl -i -X POST --data '{"dev_id":"myid","port": 1,"confirmed": false, "payload_raw": "MDA="}' https://integrations.thethingsnetwork.org/ttn-eu/api/v2/down/myapplication/test?key=ttn-account-v2.thekey

但是现在我想用PHP实现，所以我有这样的代码：

<?php

//API Url
$endpoint_url = 'https://integrations.thethingsnetwork.org/ttn-eu/api/v2/down/myapp/test?key=ttn-account-v2.mykey';


$data_to_post  = [
'dev_id' => 'mydevice',
'port' => 1,
'confirmed' => false,
'payload_raw' => 'MDA='];


$options = [
CURLOPT_URL        => $endpoint_url,
CURLOPT_POST       => true,
CURLOPT_POSTFIELDS => $data_to_post,`enter code here`
CURLOPT_SSL_VERIFYPEER=> false
];


$curl = curl_init();
curl_setopt_array($curl, $options);


curl_exec($curl);
var_dump(curl_getinfo($curl));
curl_close($curl);

并且它只返回HTTP400错误请求。我做错了什么？

Answer 1

尝试使用json_encode对数据进行编码

$data_to_post  = json_encode([
    'dev_id' => 'mydevice',
    'port' => 1,
    'confirmed' => false,
    'payload_raw' => 'MDA=']);