[英]How to Read Amazon SNS JSON Response
How do I get the TranscriptionJobName and TranscriptionJobStatus from Amazon SNS's response to an http endpoint? 如何从Amazon SNS对http端点的响应中获取TranscriptionJobName和TranscriptionJobStatus?
When I try my code below, the name variable in my text file is blank but the message from Amazon logs into my file.txt just fine. 当我在下面尝试我的代码时,文本文件中的name变量为空,但是来自Amazon的消息记录到我的file.txt中就可以了。
What I get from SNS in the file.txt (some values omitted): 我从file.txt中的SNS得到什么(省略了一些值):
Array
(
[Type] => Notification
[MessageId] => MSG_ID
[TopicArn] => TOPIC_ARN
[Message] => {"version":"0","id":"msg_id","detail-type":"Transcribe Job State Change","source":"aws.transcribe","account":"account_number","time":"2019-03-07T18:19:08Z","region":"us-east-1","resources":[],"detail":{"TranscriptionJobName":"702edfc","TranscriptionJobStatus":"COMPLETED"}}
[Timestamp] => 2019-03-07T18:19:09.194Z
[SignatureVersion] => 1
[Signature] => sign==
[SigningCertURL] => sign_cert.pem
[UnsubscribeURL] => unsubscribe_url
)
What I get from namer.txt: 我从namer.txt得到的结果是:
{
My code is able to read the message sent to the endpoint but trying to parse further into the response returns blank in a txt file I'm using to debug.. 我的代码能够读取发送到端点的消息,但是尝试进一步解析为响应,将在我用来调试的txt文件中返回空白。
My Code Attempt: 我的代码尝试:
//Endpoint.php
//Fetch the raw POST body containing the message
$postBody = file_get_contents('php://input');
// JSON decode the body to an array of message data
$message = json_decode($postBody, true);
if ($message) {
//just for debugging put entire response in file.txt
file_put_contents('file.txt', print_r($message, true));
//if its a Notification
if ($message['Type'] === 'Notification'){
//then get the name of the Transcription Job
$name = $message['Message']['detail'][0]['TranscriptionJobName'];
//put that into namer.txt
file_put_contents('namer.txt', $name,true);
}
}
For some reason, it seems like $message['Message']
still is a string and not an array. 由于某种原因,似乎$message['Message']
仍然是字符串而不是数组。
You need to decode it before you can access elements in it: 您需要先对其进行解码,然后才能访问其中的元素:
// Decode
$message['Message'] = json_decode($message['Message'], true);
// Now you can access it using:
$name = $message['Message']['detail']['TranscriptionJobName'];
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