将数据从aws api网关以x-www-form-urlencoded格式发送到http端点

Question

I have an AWS API gateway proxy method. If I post data to AWS API gateway, then AWS API gateway posts data to my PHP backend. I have this mapping template in API gateway:

{
    "body-json" : $input.json('$'),
    "context" : {
        "cognito-identity-id" : "$context.identity.cognitoIdentityId"
    }
}

The problem is that API gateway posts data in JSON format. And PHP does not understand JSON (content type application/json), $_POST array is empty. PHP understands application/x-www-form-urlencoded format. How to make AWS API gateway to send data in x-www-form-urlencoded format?

Answer 1

Silly question, but have you tried PHP's JSON Decode function?

    $json = '{
       "body-json" : $input.json(\'$\'),
       "context" : {
        "cognito-identity-id" : "$context.identity.cognitoIdentityId"
       }
     }';

$phpArray = json_decode($json, true);

Which will produce an associative PHP array from that json.