I am trying to implement the aws sns service for a bucket in s3 and i am following this document https://docs.aws.amazon.com/sns/latest/dg/SendMessageToHttp.html according to this there will be subscribe url in the request for the confirmation subscription which will be coming to the url that we provide, but i am receiving empty body in the request. I tried to log the body but gave me an empty object. and tried by using the bodyparser but same result.
here is my route that i am implementing.
router.post("/s3FileCallback", function (req, res) {
debugger;
var bodyParser = require('body-parser');
var app = express();
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json())
if (req.get("x-amz-sns-message-type") == "SubscriptionConfirmation") {
console.log("arn" + req.get("x-amz-sns-topic-arn"));
const subscribeUrl = req.body.SubscribeURL;
console.log("subscribeUrl" + subscribeUrl);
})
is there any thing i am missing. can any one point me in right direction please.
I found what i was missing,
router.post('/s3FileCallback', function(req, res) {
debugger;
if (req.get('x-amz-sns-message-type') == 'SubscriptionConfirmation') {
console.log('arn' + req.get('x-amz-sns-topic-arn'));
const subscribeUrl = req.body.SubscribeURL;
console.log('subscribeUrl' + subscribeUrl);
}
});
I am using body parser as a middleware, amazon is sending content-type as text\plain in the post request thanks for this forum i did not realize the type until i came across this https://forums.aws.amazon.com/message.jspa?messageID=261061#262098
so tried a work around to change the header before using the bodyparser
app.use(function(req, res, next) {
if (req.get('x-amz-sns-message-type')) {
req.headers['content-type'] = 'application/json';
}
next();
});
app.use(bodyParser.json({ limit: '50mb' }));
app.use(bodyParser.urlencoded({ limit: '50mb', extended: false }));
so now the req is parsed as json.
In case if you are using php, this should work
$res = file_get_contents('php://input');
file_put_contents('response.txt', $res. "\n", FILE_APPEND);