问题
I am current trying to do a JavaScript post to Logstash by using a tcp input.
JavaScript Post
xhr = new XMLHttpRequest();
var url = "http://localhost:5043";
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-type", "application/json");
var data = JSON.stringify({"test" : hello});
xhr.send(data);
Logstash config file
input {
tcp {
port => 5043
}
}
filter{
}
output {
stdout {
codec => rubydebug
}
}
Output in console
{
"message" => "OPTIONS / HTTP/1.1\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.611Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Host: localhost:5043\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.620Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Connection: keep-alive\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.621Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Access-Control-Request-Method: POST\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.622Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Origin: http://atgdev11\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.623Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.626Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Access-Control-Request-Headers: content-type\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.634Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Accept: */*\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.651Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Referer: http://test/Welcome.jsp\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.653Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Accept-Encoding: gzip, deflate, sdch, br\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.719Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
{
"message" => "Accept-Language: en-US,en;q=0.8\r",
"@version" => "1",
"@timestamp" => "2016-12-15T09:58:54.720Z",
"host" => "0:0:0:0:0:0:0:1",
"port" => 55867,
}
I cant seem to see my json data {"test" : hello} passing into logstash could there be something wrong with my logstash.config file ? Please help
回答1:
Actually their is javascript error found in following line @JavaScript Post section
var data = JSON.stringify({"test" : hello});
replace with
var data = JSON.stringify({"test" : "hello"});
i,e double quotes was missed
Above changes will give u the required result
I have tested in following way
JavaScript Post
<!DOCTYPE html>
<html>
<title>Web Page Design</title>
<script>
function sayHello() {
var xhr = new XMLHttpRequest();
var url = "http://localhost:5043";
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-type", "application/json");
var data = JSON.stringify({"test" : "hello"});
xhr.send(data);
}
sayHello();
</script>
<body>
</body>
</html>
Logstash config file
input {
http {
port => 5043
response_headers => {
"Access-Control-Allow-Origin" => "*"
"Content-Type" => "text/plain"
"Access-Control-Allow-Headers" => "Origin, X-Requested-With, Content-Type,
Accept"
}
}
}
filter {
}
output {
stdout {
codec => rubydebug
}
}
Output in console
{
"host" => "0:0:0:0:0:0:0:1",
"@timestamp" => 2018-10-08T11:01:34.395Z,
"headers" => {
"http_user_agent" => "Mozilla/5.0 (Windows NT 6.1; Win64; x64) Appl
eWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
"content_length" => "17",
"request_path" => "/",
"request_method" => "POST",
"http_origin" => "null",
"content_type" => "application/json",
"http_accept_encoding" => "gzip, deflate, br",
"http_host" => "localhost:5043",
"request_uri" => "/",
"http_accept_language" => "en-US,en;q=0.9",
"http_accept" => "*/*",
"http_connection" => "keep-alive",
"http_version" => "HTTP/1.1"
},
"test" => "hello",#### here is you input data in json format #####
"@version" => "1"
}
来源：https://stackoverflow.com/questions/41161666/logstash-json-post-output