* Connection state changed (MAX_CONCURRENT_STREAMS = 128)! > content-type: application/x-www-form-urlencoded
![java http client example java http client example](https://cdn.crunchify.com/wp-content/uploads/2018/12/Memcached-Java-Client-Tutorial-using-whalin-and-com.googlecode.xmemcached-Libraries-1536x597.png)
* Using Stream ID: 1 (easy handle 0x160f6b61d20) * Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0 * Connection state changed (HTTP/2 confirmed) * issuer: C=US O=Amazon OU=Server CA 1B CN=Amazon * subjectAltName: host "" matched cert's "" * SSL connection using TLSv1.2 / ECDHE-RSA-AES128-GCM-SHA256 * TLSv1.2 (IN), TLS handshake, Finished (20): * TLSv1.2 (OUT), TLS handshake, Finished (20): * TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1): * TLSv1.2 (OUT), TLS handshake, Client key exchange (16): * TLSv1.2 (IN), TLS handshake, Server finished (14): * TLSv1.2 (IN), TLS handshake, Server key exchange (12): * TLSv1.2 (IN), TLS handshake, Certificate (11): * TLSv1.3 (IN), TLS handshake, Server hello (2): * TLSv1.3 (OUT), TLS handshake, Client hello (1): * CAfile: c:/Program Files/Git/mingw64/ssl/certs/ca-bundle.crt * successfully set certificate verify locations: I can use CURL to send a HTTP/2 POST request with a payload to the as in the following example: "c:\Program Files\Git\mingw64\bin\curl" -v -http2 -d "arg1=param1&arg2=param2" Let’s add an authenticator to our client: HttpClient client = HttpClient.newBuilder()
#JAVA HTTP CLIENT EXAMPLE PASSWORD#
This endpoint accepts the username “postman” with the password “password”. We can do this by configuring the HttpClient Builder and our client will use the credentials we set up. Let’s change our client so that it sends the required authentication data.
#JAVA HTTP CLIENT EXAMPLE CODE#
This response code means that the endpoint requires authentication but the client didn’t send any credentials. This time we received HTTP status 401 “Unauthorized”. Let's check the logs and look for the status code. Firstly, change the previous URL to this and run the application again: HttpRequest request = HttpRequest.newBuilder()
![java http client example java http client example](https://i.ytimg.com/vi/VSi3KFlVAbE/hqdefault.jpg)
Let’s use a Postman Echo endpoint that requires authentication. After this, let's see how we can handle authentication.īefore we configure authentication we need an URL to test it.
![java http client example java http client example](https://www.mobilefish.com/images/developer/javawebstart_desktop.gif)
We see that the HTTP status is 200, meaning our request was successful. The output should look like this: INFO .HttpClientBasicAuthentication - Status 200 Let’s run our application and check the logs. This tells the client that we would like to treat the response body as a String. The second parameter of the send method is a response body handler. The uri method sets the URL where we would like to send the request.Īfter that, we send the request using our client. The GET method sets the HTTP method of the request. Secondly, we create an HttpRequest using the builder design pattern. ("Status ", response.statusCode()) įirstly, we create an HttpClient, which can be used to execute HTTP requests. HttpResponse response = nd(request, BodyHandlers.ofString()) HttpRequest request = HttpRequest.newBuilder() Let’s start by executing a simple GET request without any authentication for now: HttpClient client = HttpClient.newHttpClient()