How to use

newCall

method

in

okhttp3.OkHttpClient

public void sendGetRequest(String url) throws IOException {
 OkHttpClient client = new OkHttpClient();
 Request request = new Request.Builder().url(url).build();
 try (Response response = client.newCall(request).execute()) {
  String responseBody = response.body().string();
  // ... do something with response
 }
}

String run(String url) throws IOException {
 Request request = new Request.Builder()
   .url(url)
   .build();
 try (Response response = client.newCall(request).execute()) {
  return response.body().string();
 }
}

public static void main(String... args) throws Exception {
 OkHttpClient client = new OkHttpClient();
 // Create request for remote resource.
 Request request = new Request.Builder()
   .url(ENDPOINT)
   .build();
 // Execute the request and retrieve the response.
 try (Response response = client.newCall(request).execute()) {
  // Deserialize HTTP response to concrete type.
  ResponseBody body = response.body();
  List<Contributor> contributors = CONTRIBUTORS_JSON_ADAPTER.fromJson(body.source());
  // Sort list by the most contributions.
  Collections.sort(contributors, (c1, c2) -> c2.contributions - c1.contributions);
  // Output list of contributors.
  for (Contributor contributor : contributors) {
   System.out.println(contributor.login + ": " + contributor.contributions);
  }
 }
}

 public static final MediaType JSON
  = MediaType.parse("application/json; charset=utf-8");

OkHttpClient client = new OkHttpClient();

String post(String url, String json) throws IOException {
 RequestBody body = RequestBody.create(JSON, json);
 Request request = new Request.Builder()
   .url(url)
   .post(body)
   .build();
 Response response = client.newCall(request).execute();
 return response.body().string();
}

public String post(String url,String json) throws IOException {
  OkHttpClient client = new OkHttpClient();
  RequestBody body = RequestBody.create(JSON, json);
  Request request = new Request.Builder()
      .url(url)
      .post(body)
      .build();
  Response response = client.newCall(request).execute();
  return response.body().string();
}

String post(String url, String json) throws IOException {
 RequestBody body = RequestBody.create(JSON, json);
 Request request = new Request.Builder()
   .url(url)
   .post(body)
   .build();
 try (Response response = client.newCall(request).execute()) {
  return response.body().string();
 }
}

RequestBody formBody = new FormBody.Builder()
       .add("email", "Jurassic@Park.com")
       .add("tel", "90301171XX")
       .build();
   OkHttpClient client = new OkHttpClient();
   Request request = new Request.Builder()
       .url(url)
       .post(formBody)
       .build();
   Response response = client.newCall(request).execute();
   return response.body().string();

private String execute(Request request) throws IOException {
  OkHttpClient client = new OkHttpClient();
  Response response = client.newCall(request).execute();
  return response.body().string();
}

public void run() throws Exception {
 Request request = new Request.Builder()
   .url("https://publicobject.com/helloworld.txt")
   .build();
 try (Response response = client.newCall(request).execute()) {
  if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
  System.out.println(response.body().string());
 }
}

private final OkHttpClient client = new OkHttpClient();
public void run() throws Exception {
 RequestBody formBody = new FormEncodingBuilder()
   .add("search", "Jurassic Park")
   .build();
 Request request = new Request.Builder()
   .url("https://en.wikipedia.org/w/index.php")
   .post(formBody)
   .build();
 Response response = client.newCall(request).execute();
 if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
 System.out.println(response.body().string());
}

private <T> T execute(final Request request, final Class<T> classOfT) throws IOException {
  OkHttpClient client = new OkHttpClient();
  Response response = client.newCall(request).execute();
  return GOSN.fromJson(response.body().string(), classOfT);
}

public void run() throws Exception {
 Request request = new Request.Builder()
   .url("https://publicobject.com/secrets/hellosecret.txt")
   .build();
 try (Response response = client.newCall(request).execute()) {
  if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
  System.out.println(response.body().string());
 }
}

private final OkHttpClient client = new OkHttpClient();
  public void run() throws Exception {
   RequestBody formBody = new FormEncodingBuilder()
     .add("email", "Jurassic@Park.com")
     .add("tel", "90301171XX")
     .build();
   Request request = new Request.Builder()
     .url("https://en.wikipedia.org/w/index.php")
     .post(formBody)
     .build();
   Response response = client.newCall(request).execute();
   if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
   System.out.println(response.body().string());
  }

private String execute(Request request) throws IOException {
  OkHttpClient client = new OkHttpClient();
  Response response = client.newCall(request).execute();
  return response.body().string();
}

public void run() throws Exception {
 Request request = new Request.Builder()
   .url("http://publicobject.com/secrets/hellosecret.txt")
   .build();
 try (Response response = client.newCall(request).execute()) {
  if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
  System.out.println(response.body().string());
 }
}

 private static final String IMGUR_CLIENT_ID = "...";
private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");

private final OkHttpClient client = new OkHttpClient();

public void run() throws Exception {
 // Use the imgur image upload API as documented at https://api.imgur.com/endpoints/image
 RequestBody requestBody = new MultipartBuilder()
   .type(MultipartBuilder.FORM)
   .addPart(
     Headers.of("Content-Disposition", "form-data; name=\"title\""),
     RequestBody.create(null, "Square Logo"))
   .addPart(
     Headers.of("Content-Disposition", "form-data; name=\"image\""),
     RequestBody.create(MEDIA_TYPE_PNG, new File("website/static/logo-square.png")))
   .build();

 Request request = new Request.Builder()
   .header("Authorization", "Client-ID " + IMGUR_CLIENT_ID)
   .url("https://api.imgur.com/3/image")
   .post(requestBody)
   .build();

 Response response = client.newCall(request).execute();
 if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

 System.out.println(response.body().string());
}

private <T> T execute(Request request, Class<T> classOfT) throws IOException {
  OkHttpClient client = new OkHttpClient();
  Response response = client.newCall(request).execute();
  return GOSN.fromJson(response.body().string(), classOfT);
}

public void run() throws Exception {
 File file = new File("README.md");
 Request request = new Request.Builder()
   .url("https://api.github.com/markdown/raw")
   .post(RequestBody.create(MEDIA_TYPE_MARKDOWN, file))
   .build();
 try (Response response = client.newCall(request).execute()) {
  if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
  System.out.println(response.body().string());
 }
}

OkHttpClient client = new OkHttpClient();
  Request request = new Request.Builder()
      .url(url)
      .build();
  Response response = client.newCall(request).execute();
  return new JSONArray(response.body().string());

public <T> T execute(Request request, Type type) throws IOException {
  OkHttpClient client = new OkHttpClient();
  Response response = client.newCall(request).execute();
  return GOSN.fromJson(response.body().string(), type);
}