Dart

Read the REST Response Body into a StringBuilder

Demonstrates Rest.ReadRespSb, which reads the response body as text into a StringBuilder, replacing its previous contents.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

Chilkat Dart Downloads

Download Chilkat for Dart

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final rest = CkRest();
  final bTls = true;
  final bAutoReconnect = true;
  try {
    rest.connect('example.com', 443, bTls, bAutoReconnect);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  try {
    rest.sendReqNoBody('GET', '/api/items/123');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final statusCode = rest.readResponseHeader();
  if (statusCode < 0) {
    print(rest.lastErrorText);
    return;
  }

  // Read the response body as text into a StringBuilder, replacing its previous contents.
  final sbResponse = CkStringBuilder();
  try {
    rest.readRespSb(sbResponse);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final String responseBody;
  try {
    responseBody = sbResponse.getAsString();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(responseBody);
}