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Java

Set a Multipart Part Body from BinData

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Demonstrates Rest.SetMultipartBodyBd, which sets the binary body of the selected multipart part from a BinData.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background. A multipart request is assembled part by part: the part selector chooses the part being built, header fields describe it, and a SetMultipartBody method supplies its content. The request is then sent with a multipart send or full-request method.

Chilkat Java Downloads

Java
import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkRest rest = new CkRest();
    boolean bTls = true;
    boolean bAutoReconnect = true;
    success = rest.Connect("example.com",443,bTls,bAutoReconnect);
    if (success == false) {
        System.out.println(rest.lastErrorText());
        return;
        }

    //  The file paths are relative to the application's current working directory.  Absolute paths
    //  may also be used.  Supply the paths appropriate to your own environment.

    //  Select the multipart part to build, and set its header fields.
    rest.put_PartSelector("1");
    rest.AddHeader("Content-Disposition","form-data; name=\"field1\"");
    rest.AddHeader("Content-Type","image/png");

    //  Set the binary body of the selected part from a BinData.
    CkBinData bdBody = new CkBinData();
    boolean bLoaded = bdBody.LoadFile("qa_data/image.png");
    if (bLoaded != true) {
        System.out.println("Failed to load the part body file.");
        return;
        }

    success = rest.SetMultipartBodyBd(bdBody);
    if (success == false) {
        System.out.println(rest.lastErrorText());
        return;
        }

    String responseText = rest.fullRequestMultipart("POST","/api/upload");
    if (rest.get_LastMethodSuccess() == false) {
        System.out.println(rest.lastErrorText());
        return;
        }

    System.out.println(responseText);
  }
}