Make the POST call

Last update: May 14, 2024

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The next step is to make an HTTP POST call to the endpoint with the necessary parameters. The template and the datafiles are provided as resource files. Properties of the generated pdf are specified via the option’s parameter in the request.The property embedFonts is used to embed custom fonts in the generated pdf.Please follow this documentation to deploy custom fonts to your Forms cloud instance. The properties are specified in the options.json resource file. Since, the end point has token based authentication we pass the Access Token in the request header.

The following code was used to generate pdf by merging data with the template

public class DocumentGeneration
{
        public String SAVE_LOCATION = "c:\\aspire1";
        public void mergeDataWithXdpTemplate(String postURL)
        {
                HttpPost httpPost = new HttpPost(postURL);
                CredentialUtilites cu = new CredentialUtilites();
                String accessToken = cu.getAccessToken();
                httpPost.addHeader("Authorization", "Bearer " + accessToken);
                ClassLoader classLoader = DocumentGeneration.class.getClassLoader();
                URL templateFile = classLoader.getResource("templates/custom_fonts.xdp");
                File xdpTemplate = new File(templateFile.getPath());
                URL url = classLoader.getResource("datafiles");
                System.out.println(url.getPath());
                File files[] = new File(url.getPath()).listFiles();
                for (int i = 0; i < files.length; i++) {
                        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
                        ContentType strContent = ContentType.create("text/plain", Charset.forName("UTF-8"));
                        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
                        builder.addBinaryBody("data", files[i]);
                        builder.addBinaryBody("template", xdpTemplate);
                        builder.addBinaryBody("options",GetOptions.getPDFOptions().getBytes(),ContentType.APPLICATION_JSON,"options"
                        try {
                                HttpEntity entity = builder.build();
                                httpPost.setEntity(entity);
                                CloseableHttpClient httpclient = HttpClients.createDefault();
                                CloseableHttpResponse response = httpclient.execute(httpPost);
                                InputStream generatedPDF = response.getEntity().getContent();
                                byte[] bytes = IOUtils.toByteArray(generatedPDF);
                                File saveLocation = new File(SAVE_LOCATION);
                                if (!saveLocation.exists()) {
                                        saveLocation.mkdirs();
                                }
                                File outputFile = new File(SAVE_LOCATION+File.separator+files[i].getName().replace("xml", "pdf"));
                                try (FileOutputStream outputStream = new FileOutputStream(outputFile)) {
                                        outputStream.write(bytes);
                                }
                        } catch (Exception e) {
                                System.out.println("The error is " + e.getMessage());
                        }

                }
                System.out.println("Done generating " + files.length + " files");

        }

}
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