React Native

Amazon Translate Text

See more AWS Translate Examples

Demonstrates how to use the AWS Translate service to translate text from one language to another. React Native

import { AuthAws, JsonObject, Rest, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const rest = new Rest();

  const authAws = new AuthAws();
  authAws.accessKey = 'AWS_ACCESS_KEY';
  authAws.secretKey = 'AWS_SECRET_KEY';
  authAws.region = 'us-west-2';
  authAws.serviceName = 'translate';
  rest.setAuthAws(authAws);

  // URL: https://translate.us-west-2.amazonaws.com/
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  try {
    await rest.connectAsync('translate.us-west-2.amazonaws.com', port, bTls, bAutoReconnect);
  } catch {
    console.log(`ConnectFailReason: ${rest.connectFailReason}`);
    console.log(rest.lastErrorText);
    return;
  }

  // Translate text from English to German
  const json = new JsonObject();
  json.updateString('SourceLanguageCode', 'en');
  json.updateString('TargetLanguageCode', 'de');
  json.updateString('Text', 'This is the text to be translated');

  rest.addHeader('Content-Type', 'application/x-amz-json-1.1');
  rest.addHeader('X-Amz-Target', 'AWSShineFrontendService_20170701.TranslateText');

  const sbRequestBody = new StringBuilder();
  json.emitSb(sbRequestBody);
  const sbResponseBody = new StringBuilder();
  try {
    await rest.fullRequestSbAsync('POST', '/', sbRequestBody, sbResponseBody);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  const respStatusCode = rest.responseStatusCode;
  if (respStatusCode >= 400) {
    console.log(`Response Status Code = ${respStatusCode}`);
    console.log('Response Header:');
    console.log(rest.responseHeader);
    console.log('Response Body:');
    console.log(sbResponseBody.getAsString());
    return;
  }

  const jsonResponse = new JsonObject();
  jsonResponse.loadSb(sbResponseBody);
  jsonResponse.emitCompact = false;

  console.log(jsonResponse.emit());

  // {
  //   "SourceLanguageCode": "en",
  //   "TargetLanguageCode": "de",
  //   "TranslatedText": "Dies ist der zu �bersetzende Text"
  // }

  console.log(jsonResponse.stringOf('TranslatedText'));
}