Create Multilingual Angular Apps with ngx-translate in Angular 13

Table of Contents

1. Introduction
2. Steps to Create a Multi-Language Web Application Using Angular and ngx-translate
   1. Installing Dependencies
   2. Importing Modules
   3. Adding Translation Service
   4. Creating Language Files
   5. Updating HTML
3. Testing and Verifying the Multi-Language Support
4. Conclusion
5. FAQs

Steps to Create a Multi-Language Web Application Using Angular and ngx-translate

Do You want to create a multi-language web application using Angular and ngx-translate? In this article, I will guide you through the easiest steps to achieve that. We'll cover everything from installing dependencies to updating your HTML to support multiple languages.

1. Installing Dependencies

To start, we need to add the necessary dependencies for our project. We will be using ngx-translate, so we need to install ngx-translate and its HTTP loader. Simply copy the dependency code from the ngx-translate documentation and add it to your project's dependencies. Once added, save the changes and wait for the dependencies to be installed.

2. Importing Modules

Now that we have the dependencies installed, we need to import the TranslateModule into our app module. Go to your app module file and add the import statement for TranslateModule. Make sure to also import the HttpClientModule if it's not already imported. Don't forget to add TranslateModule.forRoot() to the imports array in your module configuration.

3. Adding Translation Service

Next, we need to add the translation service to our component. Import the TranslationService from ngx-translate and inject it into your component's constructor. Set the default language using the .setDefaultLang() method. You can specify any language code here. For example, en for English, hi for Hindi, fr for French, etc.

4. Creating Language Files

To support multiple languages, we need to create language files. Create a folder called i18n under the assets folder of your project. Inside the i18n folder, create separate JSON files for each language you want to support. The file names should be Based on the language code, like en.json, hi.json, fr.json, etc. In these JSON files, define key-value pairs for the different translations you want to use in your application.

5. Updating HTML

Now that we have the setup ready, let's update our HTML to use the translations. Instead of hard-coding the content, we'll use curly brackets with the translate pipe to fetch the translations from the language files. For example, {{ 'home.card1' | translate }} will display the translated content for the key 'home.card1'. You can also use the translate directive to achieve the same result.

Testing and Verifying the Multi-Language Support

To test and verify the multi-language support, open your application in a browser. By default, the English language should be loaded. Verify that the translations are working correctly by changing the language to Hindi, French, Telugu, Gujarati, or any other language you have defined. Check if the content and messages are being translated accordingly.

Conclusion

Congratulations! You have successfully created a multi-language web application using Angular and ngx-translate. You can now provide a user-friendly experience by supporting multiple languages in your application. Feel free to explore more features and options provided by ngx-translate to enhance the language support in your application.

FAQs

Q: Can I add more languages to my application? A: Yes, you can add as many languages as you want by creating additional language files and updating the code accordingly.

Q: How can I translate dynamic content? A: ngx-translate provides methods and pipes to translate dynamic content. You can refer to the ngx-translate documentation for more information on translating dynamic content.

Q: Is ngx-translate compatible with Angular versions other than Angular 13? A: Yes, ngx-translate is compatible with various versions of Angular. You can refer to the ngx-translate documentation to find the compatible ngx-translate version for your Angular version.

Q: Can I use ngx-translate for server-side rendering? A: Yes, ngx-translate supports server-side rendering. You can refer to the ngx-translate documentation for detailed instructions on using ngx-translate with server-side rendering.

Q: How can I handle missing translations? A: ngx-translate provides a mechanism to handle missing translations. You can define fallback translations or handle missing translations based on your requirements. For more information, refer to the ngx-translate documentation.

Q: Can I translate the application based on the user's browser language? A: Yes, ngx-translate provides options to detect the user's browser language and automatically set the application language. You can refer to the ngx-translate documentation for instructions on implementing this feature.