In this article, we are going to follow below steps to add a new language into our app.
We are taking the Russian language as an example. So, here are the steps:
Create a Locale
This step can be completed by following below instructions:
Create a Local JSON File
We need a locale data json file where we can keep all our labels, messages etc. language variables to set their translations for the specific language.
For this, create a file “ru_RU.json” under the folder src/lngProvider/locales/
Now, you can copy the whole content of file src/lngProvider/locales/en_US.json (this contains all translation variables with value of English language strings) and paste that into our newly created ru_RU.json file.
The above step will give us all the labels, messages etc variables and we can replace their values with the Russian translation.
For example, let’s change value of “pages.samplePage” : “Sample Page” to “pages.samplePage”: “Пример страницы”
Create i18 Context
Now, in this step, we are going to create an entry file src/lngProvider/entry/ with the name “ru_RU.js”.
This file is needed to import both the react-intl’s local data and our locale data json file and setup the i18 context.
Add Locale to appLocales
In this step, we will add our newly created i18 context in above step to the react-intl’s appLocales. This will be done in two further steps:
Open the file src/lngProvider/index.js and Import i18 context locale entry file into this.
Add imported i18 context variable to the appLocale Object. Check following source code for reference.
Add an Option to Language Switcher
For this, we need to access the languageData.js file which can be found under src/containers/Topbar/ folder.
Here in this file, we need to add following language object to the languageData array:
languageId: 'russian', // Unique ID for language
locale : 'ru', // locale name to link with the previously named locale