Custom headers accept-language to current language i18n

[quanjongliang]

Hi everyone, How can I set the current language in i18n as headers value I tried resolvers: [new HeaderResolver('accept-language')], but received WARN [I18nService] HeaderResolver does not support RFC4647 Accept-Language header. Please use AcceptLanguageResolver instead.

Thanks

[rubiin]

As the error suggests, you should use AcceptLanguageResolver.

import { Module } from '@nestjs/common';
import * as path from 'path';
import {
  AcceptLanguageResolver,
  I18nJsonLoader,
  I18nModule
} from 'nestjs-i18n';

@Module({
  imports: [
    I18nModule.forRootAsync({
      useFactory: (configService: ConfigService) => ({
        fallbackLanguage: "en",
        loaderOptions: {
          path: join(__dirname, "/i18n/"),
          watch: true,
        },
      }),
      resolvers: [
        AcceptLanguageResolver,
      ],
      inject: [ConfigService],
    }),
  ],
  controllers: [],
})
export class AppModule {}

[c4nzin]

As the error suggests, you should use AcceptLanguageResolver.

import { Module } from '@nestjs/common';
import * as path from 'path';
import {
  AcceptLanguageResolver,
  I18nJsonLoader,
  I18nModule
} from 'nestjs-i18n';

@Module({
  imports: [
    I18nModule.forRootAsync({
      useFactory: (configService: ConfigService) => ({
        fallbackLanguage: "en",
        loaderOptions: {
          path: join(__dirname, "/i18n/"),
          watch: true,
        },
      }),
      resolvers: [
        AcceptLanguageResolver,
      ],
      inject: [ConfigService],
    }),
  ],
  controllers: [],
})
export class AppModule {}

Hi rubin, may you explain this section please? i didn't understand that.

inject: [ConfigService],

[rubiin]

You could ignore that if you are not using config service to manage fallbacks