Global throttler, Throttler behind the proxy with custom message in nestjs

app.module.ts

import { Module } from '@nestjs/common';
import { ThrottlerModule } from '@nestjs/throttler';
import { ThrottlerStorageRedisService } from 'nestjs-throttler-storage-redis';

import { AppService } from './service/app.service';
import { AppController } from './app.controller';
import { APP_GUARD } from '@nestjs/core';
import { GlobalThrottlerGuard } from './guards/global-throttler.guard';

@Module({
    imports: [
        ThrottlerModule.forRoot({
            ttl: 50,
            limit: 10,
            storage: new ThrottlerStorageRedisService({
                host: process.env.REDIS_HOST,
                port: +process.env.REDIS_PORT,
                db: 1,
            }),
        }),
    ],
    controllers: [AppController],
    providers: [
        AppService,
        {
            provide: APP_GUARD,
            useClass: GlobalThrottlerGuard,
        },
    ],
})
export class AppModule {}

global-throttler.guard.ts

import { Injectable } from '@nestjs/common';
import {
    ThrottlerException,
    ThrottlerGuard,
} from '@nestjs/throttler';

@Injectable()
export class GlobalThrottlerGuard extends ThrottlerGuard {
    protected throwThrottlingException(): void {
        throw new ThrottlerException(
            'تعداد درخواست های ارسال شده از حد مجاز رد شده است',
        );
    }
}

throttler-behind-proxy.guard.ts

import {
    ThrottlerException,
    ThrottlerGuard,
} from '@nestjs/throttler';
import { Injectable } from '@nestjs/common';

@Injectable()
export class ThrottlerBehindProxyGuard extends ThrottlerGuard {
    protected getTracker(req: Record<string, any>): string {
        return req.ips.length ? req.ips[0] : req.ip;
    }
    protected throwThrottlingException(): void {
        throw new ThrottlerException(
            'تعداد درخواست های ارسال شده از حد مجاز رد شده است',
        );
    }
}