feat: prometheus

Author: naman22a

apps/api-gateway/src/app.module.ts

@@ -12,6 +12,7 @@ import { SubmissionsController } from './controllers/submissions/submissions.con
 import { EventsGateway } from './gateways/events.gateway';
 import { BullModule } from '@nestjs/bullmq';
 import { NotificationConsumer } from './workers/notification.worker';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -109,6 +110,7 @@ import { NotificationConsumer } from './workers/notification.worker';
         BullModule.registerQueue({
             name: 'notifications-queue',
         }),
+        PrometheusModule.register(),
     ],
     controllers: [
         UsersController,

apps/auth-service/src/app.module.ts

@@ -4,6 +4,7 @@ import { MailModule } from './mail/mail.module';
 import { ConfigModule } from '@nestjs/config';
 import { configuration, validate } from '@leetcode/config';
 import { DatabaseModule } from '@leetcode/database';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -17,6 +18,7 @@ import { DatabaseModule } from '@leetcode/database';
         DatabaseModule,
         AuthModule,
         MailModule,
+        PrometheusModule.register(),
     ],
     controllers: [],
     providers: [],

apps/companies-service/src/app.module.ts

@@ -3,6 +3,7 @@ import { DatabaseModule } from '@leetcode/database';
 import { Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { CompaniesController } from './companies/companies.controller';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -14,6 +15,7 @@ import { CompaniesController } from './companies/companies.controller';
             validate,
         }),
         DatabaseModule,
+        PrometheusModule.register(),
     ],
     controllers: [CompaniesController],
     providers: [],

apps/execution-service/src/app.module.ts

@@ -5,6 +5,7 @@ import { Configuration, configuration, validate } from '@leetcode/config';
 import { DatabaseModule } from '@leetcode/database';
 import { ExecutionConsumer } from './execution/execution.worker';
 import { BullModule } from '@nestjs/bullmq';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -32,6 +33,7 @@ import { BullModule } from '@nestjs/bullmq';
         BullModule.registerQueue({
             name: 'results-queue',
         }),
+        PrometheusModule.register(),
     ],
     controllers: [],
     providers: [ExecutionService, ExecutionConsumer],

apps/problems-service/src/app.module.ts

@@ -4,6 +4,7 @@ import { DatabaseModule } from '@leetcode/database';
 import { ConfigModule } from '@nestjs/config';
 import { configuration, validate } from '@leetcode/config';
 import { ProblemsService } from './problems/problems.service';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -15,6 +16,7 @@ import { ProblemsService } from './problems/problems.service';
             validate,
         }),
         DatabaseModule,
+        PrometheusModule.register(),
     ],
     controllers: [ProblemsController],
     providers: [ProblemsService],

apps/submissions-service/src/app.module.ts

@@ -5,6 +5,7 @@ import { ConfigModule, ConfigService } from '@nestjs/config';
 import { Configuration, configuration, validate } from '@leetcode/config';
 import { BullModule } from '@nestjs/bullmq';
 import { ResultsConsumer } from './submissions/submissions.worker';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -32,6 +33,7 @@ import { ResultsConsumer } from './submissions/submissions.worker';
         BullModule.registerQueue({
             name: 'notifications-queue',
         }),
+        PrometheusModule.register(),
     ],
     controllers: [SubmissionsController],
     providers: [ResultsConsumer],

apps/tags-service/src/app.module.ts

@@ -3,6 +3,7 @@ import { DatabaseModule } from '@leetcode/database';
 import { Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { TagsController } from './tags/tags.controller';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -14,6 +15,7 @@ import { TagsController } from './tags/tags.controller';
             validate,
         }),
         DatabaseModule,
+        PrometheusModule.register(),
     ],
     controllers: [TagsController],
     providers: [],

apps/users-service/src/app.module.ts

@@ -3,6 +3,7 @@ import { UsersController } from './users/users.controller';
 import { DatabaseModule } from '@leetcode/database';
 import { ConfigModule } from '@nestjs/config';
 import { configuration, validate } from '@leetcode/config';
+import { PrometheusModule } from '@willsoto/nestjs-prometheus';
 
 @Module({
     imports: [
@@ -14,6 +15,7 @@ import { configuration, validate } from '@leetcode/config';
             validate,
         }),
         DatabaseModule,
+        PrometheusModule.register(),
     ],
     controllers: [UsersController],
     providers: [],

docker-compose.yml

@@ -329,6 +329,17 @@ services:
     #         - NODE_ENV=production
     #         - VITE_API_ENDPOINT=http://api-gateway:5000
 
+    # =======================================
+    #        PROMETHEUS + GRAFANA + LOKI
+    # =======================================
+
+    prometheus-server:
+        image: prom/prometheus
+        ports:
+            - 9090:9090
+        volumes:
+            - ./prometheus.yml:/etc/prometheus/prometheus.yml
+
 volumes:
     pgdata:
     redis-data:

package.json

@@ -20,7 +20,9 @@
     },
     "dependencies": {
         "@nestjs/microservices": "^11.1.8",
+        "@willsoto/nestjs-prometheus": "^6.0.2",
         "dotenv": "^17.2.3",
-        "dotenv-cli": "^11.0.0"
+        "dotenv-cli": "^11.0.0",
+        "prom-client": "^15.1.3"
     }
 }