logging

apps/api/src/application-info-log/application-info-logger.service.ts

@@ -0,0 +1,69 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { InjectRepository } from '@nestjs/typeorm';
+import { hostname } from 'node:os';
+import { Repository } from 'typeorm';
+import { sanitizeContext, sanitizeString } from '../application-error-log/application-error-sanitizer';
+import { RequestContextService } from '../common/request-context.service';
+import { ApplicationInfoLog } from './application-info-log.entity';
+import { ApplicationInfoLogInput } from './application-info-log.types';
+
+@Injectable()
+export class ApplicationInfoLoggerService {
+  private readonly fallbackLogger = new Logger(ApplicationInfoLoggerService.name);
+
+  constructor(
+    @InjectRepository(ApplicationInfoLog)
+    private readonly logs: Repository<ApplicationInfoLog>,
+    private readonly config: ConfigService,
+    private readonly requestContext: RequestContextService,
+  ) {}
+
+  async log(input: ApplicationInfoLogInput): Promise<void> {
+    const activeRequest = this.requestContext.get();
+    const request = { ...activeRequest, ...input.requestContext };
+
+    try {
+      await this.logs.save(
+        this.logs.create({
+          level: 'info',
+          action: sanitizeString(input.action),
+          category: optionalString(input.category),
+          outcome: input.outcome ?? 'SUCCESS',
+          message: optionalString(input.message),
+          actorType: input.actorType,
+          actorId: optionalString(input.actorId),
+          userId: optionalString(input.userId ?? request.userId),
+          clientId: optionalString(input.clientId),
+          tenantId: optionalString(input.tenantId ?? request.tenantId),
+          backendModule: optionalString(input.backendModule),
+          service: optionalString(input.service),
+          operation: optionalString(input.operation),
+          httpMethod: optionalString(request.method),
+          apiPath: optionalString(withoutQuery(request.path)),
+          httpStatusCode: input.requestContext?.statusCode,
+          correlationId: optionalString(request.correlationId),
+          ipAddress: optionalString(input.requestContext?.ipAddress),
+          userAgent: optionalString(input.requestContext?.userAgent),
+          environment: this.config.get<string>('NODE_ENV') ?? 'development',
+          host: hostname(),
+          context: sanitizeContext(input.context),
+        }),
+      );
+    } catch (error) {
+      const message = error instanceof Error ? error.message : String(error);
+      this.fallbackLogger.error(
+        `Application info log write failed for ${sanitizeString(input.action)}: ${sanitizeString(message)}`,
+        error instanceof Error ? error.stack : undefined,
+      );
+    }
+  }
+}
+
+function optionalString(value?: string): string | undefined {
+  return value ? sanitizeString(value) : undefined;
+}
+
+function withoutQuery(value?: string): string | undefined {
+  return value?.split('?', 1)[0];
+}