diff --git a/docker-compose.yml b/docker-compose.yml
index bbcca62..9eef731 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,6 +9,7 @@ services:
       DATABASE_URL: ${DATABASE_URL}
       CORS_ALLOWED_ORIGINS: ${CORS_ALLOWED_ORIGINS}
       INGEST_API_KEY: ${INGEST_API_KEY}
+      INGEST_DEBUG_LOG: ${INGEST_DEBUG_LOG:-}
       CURRENT_EVENTS_POLL_MS: ${CURRENT_EVENTS_POLL_MS}
     expose:
       - "3101"
diff --git a/src/ingest/ingest.controller.ts b/src/ingest/ingest.controller.ts
index befcc55..72d1a58 100644
--- a/src/ingest/ingest.controller.ts
+++ b/src/ingest/ingest.controller.ts
@@ -1,4 +1,5 @@
-import { Body, Controller, Param, Post, UseGuards } from '@nestjs/common';
+import { Body, Controller, Logger, Param, Post, Req, UseGuards } from '@nestjs/common';
+import type { Request } from 'express';
 import { IngestApiKeyGuard } from '../common/ingest-api-key.guard';
 import { IngestEdgeValuesDto } from './dto/ingest-edge-values.dto';
 import { IngestPointDto } from './dto/ingest-point.dto';
@@ -7,17 +8,37 @@ import { IngestService } from './ingest.service';
 @Controller('ingest')
 @UseGuards(IngestApiKeyGuard)
 export class IngestController {
+  private readonly logger = new Logger(IngestController.name);
+
   constructor(private readonly ingest: IngestService) {}
 
-  /** Принимает одну сырую точку и сохраняет ее как запись истории/current. */
   @Post()
-  ingestPoint(@Body() point: IngestPointDto) {
+  ingestPoint(@Body() point: IngestPointDto, @Req() request: Request) {
+    this.logIngestRequest(request, {
+      kind: 'point',
+      edge: point.edge,
+      tag: point.tag,
+      timestamp: point.timestamp,
+    });
+
     return this.ingest.ingestPoint(point);
   }
 
-  /** Принимает компактное тело запроса по edge и сохраняет каждое значение построчно. */
   @Post(':edge')
-  ingestEdgeValues(@Param('edge') edge: string, @Body() body: IngestEdgeValuesDto) {
+  ingestEdgeValues(
+    @Param('edge') edge: string,
+    @Body() body: IngestEdgeValuesDto,
+    @Req() request: Request,
+  ) {
+    const tags = Object.keys(body.values);
+    this.logIngestRequest(request, {
+      kind: 'edge-values',
+      edge,
+      tagCount: tags.length,
+      firstTags: tags.slice(0, 5),
+      timestamp: body.timestamp,
+    });
+
     const points = Object.entries(body.values).map(([tag, value]) => ({
       edge,
       tag,
@@ -27,4 +48,33 @@ export class IngestController {
 
     return this.ingest.ingestPoints(points);
   }
+
+  private logIngestRequest(
+    request: Request,
+    payload: Record<string, unknown>,
+  ): void {
+    if (!this.isDebugLogEnabled()) {
+      return;
+    }
+
+    this.logger.log({
+      event: 'ingest.received',
+      method: request.method,
+      url: request.originalUrl,
+      host: request.get('host'),
+      ip: request.ip,
+      remoteAddress: request.socket.remoteAddress,
+      forwardedFor: request.get('x-forwarded-for'),
+      realIp: request.get('x-real-ip'),
+      userAgent: request.get('user-agent'),
+      contentLength: request.get('content-length'),
+      ...payload,
+    });
+  }
+
+  private isDebugLogEnabled(): boolean {
+    return ['1', 'true', 'yes', 'on'].includes(
+      (process.env.INGEST_DEBUG_LOG ?? '').toLowerCase(),
+    );
+  }
 }