Initial commit: digital reception monorepo (M1-M11 + demo extensions)

apps/api/src/face/face.client.ts

@@ -0,0 +1,64 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+
+export interface RecognizeResult {
+  patient_id: string;
+  confidence: number;
+  distance: number;
+}
+
+@Injectable()
+export class FaceClient {
+  private readonly logger = new Logger(FaceClient.name);
+  private readonly baseUrl: string;
+
+  constructor(config: ConfigService) {
+    this.baseUrl = config.getOrThrow<string>('FACE_SERVICE_URL');
+  }
+
+  async recognize(frameBase64: string): Promise<RecognizeResult | null> {
+    const res = await fetch(`${this.baseUrl}/recognize`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ frame: frameBase64 }),
+    });
+    if (!res.ok) {
+      this.logger.warn(`face-service /recognize failed: ${res.status}`);
+      return null;
+    }
+    const json = (await res.json()) as RecognizeResult | null;
+    return json;
+  }
+
+  async enrollTrack(trackId: string, patientId: string): Promise<number> {
+    const res = await fetch(`${this.baseUrl}/enroll`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ track_id: trackId, patient_id: patientId }),
+    });
+    if (!res.ok) {
+      throw new Error(`face-service /enroll failed: ${res.status}`);
+    }
+    const json = (await res.json()) as { embeddings_attached: number };
+    return json.embeddings_attached;
+  }
+
+  async deletePatientEmbeddings(patientId: string): Promise<number> {
+    const res = await fetch(`${this.baseUrl}/patient/${patientId}/embeddings`, {
+      method: 'DELETE',
+    });
+    if (!res.ok) {
+      this.logger.warn(`face-service DELETE /patient/.../embeddings failed: ${res.status}`);
+      return 0;
+    }
+    const json = (await res.json()) as { deleted: number };
+    return json.deleted;
+  }
+
+  async countPatientEmbeddings(patientId: string): Promise<number> {
+    const res = await fetch(`${this.baseUrl}/patient/${patientId}/count`);
+    if (!res.ok) return 0;
+    const json = (await res.json()) as { count: number };
+    return json.count;
+  }
+}

apps/api/src/face/face.module.ts

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+import { Global, Module } from '@nestjs/common';
+import { FaceClient } from './face.client';
+
+@Global()
+@Module({
+  providers: [FaceClient],
+  exports: [FaceClient],
+})
+export class FaceModule {}