New method of saving sessions to a file using worker

src/api/provider/sessions.ts

@@ -0,0 +1,140 @@
+import axios from 'axios';
+import { execSync } from 'child_process';
+
+import { ConfigService, ProviderSession } from '../../config/env.config';
+import { Logger } from '../../config/logger.config';
+
+type ResponseSuccess = { status: number; data?: any };
+type ResponseProvider = Promise<[ResponseSuccess?, Error?]>;
+
+export class ProviderFiles {
+  constructor(private readonly configService: ConfigService) {
+    this.baseUrl = `http://${this.config.HOST}:${this.config.PORT}/session`;
+  }
+
+  private readonly logger = new Logger(ProviderFiles.name);
+
+  private baseUrl: string;
+
+  private readonly config = Object.freeze(this.configService.get<ProviderSession>('PROVIDER'));
+
+  private readonly prefix = Object.freeze(this.configService.get<ProviderSession>('PROVIDER').PREFIX);
+
+  get isEnabled() {
+    return !!this.config?.ENABLED;
+  }
+
+  public async onModuleInit() {
+    if (this.config.ENABLED) {
+      const client = axios.create({
+        baseURL: this.baseUrl,
+      });
+      try {
+        const response = await client.options('/ping');
+        if (!response?.data?.pong) {
+          throw new Error('Offline file provider.');
+        }
+      } catch (error) {
+        this.logger.error(['Failed to connect to the file server', error?.message, error?.stack]);
+        const pid = process.pid;
+        execSync(`kill -9 ${pid}`);
+      }
+    }
+  }
+
+  public async onModuleDestroy() {
+    //
+  }
+
+  public async create(instance: string): ResponseProvider {
+    try {
+      const response = await axios.post(`${this.baseUrl}/${this.prefix}`, {
+        instance,
+      });
+      return [{ status: response.status, data: response?.data }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+
+  public async write(instance: string, key: string, data: any): ResponseProvider {
+    try {
+      const response = await axios.post(`${this.baseUrl}/${this.prefix}/${instance}/${key}`, data);
+      return [{ status: response.status, data: response?.data }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+
+  public async read(instance: string, key: string): ResponseProvider {
+    try {
+      const response = await axios.get(`${this.baseUrl}/${this.prefix}/${instance}/${key}`);
+      return [{ status: response.status, data: response?.data }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+
+  public async delete(instance: string, key: string): ResponseProvider {
+    try {
+      const response = await axios.delete(`${this.baseUrl}/${this.prefix}/${instance}/${key}`);
+      return [{ status: response.status, data: response?.data }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+
+  public async allInstances(): ResponseProvider {
+    try {
+      const response = await axios.get(`${this.baseUrl}/list-instances/${this.prefix}`);
+      return [{ status: response.status, data: response?.data as string[] }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+
+  public async removeSession(instance: string): ResponseProvider {
+    try {
+      const response = await axios.delete(`${this.baseUrl}/${this.prefix}/${instance}`);
+      return [{ status: response.status, data: response?.data }];
+    } catch (error) {
+      return [
+        {
+          status: error?.response?.status,
+          data: error?.response?.data,
+        },
+        error,
+      ];
+    }
+  }
+}