Ajout d'un système de cache des

requêtes HTTP

Front/skydivelogs-app/src/services/request-cache.service.ts

@@ -0,0 +1,35 @@
+import { Injectable } from "@angular/core";
+import { HttpRequest, HttpResponse } from "@angular/common/http";
+
+const maxAge = 30000;
+@Injectable()
+export class RequestCache {
+  cache = new Map();
+
+  get(req: HttpRequest<any>): HttpResponse<any> | undefined {
+    const url = req.urlWithParams + "-" + req.method;
+    const cached = this.cache.get(url);
+
+    if (!cached) {
+      return undefined;
+    }
+
+    return cached.response;
+  }
+
+  put(req: HttpRequest<any>, response: HttpResponse<any>): void {
+    //const url = req.url;
+    const url = req.urlWithParams + "-" + req.method;
+    const entry = { url, response, lastRead: Date.now() };
+    this.cache.set(url, entry);
+
+    console.log(this.cache);
+
+    const expired = Date.now() - maxAge;
+    this.cache.forEach(expiredEntry => {
+      if (expiredEntry.lastRead < expired) {
+        this.cache.delete(expiredEntry.url);
+      }
+    });
+  }
+}