feat(frontend): 🚧 CRUD Functionality

frontend/api/class-interfaces/_base.ts

@@ -1,10 +1,49 @@
 import { ApiRequestInstance } from "~/types/api";
 
-export class BaseAPIClass {
-    requests: ApiRequestInstance
-    
-    constructor(requests: ApiRequestInstance) {
-        this.requests = requests;
-    }
+export interface CrudAPIInterface {
+  requests: ApiRequestInstance;
+
+  // Route Properties / Methods
+  baseRoute: string;
+  itemRoute(itemId: string): string;
+
+  // Methods
 }
 
+export abstract class BaseAPIClass<T> implements CrudAPIInterface {
+  requests: ApiRequestInstance;
+
+  abstract baseRoute: string;
+  abstract itemRoute(itemId: string): string;
+
+  constructor(requests: ApiRequestInstance) {
+    this.requests = requests;
+  }
+
+  async getAll(start = 0, limit = 9999) {
+    return await this.requests.get<T[]>(this.baseRoute, {
+      params: { start, limit },
+    });
+  }
+
+  async getOne(itemId: string) {
+    return await this.requests.get<T>(this.itemRoute(itemId));
+  }
+
+  async createOne(payload: T) {
+    return await this.requests.post(this.baseRoute, payload);
+  }
+  
+  async updateOne(itemId: string, payload: T){
+    return await this.requests.put<T>(this.itemRoute(itemId), payload);
+  }
+
+  async patchOne(itemId: string, payload: T) {
+    return await this.requests.patch(this.itemRoute(itemId), payload);
+  }
+
+  async deleteOne(itemId: string) {
+    return await this.requests.delete<T>(this.itemRoute(itemId));
+  }
+
+}