added get_posts endpoint

modules/Archive/endpoints/get_posts.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+import json
+from flask_restful import Resource
+from flask import current_app as app, jsonify, request
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from modules.Archive.database import Database
+
+class Archive_GetPosts(Resource):
+    def get(self):
+        db : Database = app.databases["Archive"]
+        try:
+            count = int(request.args["count"]) if "count" in request.args else 10
+            last_id = int(request.args["last_id"]) if "last_id" in request.args else -1
+        except:
+            response = app.response_class(status=400)
+            response.headers.add("Access-Control-Allow-Origin", "*")
+            return response   
+
+        param = []
+        if "undecided" in request.args:
+            param.append(0)
+        if "approved" in request.args:
+            param.append(1)
+        if "denied" in request.args:
+            param.append(2)
+        if param == []:
+            param = [0,1,2]
+
+        result = db.get_posts(count, param, last_id)
+
+        if result is None:
+            response = app.response_class(status=400)
+        else:
+            response = app.response_class(
+                response=json.dumps(result, ensure_ascii=False, indent=1),
+                status=200,
+                mimetype='application/json'
+            )
+
+        response.headers.add("Access-Control-Allow-Origin", "*")
+        return response