diff --git a/app/api/__init__.py b/app/api/__init__.py
index 739a3f0..37e97bc 100644
--- a/app/api/__init__.py
+++ b/app/api/__init__.py
@@ -3,4 +3,11 @@
 # @Author: markushammered@gmail.com
 # @Development Tool: PyCharm
 # @Create Time: 2022/4/9
-# @File Name: __init__.py.py
\ No newline at end of file
+# @File Name: __init__.py.py
+
+
+from flask import Blueprint
+
+api = Blueprint('api', __name__)
+
+from . import views, errors
diff --git a/app/api/errors.py b/app/api/errors.py
index 6041600..98dc2e4 100644
--- a/app/api/errors.py
+++ b/app/api/errors.py
@@ -3,4 +3,29 @@
 # @Author: markushammered@gmail.com
 # @Development Tool: PyCharm
 # @Create Time: 2022/4/9
-# @File Name: errors.py
\ No newline at end of file
+# @File Name: errors.py
+
+from . import api
+from flask import jsonify
+
+
+@api.errorhandler(404)
+def page_not_found(e):
+    return jsonify(
+        {
+            'code': 404,
+            'msg': '页面未找到',
+            'data': None
+        }
+    ), 404
+
+
+@api.errorhandler(500)
+def internal_server_error(e):
+    return jsonify(
+        {
+            'code': 500,
+            'msg': '服务器内部错误',
+            'data': None
+        }
+    ), 500
diff --git a/app/api/views.py b/app/api/views.py
index f8b7dbf..1625d8e 100644
--- a/app/api/views.py
+++ b/app/api/views.py
@@ -3,4 +3,94 @@
 # @Author: markushammered@gmail.com
 # @Development Tool: PyCharm
 # @Create Time: 2022/4/9
-# @File Name: views.py
\ No newline at end of file
+# @File Name: views.py
+
+
+from flask import jsonify
+from flask import request
+from ..db.db import SQLite as db
+from . import api
+
+
+@api.route('/overall/', methods=['GET', 'POST'])
+def overall():
+    limit = request.args.get('limit', type=int)
+    try:
+        data = db().exec('select * from reqcount;')
+        format_data = []
+        for i in data:
+            format_data.append({'name': i[0], 'times': i[1]})
+        return jsonify(
+            {
+                'code': 200,
+                'msg': 'Success. Total: %s row(s)' % len(data),
+                'data': format_data[:limit]
+            }
+        ), 200
+    except Exception as e:
+        return jsonify(
+            {
+                'code': -200,
+                'msg': 'Error',
+                'data': e
+            }
+        ), 500
+
+
+@api.route('/query/', methods=['GET', 'POST'])
+def query():
+    name = request.args.get('name', type=str)
+    nochange = request.args.get('nochange', type=bool)
+    if nochange:
+        nochange = True
+    if not db().exists_name(name):
+        return jsonify(
+            {
+                'code': -200,
+                'msg': 'Failed. No such name',
+                'data': None
+            }
+        ), 404
+    else:
+        data = db().fetch(name, nochange)
+        return jsonify(
+            {
+                'code': 200,
+                'msg': 'Success',
+                'data': data
+            }
+        ), 200
+
+
+@api.route('/theme/', methods=['GET', 'POST'])
+def theme():
+    _theme = request.args.get('name', type=str)
+    if not db().exists_table(_theme):
+        return jsonify(
+            {
+                'code': 404,
+                'msg': 'Failed. No such theme',
+                'data': None
+            }
+        ), 404
+    else:
+        data = db().fetching_table(_theme)
+        return jsonify(
+            {
+                'code': 200,
+                'msg': 'Success',
+                'data': data
+            }
+        ), 200
+
+
+@api.route('/alltables/', methods=['GET', 'POST'])
+def all_tables():
+    data = db().show_tables
+    return jsonify(
+        {
+            'code': 200,
+            'msg': 'Success',
+            'data': data
+        }
+    ), 200