Adding Sagar

README.md

@@ -1 +1,6 @@
-# software_engineering_essentials
+# Software Engineering Principles
+## Session #0
+1. Launch codespaces
+2. Install libraries using requirements.txt - **Dependency Management**
+3. Add json in “users” dir and serve locally 
+and create a new PR (checkout, add, commit, push) - **Git**

requirements.txt

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+Flask==2.3.3
+snakeviz==2.2.0
+pytest==7.4.2
+pytest-cov==4.1.0
+yapf==0.40.2
+names==0.3.0

server.py

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+from flask import Flask
+import json, os
+from typing import Dict, Any
+
+directory_path = "./users"
+
+app = Flask(__name__)
+
+styles = """
+    <style>
+        table {
+            border-collapse: collapse;
+        }
+        tr, td{
+            border: 1px solid black;
+            padding: 5px;
+            text-align: center;
+        }
+        body{
+        align: center
+        }
+    </style>
+"""
+
+def read_json_files_from_directory(directory_path: str):
+    """ Read JSON files from provided path and return dict in format of {user_id:user_info}"""
+    json_data: Dict[str, Any] = {}
+
+    try:
+        # Iterate through the files in the directory
+        for filename in os.listdir(directory_path):
+            if filename.endswith('.json'):
+                file_path = os.path.join(directory_path, filename)
+                with open(file_path, 'r') as file:
+                    # Read and parse the JSON data
+                    data = json.load(file)
+                    for user_info in data:
+                        json_data[user_info["user_id"]] = user_info
+    except FileNotFoundError:
+        print(f"Directory not found: {directory_path}")
+        return None
+    except json.JSONDecodeError as e:
+        print(f"Error decoding JSON: {e}")
+        return None
+
+    return json_data
+
+
+@app.route('/')
+def get_users():
+    """Renders a table of all users."""
+    user_objs = read_json_files_from_directory(directory_path)
+    response = ""
+    for person_id in user_objs:
+        response += f"""<tr><td><a href="/get_user/{person_id}">{person_id}</a></td></tr>"""
+    response = f"""{styles}<table>{response}</table>"""
+    return response, 200, {'Content-Type': 'text/html'}
+
+
+@app.route('/get_user/<string:person_id>', methods=['GET'])
+def get_user(person_id):
+    """Renders fields of a person with specified person_id."""
+    response = ""
+    user_objs = read_json_files_from_directory(directory_path)
+
+    if person_id in user_objs:
+        person_obj = user_objs[person_id]
+        response += f"<tr><td>User ID</td><td>{person_obj['user_id']}</td></tr>"
+        response += f"<tr><td>First Name</td><td>{person_obj['first_name']}</td></tr>"
+        response += f"<tr><td>Last Name</td><td>{person_obj['last_name']}</td></tr>"
+        response += f"""<tr><td>Friends</td><td>{",".join([f"<a href='/get_user/{p}'>{p}</a>" for p in person_obj['friends']])}</td></tr>"""
+        response = f"""{styles}<table>{response}</table>"""
+        return response, 200, {'Content-Type': 'text/html'}
+    else:
+        return f"User {person_id} not found."
+if __name__ == '__main__':
+    app.run()

users/21bec102.json

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+[
+  {
+    "user_id": "21bec102",
+    "first_name": "sagar",
+    "last_name": "ramani",
+    "friends": ["21bec085", "21bec100"]
+  }
+]

users/ENROLLMENT_ID.json

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+[
+    {
+      "user_id": "ENROLLMENT_ID",
+      "first_name": "User_First_Name",
+      "last_name": "User_Last_Name",
+      "friends": ["FRIEND_1_ENROLLMENT_ID", "FRIEND_2_ENROLLMENT_ID"]
+    }
+  ]