Simple-FastAPI-backend/backend.py at master · Devknight10/Simple-FastAPI-backend · GitHub

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from fastapi import FastAPI
from pydantic import BaseModel
from datetime import datetime

app = FastAPI(
    title="Student Management API",
    description="A simple FastAPI backend",
    version="1.0"
)

# -----------------------------
# In-memory storage
# -----------------------------
students = []
request_count = 0


# -----------------------------
# Data Model
# -----------------------------
class Student(BaseModel):
    name: str
    department: str


# -----------------------------
# Home Endpoint
# -----------------------------
@app.get("/")
def home():
    return {
        "status": "success",
        "message": "Student Management API is running 🚀",
        "documentation": "http://127.0.0.1:8000/docs"
    }


# -----------------------------
# Add Student
# -----------------------------
@app.post("/student")
def create_student(data: Student):
    global request_count

    request_count += 1

    student = {
        "id": len(students) + 1,
        "name": data.name,
        "department": data.department,
        "created_at": datetime.now().strftime("%d-%m-%Y %H:%M:%S")
    }

    students.append(student)

    return {
        "status": "success",
        "message": "Student added successfully",
        "request_number": request_count,
        "student": student
    }


# -----------------------------
# Welcome Response
# -----------------------------
@app.post("/response")
def generate_response(data: Student):
    global request_count

    request_count += 1

    return {
        "status": "success",
        "message": f"Welcome, {data.name}!",
        "department": data.department,
        "request_number": request_count,
        "timestamp": datetime.now().strftime("%d-%m-%Y %H:%M:%S")
    }


# -----------------------------
# Get All Students
# -----------------------------
@app.get("/students")
def get_students():
    return {
        "status": "success",
        "total_students": len(students),
        "students": students
    }


# -----------------------------
# Get Student by ID
# -----------------------------
@app.get("/student/{student_id}")
def get_student(student_id: int):

    for student in students:
        if student["id"] == student_id:
            return {
                "status": "success",
                "student": student
            }

    return {
        "status": "error",
        "message": "Student not found"
    }


# -----------------------------
# API Statistics
# -----------------------------
@app.get("/stats")
def stats():
    return {
        "status": "success",
        "total_requests": request_count,
        "total_students": len(students),
        "server_time": datetime.now().strftime("%d-%m-%Y %H:%M:%S")
    }
# -----------------------------
# Delete student by id
# -----------------------------
@app.delete("/student/{student_id}")
def delete_student(student_id: int):
    global students

    for i, student in enumerate(students):
        if student["id"] == student_id:
            students.pop(i)
            return {
                "status": "success",
                "message": "Student deleted successfully"
            }

    return {
        "status": "error",
        "message": "Student not found"
    }