Create app.py

app.py

@@ -0,0 +1,32 @@
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+
+app = FastAPI()
+
+class CalculationRequest(BaseModel):
+    a: float
+    b: float
+    operation: str
+
+@app.post("/calculate")
+def calculate(request: CalculationRequest):
+    a = request.a
+    b = request.b
+    operation = request.operation.lower()
+
+    if operation == "add":
+        result = a + b
+    elif operation == "subtract":
+        result = a - b
+    elif operation == "multiply":
+        result = a * b
+    elif operation == "divide":
+        if b == 0:
+            raise HTTPException(status_code=400, detail="Division by zero is not allowed")
+        result = a / b
+    else:
+        raise HTTPException(status_code=400, detail="Invalid operation")
+
+    return {"result": result}
+
+# To run the application, use the command: uvicorn app.main:app --reload