init

main.py

@@ -0,0 +1,61 @@
+from fastapi import FastAPI, status
+from fastapi.encoders import jsonable_encoder
+from fastapi.exceptions import RequestValidationError, ResponseValidationError
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+from loguru import logger
+from starlette import requests
+from starlette.middleware.errors import ServerErrorMiddleware
+from starlette.requests import Request
+from starlette.types import ASGIApp
+
+from app.api import api_router
+
+app = FastAPI()
+
+
+# fix cors error when 500 occurs according to https://github.com/tiangolo/fastapi/issues/4071#issuecomment-950833326
+def global_execution_handler(request: requests.Request, exc: Exception) -> ASGIApp:
+    logger.exception(exc)
+    return JSONResponse(
+        status_code=status.HTTP_400_BAD_REQUEST,
+        content=f"Unknown Error: {exc.args[0]}",
+    )
+
+
+app.add_middleware(
+    ServerErrorMiddleware,
+    handler=global_execution_handler,
+)
+
+origins = [
+    '*'
+]
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(api_router, prefix="")
+
+
+@app.exception_handler(RequestValidationError)
+def validation_exception_handler(request: Request, exc: RequestValidationError):
+    logger.exception(exc)
+    return JSONResponse(
+        status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+        content=jsonable_encoder({"detail": exc.errors(), "body": exc.body}),
+    )
+
+
+@app.exception_handler(ResponseValidationError)
+def validation_exception_handler(request: Request, exc: ResponseValidationError):
+    logger.exception(exc)
+    return JSONResponse(
+        status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+        content=jsonable_encoder({"detail": exc.errors(), "body": exc.body}),
+    )