Below api took too long to respond(more than 1 minute) in swagger, but the print statement print(len(doc)) prints instantly.
# pip install fastapi
# fastapi dev main.py
from fastapi import FastAPI
from typing import Any, Dict
app = FastAPI()
@app.post("/fast")
async def root(data:Dict[Any,Any]):
doc = data['doc']
print(len(doc)) # 1459305
return {"success":len(doc)}
request body:
{"doc":"JVBERi0xLjMgCjEgMCBvYmoKPDwK..<-- 1459305 total chars-- >.Tk2MzU1NTM4OTY4NGIzYTBlNjIwZjA+XQo+PgpzdGFydHhyZWYKMTA5MzMzNQolJUVPRgo="
I am expecting the response very quickly
the request is slow because i run it in FastAPI - Swagger UI(http://localhost:8000/docs).
the response is fast when i run in the post man.
you can also disable the swagger curl response: https://github.com/tiangolo/fastapi/discussions/3853
import json
from typing import Optional, Dict, Any
from fastapi import FastAPI
from fastapi.encoders import jsonable_encoder
from starlette.responses import HTMLResponse
from fastapi.staticfiles import StaticFiles
app = FastAPI(docs_url=None, redoc_url=None)
app.mount("/static", StaticFiles(directory="static"), name="static")
def get_swagger_ui_html(
*,
openapi_url: str,
title: str,
swagger_js_url: str = "https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-bundle.js",
swagger_css_url: str = "https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui.css",
swagger_favicon_url: str = "https://fastapi.tiangolo.com/img/favicon.png",
oauth2_redirect_url: Optional[str] = None,
init_oauth: Optional[Dict[str, Any]] = None,
) -> HTMLResponse:
html = f"""
<!DOCTYPE html>
<html>
<head>
<link type="text/css" rel="stylesheet" href="{swagger_css_url}">
<link rel="shortcut icon" href="{swagger_favicon_url}">
<title>{title}</title>
</head>
<body>
<div id="swagger-ui">
</div>
<script src="{swagger_js_url}"></script>
<!-- `SwaggerUIBundle` is now available on the page -->
<script>
const HideCurlPlugin = () => {{
return {{
wrapComponents: {{
curl: () => () => null
}}
}}
}}
const ui = SwaggerUIBundle({{
url: '{openapi_url}',
plugins: [
HideCurlPlugin
],
"""
if oauth2_redirect_url:
html += f"oauth2RedirectUrl: window.location.origin + '{oauth2_redirect_url}',"
html += """
dom_id: '#swagger-ui',
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIBundle.SwaggerUIStandalonePreset
],
layout: "BaseLayout",
deepLinking: true,
showExtensions: true,
showCommonExtensions: true
})"""
if init_oauth:
html += f"""
ui.initOAuth({json.dumps(jsonable_encoder(init_oauth))})
"""
html += """
</script>
</body>
</html>
"""
return HTMLResponse(html)
@app.get("/docs", include_in_schema=False)
async def custom_swagger_ui_html():
return get_swagger_ui_html(
openapi_url=app.openapi_url,
title=app.title + " - Swagger UI",
oauth2_redirect_url=app.swagger_ui_oauth2_redirect_url,
swagger_js_url="/static/swagger-ui-bundle.js",
swagger_css_url="/static/swagger-ui.css",
)
@app.get("/users/{username}")
async def read_user(username: str):
return {"message": f"Hello {username}"}