Returning FileResponse is solved my problem. Thanks to @Paul H and @clmno
Below codes are working example of returning pdf file to download with FastApi.
from typing import Optional
from fastapi import FastAPI
from starlette.responses import FileResponse
import pdfkit
app = FastAPI()
config = pdfkit.configuration(wkhtmltopdf=r"C:\Program Files\wkhtmltopdf\bin\wkhtmltopdf.exe")
@app.get("/")
def read_root():
pdfkit.from_url("https://nakhal.expo.com.tr/nakhal/preview","file.pdf", configuration=config)
return FileResponse(
"file.pdf",
media_type="application/pdf",
filename="ticket.pdf")
**2)**This is another way with using tempfiles – to add pdf to a variable just write False instead of path –
from typing import Optional
from fastapi import FastAPI
from starlette.responses import FileResponse
import tempfile
import pdfkit
app = FastAPI()
config = pdfkit.configuration(wkhtmltopdf=r"C:\Program Files\wkhtmltopdf\bin\wkhtmltopdf.exe")
@app.get("/")
def read_root():
pdf = pdfkit.from_url("https://nakhal.expo.com.tr/nakhal/preview",False, configuration=config)
with tempfile.NamedTemporaryFile(mode="w+b", suffix=".pdf", delete=False) as TPDF:
TPDF.write(pdf)
return FileResponse(
TPDF.name,
media_type="application/pdf",
filename="ticket.pdf")