47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
from fastapi import APIRouter, HTTPException
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from fastapi.responses import RedirectResponse
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from sqlalchemy.exc import IntegrityError
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from app.db import database
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from app.models import Url
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from app.schemas import UrlPayload
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from app.services import encoder
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router = APIRouter()
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@router.get("/{shortcode}")
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async def redirect_to_original_url(shortcode: str):
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if not encoder.is_valid(shortcode):
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raise HTTPException(status_code=400, detail="Shortcode is not valid")
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query = Url.__table__.select().where(Url.shortcode == shortcode)
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url_result = await database.fetch_one(query)
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if url_result:
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return RedirectResponse(url=url_result.url, status_code=302)
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else:
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raise HTTPException(status_code=404, detail="Shortcode not found")
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@router.post("/shorten")
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async def create_url_shortcode(url_payload: UrlPayload):
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original_url = str(url_payload.url)
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query = "SELECT nextval('urls_id_seq')"
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next_id = await database.fetch_val(query)
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shortcode = encoder.encode(next_id)
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try:
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query = Url.__table__.insert().values({
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"id": next_id,
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"url": original_url,
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"shortcode": shortcode
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})
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await database.execute(query)
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return {"shortcode": shortcode, "original_url": original_url}
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except IntegrityError as e:
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if 'shortcode' in str(e):
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raise HTTPException(status_code=409, detail="Shortcode already in use")
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else:
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raise HTTPException(status_code=500, detail="Internal Server Error") |