Update app.py
Browse files
app.py
CHANGED
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@@ -1,7 +1,86 @@
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from fastapi import FastAPI
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app = FastAPI()
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@app.get("/")
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def greet_json():
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return {"Hello": "World!"}
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from fastapi import FastAPI, HTTPException
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from fastapi.responses import Response
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from fastapi.middleware.cors import CORSMiddleware
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from pydantic import BaseModel
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from weasyprint import HTML, CSS
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from io import BytesIO
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import base64
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app = FastAPI()
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# Configura CORS para permitir requisições do frontend
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"], # Em produção, especifique os domínios permitidos
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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class PDFRequest(BaseModel):
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html: str
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css: str = ""
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orientation: str = "portrait" # portrait or landscape
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@app.get("/")
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def greet_json():
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return {"Hello": "World!"}
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@app.post("/generate-pdf")
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async def generate_pdf(request: PDFRequest):
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try:
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# Combina HTML e CSS
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html_content = request.html
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css_content = request.css
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# Se o HTML não tem tag <style>, adiciona o CSS
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if css_content and "<style>" not in html_content:
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# Insere o CSS antes do </head> ou no início do body
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if "</head>" in html_content:
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html_content = html_content.replace("</head>", f"<style>{css_content}</style></head>")
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elif "<body>" in html_content:
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html_content = html_content.replace("<body>", f"<body><style>{css_content}</style>")
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else:
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html_content = f"<style>{css_content}</style>{html_content}"
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# Gera o PDF usando WeasyPrint
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pdf_buffer = BytesIO()
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# Configura orientação
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if request.orientation == "landscape":
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# Para landscape, ajusta o tamanho da página
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html_doc = HTML(string=html_content)
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css_doc = CSS(string=f"""
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@page {{
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size: A4 landscape;
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margin: 0;
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}}
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{css_content}
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""")
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html_doc.write_pdf(pdf_buffer, stylesheets=[css_doc])
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else:
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# Portrait (padrão)
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html_doc = HTML(string=html_content)
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css_doc = CSS(string=f"""
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@page {{
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size: A4;
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margin: 0;
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}}
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{css_content}
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""")
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html_doc.write_pdf(pdf_buffer, stylesheets=[css_doc])
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pdf_buffer.seek(0)
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pdf_bytes = pdf_buffer.read()
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# Retorna o PDF como resposta
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return Response(
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content=pdf_bytes,
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media_type="application/pdf",
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headers={
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"Content-Disposition": "attachment; filename=documento.pdf"
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}
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)
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Erro ao gerar PDF: {str(e)}")
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