PDF ⇄ HTML Converter

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\n \n \n\n`;\n\n return c.html(html);\n});\n\n// API endpoint for PDF processing (PDF to HTML)\napp.post(\"/api/process-pdf\", async (c) => {\n try {\n const formData = await c.req.formData();\n const file = formData.get(\"pdf\") as File;\n const fieldsToExtract = formData.get(\"fields\") as string;\n const outputFormat = formData.get(\"format\") as string || \"html\";\n const orgName = formData.get(\"orgName\") as string || \"Prasham\";\n const templateName = formData.get(\"templateName\") as string || \"\";\n const recreateTemplate = formData.get(\"recreateTemplate\") === \"true\";\n\n if (!file) {\n return c.json({ error: \"No PDF file provided\" }, 400);\n }\n\n if (file.type !== \"application/pdf\") {\n return c.json({ error: \"File must be a PDF\" }, 400);\n }\n\n if (file.size > 10 * 1024 * 1024) { // 10MB limit\n return c.json({ error: \"File size must be less than 10MB\" }, 400);\n }\n\n // Convert file to base64\n const arrayBuffer = await file.arrayBuffer();\n const base64Data = btoa(String.fromCharCode(...new Uint8Array(arrayBuffer)));\n\n // Parse fields to extract (default to all if not specified)\n let fields: string[] = [\n \"InvoiceFrom\",\n \"InvoiceTo\",\n \"PaidBy\",\n \"PaidTo\",\n \"Amount\",\n \"Currency\",\n \"InvoiceDate\",\n \"PaidDate\",\n \"LineItems\",\n ];\n\n if (fieldsToExtract) {\n try {\n fields = JSON.parse(fieldsToExtract);\n } catch (e) {\n return c.json({ error: \"Invalid fields format. Must be JSON array.\" }, 400);\n }\n }\n\n const request: ProcessingRequest = {\n pdfBase64: base64Data,\n fieldsToExtract: fields,\n outputFormat: outputFormat as \"html\" | \"json\",\n orgName,\n templateName,\n recreateTemplate,\n };\n\n // Process PDF with Claude\n const result = await processPDFWithClaude(request);\n\n const response: ProcessingResponse = {\n success: true,\n extractedData: result.extractedData,\n htmlOutput: result.htmlOutput,\n processingTime: result.processingTime,\n tokenUsage: result.tokenUsage,\n templateName: result.templateName,\n fromCache: result.fromCache,\n };\n\n return c.json(response);\n } catch (error) {\n console.error(\"PDF processing error:\", error);\n\n const response: ProcessingResponse = {\n success: false,\n error: error instanceof Error ? error.message : \"Unknown error occurred\",\n processingTime: 0,\n };\n\n return c.json(response, 500);\n }\n});\n\n// API endpoint for HTML to PDF conversion\napp.post(\"/api/html-to-pdf\", async (c) => {\n try {\n const body = await c.req.json();\n const { html, filename, orgName, options } = body as HtmlToPdfRequest;\n\n if (!html || typeof html !== 'string') {\n return c.json({ error: \"HTML content is required and must be a string\" }, 400);\n }\n\n if (html.length > 5 * 1024 * 1024) { // 5MB limit for HTML content\n return c.json({ error: \"HTML content is too large (max 5MB)\" }, 400);\n }\n\n const request: HtmlToPdfRequest = {\n html,\n filename,\n orgName: orgName || \"Default\",\n options,\n };\n\n // Process HTML to PDF\n const { blobKey } = await processHtmlToPdf(request);\n\n // Generate download URL (if needed)\n const downloadUrl = `${import.meta.url}/api/download-pdf/${encodeURIComponent(blobKey)}`;\n\n \n\n return c.json({blobKey,downloadUrl});\n } catch (error) {\n console.error(error)\n console.error(\"HTML to PDF conversion error:\", error);\n\n const response: HtmlToPdfResponse = {\n success: false,\n filename: \"\",\n blobKey: \"\",\n fileSize: 0,\n processingTime: 0,\n error: error instanceof Error ? error.message : \"Unknown error occurred\",\n };\n\n return c.json(response, 500);\n }\n});\n\n// API endpoint for downloading generated PDFs\napp.get(\"/api/download-pdf/:blobKey\", async (c) => {\n try {\n const blobKey = decodeURIComponent(c.req.param(\"blobKey\"));\n \n // Get PDF from blob storage\n const pdfData = await getBlob(blobKey);\n \n if (!pdfData) {\n return c.json({ error: \"PDF not found\" }, 404);\n }\n\n // Extract filename from blob key\n const filename = blobKey.split('/').pop() || 'download.pdf';\n\n // Return PDF with proper headers\n return new Response(pdfData, {\n headers: {\n 'Content-Type': 'application/pdf',\n 'Content-Disposition': `attachment; filename=\"${filename}\"`,\n 'Content-Length': pdfData.length.toString(),\n },\n });\n } catch (error) {\n console.error(\"PDF download error:\", error);\n return c.json({ error: \"Failed to download PDF\" }, 500);\n }\n});\n\n// API endpoint for configuration\napp.get(\"/api/config\", (c) => {\n return c.json({\n availableFields: [\n \"InvoiceFrom\",\n \"InvoiceTo\",\n \"PaidBy\",\n \"PaidTo\",\n \"Amount\",\n \"Currency\",\n \"InvoiceDate\",\n \"PaidDate\",\n \"LineItems\",\n ],\n supportedFormats: [\"html\", \"json\"],\n limits: {\n maxFileSize: 10 * 1024 * 1024,\n maxHtmlSize: 5 * 1024 * 1024,\n supportedTypes: [\"application/pdf\"],\n },\n defaults: {\n orgName: \"Prasham\",\n recreateTemplate: false,\n },\n pdfOptions: {\n formats: [\"A4\", \"Letter\", \"Legal\"],\n orientations: [\"portrait\", \"landscape\"],\n defaultMargin: \"1cm\",\n },\n });\n});\n\nexport default app.fetch; // This is the entry point for HTTP vals","deleted","label","prashamtrivedi-pdftohtml-ai",[169,150],"backend","permalink","https://www.val.town/x/prashamtrivedi/pdf-to-html/code/backend/index.ts","extension","actionData","errors"]