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HTML content

\" (optional)\n * }\n *\n * Example with curl:\n * curl -X POST https://[username]-emailsender.web.val.run \\\n * -H \"Content-Type: application/json\" \\\n * -d '{\"to\":\"test@example.com\",\"subject\":\"Hello\",\"text\":\"Test email\"}'\n */\n\nimport { email } from \"https://esm.town/v/std/email\";\n\nexport default async function (req: Request): Promise {\n // Handle CORS for browser requests\n if (req.method === \"OPTIONS\") {\n return new Response(null, {\n headers: {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"POST, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type\",\n },\n });\n }\n\n // Only accept POST requests\n if (req.method !== \"POST\") {\n return new Response(\n JSON.stringify({\n error: \"Method not allowed. Use POST.\",\n usage: {\n method: \"POST\",\n body: {\n to: \"recipient@example.com\",\n subject: \"Email subject\",\n text: \"Plain text content\",\n html: \"

HTML content

(optional)\",\n },\n },\n }),\n {\n status: 405,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n },\n );\n }\n\n try {\n // Parse request body\n const body = await req.json();\n\n // Validate required fields\n if (!body.to || !body.subject || !body.text) {\n return new Response(\n JSON.stringify({\n error: \"Missing required fields\",\n required: [\"to\", \"subject\", \"text\"],\n received: Object.keys(body),\n }),\n {\n status: 400,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n },\n );\n }\n\n // Validate email format (basic)\n const emailRegex = /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/;\n if (!emailRegex.test(body.to)) {\n return new Response(\n JSON.stringify({\n error: \"Invalid email address format\",\n provided: body.to,\n }),\n {\n status: 400,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n },\n );\n }\n\n // Prepare email options\n const emailOptions: any = {\n subject: body.subject,\n text: body.text,\n };\n\n // Add HTML if provided\n if (body.html) {\n emailOptions.html = body.html;\n }\n\n // Send email using Val Town's email service\n console.log(`Sending email to: ${body.to}`);\n console.log(`Subject: ${body.subject}`);\n\n await email(emailOptions);\n\n // Return success response\n return new Response(\n JSON.stringify({\n success: true,\n message: \"Email sent successfully\",\n details: {\n to: body.to,\n subject: body.subject,\n timestamp: new Date().toISOString(),\n },\n }),\n {\n status: 200,\n headers: {\n \"Content-Type\": \"application/json\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n },\n );\n } catch (error) {\n console.error(\"Error sending email:\", error);\n\n return new Response(\n JSON.stringify({\n success: false,\n error: \"Failed to send email\",\n details: error instanceof Error ? 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Diff · v3