G_ETL(s): AI Data Transfer Function

Using OpenAI as a Serverless Transformation Engine.

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1. Input Signal: Raw Data (D_Raw)

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2. Output Response: BI-Ready Data (D_BI)

Awaiting transformation...

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\n\n\n\n`;\n}\n\n// --- API ROUTING & LOGIC ---\nconst app = new Hono();\nconst openai = new OpenAI();\n\n// Middleware to ensure database is ready\napp.use(\"*\", async (c, next) => {\n await initializeDatabase();\n await next();\n});\n\n// Endpoint to receive raw data, transform it, and load it into the database\napp.post(\"/transform\", async (c) => {\n const { rawData } = await c.req.json<{ rawData: string }>();\n if (!rawData) {\n return c.json({ error: \"rawData field is required\" }, 400);\n }\n\n // This is the core of the \"Transfer Function\" G_ETL(s)\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: DATA_TRANSFORM_PROMPT },\n { role: \"user\", content: rawData },\n ],\n temperature: 0.1, // Low temperature for deterministic, precise output\n response_format: { type: \"json_object\" },\n });\n\n const aiResult: AIResponse = JSON.parse(completion.choices[0].message.content);\n\n if (aiResult.status === \"REJECTED\" || !aiResult.event) {\n return c.json({\n rejectionReason: aiResult.rejectionReason || \"AI rejected input without a reason.\",\n }, 422); // Unprocessable Entity\n }\n\n // If transformation is successful, load the data into SQLite\n const { event } = aiResult;\n try {\n await sqlite.execute({\n sql: `\n INSERT INTO transformed_events (event_type, user_identifier, event_timestamp, raw_data_input, structured_data)\n VALUES (:eventType, :userIdentifier, :timestamp, :rawData, :structuredData)\n `,\n args: {\n eventType: event.eventType,\n userIdentifier: event.user.email || event.user.userId,\n timestamp: event.timestamp,\n rawData: rawData,\n structuredData: JSON.stringify(event),\n },\n });\n return c.json(event);\n } catch (dbError) {\n console.error(\"Database Load Error:\", dbError);\n return c.json({ error: \"Failed to load transformed data into the database.\", details: dbError.message }, 500);\n }\n});\n\n// Endpoint to query the transformed data (\"Data Warehouse\")\napp.get(\"/events\", async (c) => {\n const { results } = await sqlite.execute(\n \"SELECT event_type, user_identifier, event_timestamp FROM transformed_events ORDER BY id DESC LIMIT 50\",\n );\n return c.json(results);\n});\n\n// Serve the main HTML page\napp.get(\"/\", (c) => {\n const sourceUrl = new URL(c.req.url).origin + new URL(c.req.url).pathname;\n return c.html(generateHtml(sourceUrl));\n});\n\nexport default app.fetch;","deleted","label","etl",[108],"pulls","branches",1,"forks","envVars",{"_132":41,"_134":41},"connections",{"_132":41,"_133":41},"count","unfilledCount","emptyCount",{"_18":107,"_20":108,"_109":35,"_110":-5,"_111":67,"_112":65,"_113":37,"_22":136,"_64":115,"_116":117,"_118":119,"_120":26,"_121":122,"_137":138,"_84":139},["D",1754451100426],"children",[],[108],["D",1754451052438],{"_16":17,"_82":78},{"_16":17,"_76":-5,"_77":78,"_32":33,"_79":80,"_81":26},{"_64":65,"_20":66,"_18":67,"_68":19,"_69":-5,"_70":-5,"_71":-5,"_72":-5,"_73":-5,"_74":21,"_75":17},"ctx",{"_57":-5,"_103":177,"_178":179,"_180":181,"_182":26,"_183":26,"_184":26,"_185":37,"_186":-5,"_187":-7,"_188":-7,"_189":41,"_190":26,"_191":26,"_192":-5,"_193":26,"_194":26,"_195":26,"_196":-5},"ENV",{"_148":149,"_150":151,"_152":66,"_153":154,"_155":156,"_157":158,"_159":160,"_161":162,"_163":164,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","71c1b20804b3232a7e513be260cfffc1932a9e97","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

GETL(s): AI Data Transfer Function

1. Input Signal: Raw Data (DRaw)

2. Output Response: BI-Ready Data (DBI)

G_ETL(s): AI Data Transfer Function

1. Input Signal: Raw Data (D_Raw)

2. Output Response: BI-Ready Data (D_BI)

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