\n \n \n \n ${img}\n \n \n \n

Back of the Can

${post.title}

Hi {{ first_name|default:'there' }},

${post.teaser}...

\n Read the full article\n

\n \n \n

Life Blood, Aberdeen. Real kombucha, no artificial sweeteners.
\n Unsubscribe\n

\n`;\n}\n\nasync function sendTeaser(post: { title: string; teaser: string; url: string; image: string }) {\n const audience = Deno.env.get(\"KLAVIYO_TEST_AUDIENCE_ID\");\n const fromEmail = Deno.env.get(\"FROM_EMAIL\");\n const fromLabel = Deno.env.get(\"FROM_LABEL\") ?? \"Life Blood\";\n const replyTo = Deno.env.get(\"REPLY_TO_EMAIL\") ?? fromEmail;\n if (!audience) throw new Error(\"Missing KLAVIYO_TEST_AUDIENCE_ID secret (set it to your testing list)\");\n if (!fromEmail) throw new Error(\"Missing FROM_EMAIL secret\");\n\n const tpl = await kFetch(\"/templates/\", \"POST\", {\n data: { type: \"template\", attributes: {\n name: `TEST Blog teaser - ${post.title}`.slice(0, 100),\n editor_type: \"CODE\", html: teaserHtml(post),\n } },\n });\n const templateId = tpl.data.id;\n\n const campaign = await kFetch(\"/campaigns/\", \"POST\", {\n data: { type: \"campaign\", attributes: {\n name: `TEST Blog teaser - ${new Date().toISOString().slice(0, 16)}`.slice(0, 100),\n audiences: { included: [audience], excluded: [] },\n send_strategy: { method: \"immediate\" },\n send_options: { use_smart_sending: false }, // OFF for testing so it always sends\n \"campaign-messages\": { data: [{ type: \"campaign-message\", attributes: { definition: {\n channel: \"email\", label: \"Blog teaser\", content: {\n subject: post.title,\n preview_text: `${post.teaser.slice(0, 120)}...`,\n from_email: fromEmail, from_label: fromLabel, reply_to_email: replyTo,\n },\n } } }] },\n } },\n });\n const campaignId = campaign.data.id;\n\n const messages = await kFetch(`/campaigns/${campaignId}/campaign-messages/`, \"GET\");\n const messageId = messages.data[0].id;\n\n await kFetch(\"/campaign-message-assign-template/\", \"POST\", {\n data: { type: \"campaign-message\", id: messageId,\n relationships: { template: { data: { type: \"template\", id: templateId } } } },\n });\n\n await kFetch(\"/campaign-send-jobs/\", \"POST\", {\n data: { type: \"campaign-send-job\", id: campaignId },\n });\n}\n\n// Runs immediately when you click Run (top-level, no wrapper to forget to call).\nconst xml = await (await fetch(FEED_URL)).text();\nconst parser = new XMLParser({ ignoreAttributes: false, attributeNamePrefix: \"@_\" });\nconst entries = parser.parse(xml).feed.entry;\nconst list = Array.isArray(entries) ? entries : [entries];\nconst newest = list[0]; // newest post\n\nconst url = altLink(newest.link);\nconst title = stripHtml(textOf(newest.title));\nconst bodyHtml = textOf(newest.summary) || textOf(newest.content);\nconst teaser = stripHtml(bodyHtml).split(\" \").slice(0, TEASER_WORDS).join(\" \");\nconst image = await ogImage(url);\n\nawait sendTeaser({ title, teaser, url, image });\nconsole.log(`TEST teaser sent for: ${title}`);","label",[142],"65aa7751-5bad-4af7-8e18-b09401d1eff8","0e7a0da0-815f-11f1-8f7c-1607ee4eb77e",["D",1785700518110],9,"// Life Blood - Blog teaser publisher\n// Interval (cron) val. Watches the \"Back of the Can\" RSS feed, stacks every\n// published post oldest-to-newest, and sends ONE Klaviyo teaser campaign per\n// run for the next post that hasn't gone out yet (hook + \"Read the full\n// article\" button) to your subscriber audience.\n//\n// First run seeds the \"already sent\" log with the posts you've already\n// emailed manually (see SEED_ALREADY_SENT_HANDLES below), then immediately\n// sends the oldest still-unsent post in the same run. Every run after that\n// just advances the queue by one.\n//\n// ---- SET THESE AS VAL TOWN SECRETS (Settings > Secrets) ----\n// KLAVIYO_API_KEY your Klaviyo PRIVATE API key (pk_...). scopes: campaigns:write, templates:write\n// KLAVIYO_AUDIENCE_ID the list or segment ID to send to (e.g. a \"Blog subscribers\" segment)\n// FROM_EMAIL a verified Klaviyo sending address, e.g. hello@drinklifeblood.com\n// FROM_LABEL sender name shown in inbox, e.g. Life Blood\n// REPLY_TO_EMAIL reply-to address, e.g. hello@drinklifeblood.com\n// ------------------------------------------------------------\n\nimport { blob } from \"https://esm.town/v/std/blob\";\nimport { XMLParser } from \"https://esm.sh/fast-xml-parser@4.5.0\";\n\n// ---- Config ----\nconst FEED_URL =\n \"https://drinklifeblood.com/blogs/life-blood-back-of-the-can.atom\";\nconst BLOB_KEY = \"lifeblood_blog_sent_ids\"; // now tracks ACTUALLY SENT posts, not just \"seen\"\nconst KLAVIYO_REVISION = \"2026-07-15\";\nconst TEASER_WORDS = 45; // length of the hook pulled from the post\n\n// One-time seed: handles for posts you've already emailed manually before this\n// val existed, so the queue doesn't re-send them. Only used the very first\n// time this val runs (i.e. when the blob key doesn't exist yet).\nconst SEED_ALREADY_SENT_HANDLES = [\n \"hop-infused-kombucha\",\n \"soft-drinks-shift-2026\",\n];\n\n// Schedule the Klaviyo send for 08:06 UK time today (the val itself runs earlier, e.g. Fri 06:00).\nfunction sendStrategy() {\n const now = new Date();\n const dateStr = new Intl.DateTimeFormat(\"en-CA\", {\n timeZone: \"Europe/London\",\n }).format(now); // YYYY-MM-DD\n const offPart = new Intl.DateTimeFormat(\"en-US\", {\n timeZone: \"Europe/London\",\n timeZoneName: \"longOffset\",\n })\n .formatToParts(now).find((p) => p.type === \"timeZoneName\")?.value ??\n \"GMT+00:00\";\n let off = offPart.match(/([+-]\\d{2}:?\\d{2})/)?.[1] ?? \"+00:00\";\n if (!off.includes(\":\")) off = off.slice(0, 3) + \":\" + off.slice(3);\n const datetime = `${dateStr}T08:06:00${off}`;\n // If somehow run after 08:06 UK, send now rather than scheduling in the past.\n if (new Date(datetime).getTime() <= now.getTime()) {\n return { method: \"immediate\" };\n }\n return {\n method: \"static\",\n datetime,\n options: { is_local: false },\n };\n}\n\n// ---- Klaviyo helpers ----\nfunction kHeaders() {\n const key = Deno.env.get(\"KLAVIYO_API_KEY\");\n if (!key) throw new Error(\"Missing KLAVIYO_API_KEY secret\");\n return {\n Authorization: `Klaviyo-API-Key ${key}`,\n revision: KLAVIYO_REVISION,\n \"content-type\": \"application/json\",\n accept: \"application/json\",\n };\n}\n\nasync function kFetch(path: string, method: string, body?: unknown) {\n const res = await fetch(`https://a.klaviyo.com/api${path}`, {\n method,\n headers: kHeaders(),\n body: body ? JSON.stringify(body) : undefined,\n });\n const text = await res.text();\n if (!res.ok) {\n throw new Error(`Klaviyo ${method} ${path} -> ${res.status}: ${text}`);\n }\n return text ? JSON.parse(text) : {};\n}\n\n// ---- Feed helpers ----\nfunction stripHtml(html: string): string {\n return html\n .replace(//gi, \" \")\n .replace(//gi, \" \")\n .replace(/<[^>]+>/g, \" \")\n .replace(/ /g, \" \")\n .replace(/&/g, \"&\")\n .replace(/'|’|‘/g, \"'\")\n .replace(/"|“|”/g, '\"')\n .replace(/\\s+/g, \" \")\n .trim();\n}\n\nfunction textOf(node: unknown): string {\n if (node == null) return \"\";\n if (typeof node === \"string\") return node;\n if (\n typeof node === \"object\" && \"#text\" in (node as Record)\n ) {\n return String((node as Record)[\"#text\"] ?? \"\");\n }\n return \"\";\n}\n\nfunction altLink(link: unknown): string {\n if (!link) return \"\";\n const arr = Array.isArray(link) ? link : [link];\n const alt =\n arr.find((l: Record) => l[\"@_rel\"] === \"alternate\") ??\n arr[0];\n return String((alt as Record)?.[\"@_href\"] ?? \"\");\n}\n\n// Pull a stable \"handle\" out of the entry id/link so it matches the seed list\n// regardless of the feed's exact URL host or trailing slash.\nfunction handleOf(id: string): string {\n const parts = id.split(\"/\").filter(Boolean);\n return parts[parts.length - 1] ?? id;\n}\n\nasync function ogImage(url: string): Promise {\n try {\n const html = await (await fetch(url)).text();\n const m = html.match(\n /]+property=[\"']og:image[\"'][^>]+content=[\"']([^\"']+)[\"']/i,\n ) ||\n html.match(\n /]+content=[\"']([^\"']+)[\"'][^>]+property=[\"']og:image[\"']/i,\n );\n return m ? m[1].replace(/^http:\\/\\//i, \"https://\") : \"\";\n } catch {\n return \"\";\n }\n}\n\n// ---- Email template ----\nfunction teaserHtml(\n post: { title: string; teaser: string; url: string; image: string },\n): string {\n const img = post.image\n ? ` $\"${post.title}\"$ `\n : \"\";\n return `\n \n \n

\n \n \n \n ${img}\n \n \n \n

Back of the Can

${post.title}

Hi {{ first_name|default:'there' }},

${post.teaser}...

\n Read the full article\n

\n \n \n

Life Blood, Aberdeen. Real kombucha, no artificial sweeteners.
\n Unsubscribe\n

\n`;\n}\n\n// ---- Send one teaser campaign ----\nasync function sendTeaser(\n post: { title: string; teaser: string; url: string; image: string },\n) {\n const audience = Deno.env.get(\"KLAVIYO_AUDIENCE_ID\");\n const fromEmail = Deno.env.get(\"FROM_EMAIL\");\n const fromLabel = Deno.env.get(\"FROM_LABEL\") ?? \"Life Blood\";\n const replyTo = Deno.env.get(\"REPLY_TO_EMAIL\") ?? fromEmail;\n if (!audience) throw new Error(\"Missing KLAVIYO_AUDIENCE_ID secret\");\n if (!fromEmail) throw new Error(\"Missing FROM_EMAIL secret\");\n\n // 1. Create the email template (CODE / HTML)\n const tpl = await kFetch(\"/templates/\", \"POST\", {\n data: {\n type: \"template\",\n attributes: {\n name: `Blog teaser - ${post.title}`.slice(0, 100),\n editor_type: \"CODE\",\n html: teaserHtml(post),\n },\n },\n });\n const templateId = tpl.data.id;\n\n // 2. Create the campaign (draft) to the audience, with an empty email message\n const campaign = await kFetch(\"/campaigns/\", \"POST\", {\n data: {\n type: \"campaign\",\n attributes: {\n name: `Blog teaser - ${post.title} - ${\n new Date().toISOString().slice(0, 10)\n }`.slice(0, 100),\n audiences: { included: [audience], excluded: [] },\n send_strategy: sendStrategy(),\n send_options: { use_smart_sending: true },\n \"campaign-messages\": {\n data: [{\n type: \"campaign-message\",\n attributes: {\n definition: {\n channel: \"email\",\n label: \"Blog teaser\",\n content: {\n subject: post.title,\n preview_text: `${post.teaser.slice(0, 120)}...`,\n from_email: fromEmail,\n from_label: fromLabel,\n reply_to_email: replyTo,\n },\n },\n },\n }],\n },\n },\n },\n });\n const campaignId = campaign.data.id;\n\n // 3. Get the campaign message ID\n const messages = await kFetch(\n `/campaigns/${campaignId}/campaign-messages/`,\n \"GET\",\n );\n const messageId = messages.data[0].id;\n\n // 4. Assign the template to the message\n await kFetch(\"/campaign-message-assign-template/\", \"POST\", {\n data: {\n type: \"campaign-message\",\n id: messageId,\n relationships: {\n template: { data: { type: \"template\", id: templateId } },\n },\n },\n });\n\n // 5. Send the campaign now\n await kFetch(\"/campaign-send-jobs/\", \"POST\", {\n data: { type: \"campaign-send-job\", id: campaignId },\n });\n\n console.log(`Sent teaser campaign for: ${post.title}`);\n}\n\n// ---- Main interval handler ----\nexport default async function () {\n const feedXml = await (await fetch(FEED_URL)).text();\n const parser = new XMLParser({\n ignoreAttributes: false,\n attributeNamePrefix: \"@_\",\n });\n const parsed = parser.parse(feedXml);\n const rawEntries = parsed?.feed?.entry ?? [];\n const entries = Array.isArray(rawEntries) ? rawEntries : [rawEntries];\n\n // Build a normalised, sortable list: id, handle, published date, and the raw entry.\n const normalised = entries\n .map((e) => {\n const id = textOf(e.id) || altLink(e.link);\n const published = textOf(e.published) || textOf(e.updated);\n return { id, handle: handleOf(id), published, entry: e };\n })\n .filter((n) => n.id && n.published);\n\n // Stack oldest first, so the queue always advances in publish order.\n normalised.sort((a, b) =>\n new Date(a.published).getTime() - new Date(b.published).getTime()\n );\n\n let sent: string[] | null = await blob.getJSON(BLOB_KEY);\n\n // First run of this queue logic: seed with posts already emailed manually,\n // don't send anything extra this run beyond the normal \"send the next one\" step.\n if (!sent) {\n sent = [...SEED_ALREADY_SENT_HANDLES];\n await blob.setJSON(BLOB_KEY, sent);\n console.log(\n `Seeded sent-log with ${sent.length} already-sent post(s): ${\n sent.join(\", \")\n }`,\n );\n }\n\n const sentSet = new Set(sent);\n const next = normalised.find((n) => !sentSet.has(n.handle));\n\n if (!next) {\n console.log(\"No unsent posts in the queue. Up to date.\");\n return;\n }\n\n const url = altLink(next.entry.link);\n const title = stripHtml(textOf(next.entry.title));\n const bodyHtml = textOf(next.entry.summary) || textOf(next.entry.content);\n const teaser = stripHtml(bodyHtml).split(\" \").slice(0, TEASER_WORDS).join(\n \" \",\n );\n const image = await ogImage(url);\n\n try {\n await sendTeaser({ title, teaser, url, image });\n sentSet.add(next.handle); // only mark sent after a successful send\n await blob.setJSON(BLOB_KEY, [...sentSet]);\n console.log(\n `Queue advanced. Sent: ${next.handle}. Next run will send the following post in the stack.`,\n );\n } catch (err) {\n console.error(`Failed to send for \"${title}\" (${next.handle}):`, err);\n // leave it unsent so it retries next run, queue position holds\n }\n}",[57],"pulls","branches","forks","envVars",{"_168":170,"_171":80},"connections",{"_168":80,"_169":80},"count","unfilledCount",6,"emptyCount",{"_27":155,"_13":57,"_55":156,"_36":-5,"_29":30,"_144":103,"_146":147,"_31":178,"_33":158,"_58":150,"_151":159,"_60":24,"_153":-5,"_175":179,"_117":180},{"_27":141,"_13":142,"_55":143,"_36":-5,"_29":30,"_144":145,"_146":147,"_31":174,"_33":149,"_58":150,"_151":152,"_60":24,"_153":-5,"_175":176,"_117":177},["D",1784287904580],"children",[],[142],["D",1785700518110],[],[57],["D",1784236402891],["D",1789489305251],{"_11":12,"_116":63},{"_11":12,"_112":-5,"_62":63,"_25":61,"_113":114,"_115":24},{"_33":103,"_13":16,"_27":30,"_104":64,"_105":-5,"_106":-5,"_107":-5,"_108":-5,"_109":-5,"_110":14,"_111":12},"ctx",{"_44":-5,"_136":219,"_220":221,"_222":223,"_224":24,"_225":24,"_226":24,"_227":147,"_228":-5,"_229":-7,"_230":-7,"_231":80,"_232":24,"_233":24,"_234":-5,"_235":24,"_236":24,"_237":24,"_238":-5},"ENV",{"_190":191,"_192":193,"_194":16,"_195":196,"_197":198,"_199":200,"_201":202,"_203":204,"_205":206,"_207":208,"_209":210,"_211":212,"_213":214,"_215":216,"_217":218},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","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"]

History