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ARCHIVE_URL : `${ARCHIVE_URL}page/${page}/`;\n}\n\nfunction parsePage(html: string): FeedItem[] {\n const $ = load(html);\n return $(\"article.post-card--public\").toArray().flatMap((element) => {\n const card = $(element);\n const anchor = card.find(\"h1 a[href]\").first();\n const href = anchor.attr(\"href\");\n const title = anchor.text().replace(/\\s+/g, \" \").trim();\n if (!href || !title) return [];\n\n const date = card.find(\"time[datetime]\").first().attr(\"datetime\") ?? null;\n const summary = card.find(\"p\").first().text().replace(/\\s+/g, \" \").trim() || null;\n return [{ title, url: new URL(href, ARCHIVE_URL).href, date, summary }];\n });\n}\n\nasync function scrapeArchive(): Promise {\n const byUrl = new Map();\n for (let page = 1; page <= MAX_PAGES; page++) {\n const response = await fetch(archivePageUrl(page));\n if (response.status === 404) break;\n if (!response.ok) throw new Error(`archive page ${page}: HTTP ${response.status}`);\n\n const items = parsePage(await response.text());\n if (items.length === 0) break;\n for (const item of items) byUrl.set(item.url, item);\n }\n\n const items = [...byUrl.values()].sort((a, b) =>\n (b.date ?? \"\").localeCompare(a.date ?? \"\")\n );\n if (items.length < 30) throw new Error(`archive returned only ${items.length} public posts`);\n return items;\n}\n\nexport async function refresh(): Promise {\n const items = await scrapeArchive();\n await blob.setJSON(CACHE_KEY, { lastCheck: new Date().toISOString(), items } satisfies Cache);\n}\n\nexport async function lastChecked(): Promise {\n const value = (await readCache()).lastCheck;\n const parsed = value ? Date.parse(value) : Number.NaN;\n return Number.isNaN(parsed) ? 0 : parsed;\n}\n\nexport async function fetchItems(): Promise {\n return (await readCache()).items;\n}\n\nfunction escapeXml(value: string): string {\n return value.replace(/&/g, \"&\").replace(//g, \">\")\n .replace(/\"/g, \""\").replace(/\\x27/g, \"'\");\n}\n\nexport function buildRss(items: FeedItem[], selfUrl: string): string {\n const body = items.map((item) => {\n const published = item.date\n ? `${new Date(`${item.date}T00:00:00Z`).toUTCString()}`\n : \"\";\n const summary = item.summary ? `${escapeXml(item.summary)}` : \"\";\n return `\n ${escapeXml(item.title)}\n ${escapeXml(item.url)}\n ${escapeXml(item.url)}\n ${published}\n ${summary}\n `;\n }).join(\"\\n \");\n\n return `\n\n \n Bits about Money\n ${ARCHIVE_URL}\n All freely accessible Bits about Money essays.\n en-us\n \n ${body}\n \n`;\n}","import { blob } from \"https://esm.town/v/std/blob/main.ts\";\nimport { load } from \"npm:cheerio@1.0.0\";\n\nconst SOURCE_URL = \"https://www.aboutamazon.com/about-us/shareholder-letters\";\nconst CACHE_KEY = \"amazon-shareholder-letters-feed\";\nconst MIN_ITEMS = 10;\nconst INCLUDED_YEARS = new Set([\n \"2025\",\n \"2024\",\n \"2023\",\n \"2022\",\n \"2021\",\n \"2020\",\n \"2019\",\n \"2018\",\n \"2017\",\n \"2016\",\n \"1997\",\n]);\n\nexport interface FeedItem {\n title: string;\n url: string;\n}\n\ninterface Cache {\n lastCheck: string | null;\n items: FeedItem[];\n}\n\nasync function readCache(): Promise {\n return (await blob.getJSON(CACHE_KEY)) ?? { lastCheck: null, items: [] };\n}\n\nfunction parseCollection(html: string): FeedItem[] {\n const $ = load(html);\n const byUrl = new Map();\n\n $('a[href*=\"/news/company-news/\"]').each((_index, element) => {\n const anchor = $(element);\n const href = anchor.attr(\"href\");\n const sourceTitle = anchor.text().replace(/\\s+/g, \" \").trim();\n if (!href || !sourceTitle) return;\n\n const url = new URL(href, SOURCE_URL);\n const year = url.pathname.match(/(?:1997|20\\d{2})/)?.[0];\n if (url.origin !== \"https://www.aboutamazon.com\" || !year || !INCLUDED_YEARS.has(year)) return;\n if (!url.pathname.includes(\"letter-to-shareholders\")) return;\n\n url.search = \"\";\n url.hash = \"\";\n const title = sourceTitle.includes(year) ? sourceTitle : \\`\\${year} \\${sourceTitle}\\`;\n if (!byUrl.has(url.href)) byUrl.set(url.href, { title, url: url.href });\n });\n\n return [...byUrl.values()];\n}\n\nasync function scrapeCollection(): Promise {\n const response = await fetch(SOURCE_URL, {\n headers: {\n Accept: \"text/html\",\n \"User-Agent\": \"ListenlyFeedBot/1.0\",\n },\n });\n if (!response.ok) throw new Error(\\`Amazon shareholder letters: HTTP \\${response.status}\\`);\n\n const items = parseCollection(await response.text());\n if (items.length < MIN_ITEMS) {\n throw new Error(\\`Amazon collection returned only \\${items.length} letters\\`);\n }\n return items;\n}\n\nexport async function refresh(): Promise {\n const items = await scrapeCollection();\n await blob.setJSON(CACHE_KEY, { lastCheck: new Date().toISOString(), items } satisfies Cache);\n}\n\nexport async function lastChecked(): Promise {\n const value = (await readCache()).lastCheck;\n const parsed = value ? Date.parse(value) : Number.NaN;\n return Number.isNaN(parsed) ? 0 : parsed;\n}\n\nexport async function fetchItems(): Promise {\n return (await readCache()).items;\n}\n\nfunction escapeXml(value: string): string {\n return value.replace(/&/g, \"&\").replace(//g, \">\")\n .replace(/\"/g, \""\").replace(/'/g, \"'\");\n}\n\nexport function buildRss(items: FeedItem[], selfUrl: string): string {\n const body = items.map((item) => \\`\n \\${escapeXml(item.title)}\n \\${escapeXml(item.url)}\n \\${escapeXml(item.url)}\n \\`).join(\"\\n \");\n\n return \\`\n\n \n Amazon shareholder letters\n \\${SOURCE_URL}\n Amazon shareholder letters selected by Amazon, from 2016 through 2025 plus the original 1997 letter.\n en-us\n \n \\${body}\n \n\\`;\n}\n","createdAt",["D",1788147430206],"branchVersion","branchId","4be5ffcb-3337-4e81-82bd-6c027f1cd1aa","id","15d7dd8f-5d7b-4946-a6d2-79b6972abca9","amazon-shareholder-letters-rss",["D",1788147190023],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Selected Amazon shareholder letters","imageUrl","41fc127f-5d67-4e9d-aaf5-7f1531438361","pinnedFileId","01a055e0-c9bf-7688-ba72-bd00d203c616","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","9dd2e27d-d103-40dd-bb45-da8e837d341a","tursoName","15d7dd8f5d7b4946a6d279b6972abca9","tursoHostname","15d7dd8f5d7b4946a6d279b6972abca9-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789535451117],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_102":101,"_109":105},"org",{"_102":101,"_103":-5,"_104":105,"_18":55,"_106":107,"_108":25},"branch",{"_13":89,"_32":90,"_43":42,"_91":44,"_92":93,"_94":89,"_95":50,"_96":97,"_98":65,"_99":45,"_100":101},"isOwned",6,"main","projectId","forkedBranchId","2d486230-5945-4b95-b250-34c2c02fc992","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","6951b886-1c7e-4ed3-8041-04a6995d6f6d","forkedProjectOrgId","projectName","userHandle","ivryb","handle","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18yZkFtS1dWcU5NYWRjQkN5MGVCUTVRS0Z5SkEifQ","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_43":44,"_32":45,"_38":213,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":67,"_68":69,"_70":214,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":215,"_84":216,"_86":217,"_88":25},"tree",[192,193,194,195,196],"files",[192,193,194,195,196],"counts",{"_182":63,"_183":153,"_184":63,"_185":186,"_187":188},"contents",[144,145,146,147,148],"upstreamProject",{"_43":97,"_32":141,"_52":142,"_54":-5,"_49":50,"_82":143},"upstreamBranch",{"_43":93,"_38":134,"_135":136,"_32":90,"_91":97,"_13":89,"_92":137,"_94":138,"_139":140,"_47":-5,"_88":25,"_49":50,"_100":101,"_64":65,"_99":141},"emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},["D",1788145822344],"updatedAt",["D",1788145975853],"adc2f96c-f87b-444e-97b5-b08189b7e0e6",14,"lockfileKey","1788145976026-esm.town_v_ivryb_bits-about-money-rss@6-main","bits-about-money-rss","Full RSS feed for Bits About Money",{"_102":101,"_109":105},{"_43":176,"_32":177,"_30":178,"_152":-5,"_41":42,"_40":153,"_154":25,"_38":179,"_13":63,"_33":20,"_35":180,"_24":25,"_157":-5,"_27":181},{"_43":169,"_32":170,"_30":57,"_152":-5,"_41":42,"_40":153,"_154":59,"_38":171,"_13":63,"_33":172,"_35":173,"_24":25,"_157":174,"_27":175},{"_43":162,"_32":163,"_30":164,"_152":-5,"_41":42,"_40":153,"_154":25,"_38":165,"_13":63,"_33":166,"_35":167,"_24":25,"_157":-5,"_27":168},{"_43":159,"_32":28,"_30":31,"_152":-5,"_41":42,"_40":14,"_154":25,"_38":160,"_13":153,"_33":34,"_35":37,"_24":25,"_157":-5,"_27":161},{"_43":149,"_32":150,"_30":151,"_152":-5,"_41":42,"_40":153,"_154":59,"_38":155,"_13":63,"_33":34,"_35":156,"_24":25,"_157":-5,"_27":158},"abef7361-bc9e-46eb-8d33-4a876d6994b5","seed.ts","01a055e0-c9bf-7688-ba72-c9a95dd0cf4b","parentId",1,"latest",["D",1788147190023],"import { fetchItems, refresh } from \"./scraper.ts\";\n\nawait refresh();\nconsole.log(`Seeded ${(await fetchItems()).length} feed items.`);","label",[150],"06792617-1908-4a56-bf5c-61b10b4aaa6c",["D",1788147430206],[28],"63035141-9f6e-4bde-b80b-5be6411602c6","refresh.ts","01a055e0-c9bf-7688-ba72-c26a509e89a9",["D",1788147190023],"interval","import { refresh } from \"./scraper.ts\";\n\nexport default async function (): Promise {\n await refresh();\n console.log(\"bits-about-money-rss refreshed\");\n}",[163],"e675a6ea-7595-45c1-9355-4b4fb0b8f46e","main.ts",["D",1788147190023],"http","import { buildRss, fetchItems, lastChecked, refresh } from \"./scraper.ts\";\n\nconst STALE_MS = 6 * 60 * 60 * 1000;\n\nexport default async function handler(request: Request): Promise {\n try {\n if (Date.now() - 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Try again in a minute.\", { status: 503 });\n }\n\n const selfUrl = new URL(request.url);\n selfUrl.search = \"\";\n selfUrl.hash = \"\";\n return new Response(buildRss(items, selfUrl.href), {\n headers: {\n \"Cache-Control\": \"public, max-age=900\",\n \"Content-Type\": \"application/rss+xml; charset=utf-8\",\n },\n });\n}","amazon-shareholder-letters",[170],"4ef01845-8c2d-4cc9-a88b-a442753ec339","README.md","01a055e0-c9bf-7688-ba72-b98a3d89be9c",["D",1788147190023],"# bits-about-money-rss\n\nA complete RSS feed for [Bits about Money](https://www.bitsaboutmoney.com/archive/).\n\n[Open the feed](url:main.ts)\n\nThe scraper follows the public archive pagination, keeps only cards marked public, and currently returns 63 essays. It refuses to replace the last good cache if fewer than 30 posts are found.\n\n`refresh.ts` updates the cache daily. `main.ts` also refreshes a cache older than six hours when requested and serves the last good copy if the publisher is temporarily unavailable.",[177],"pulls","branches","forks","envVars",{"_189":63,"_191":63},"connections",{"_189":63,"_190":63},"count","unfilledCount","emptyCount",{"_43":176,"_32":177,"_30":178,"_152":-5,"_41":42,"_40":153,"_154":25,"_38":210,"_13":63,"_33":20,"_35":180,"_24":25,"_157":-5,"_198":211,"_27":212},{"_43":169,"_32":170,"_30":57,"_152":-5,"_41":42,"_40":153,"_154":59,"_38":207,"_13":63,"_33":172,"_35":173,"_24":25,"_157":174,"_198":208,"_27":209},{"_43":162,"_32":163,"_30":164,"_152":-5,"_41":42,"_40":153,"_154":25,"_38":204,"_13":63,"_33":166,"_35":167,"_24":25,"_157":-5,"_198":205,"_27":206},{"_43":159,"_32":28,"_30":31,"_152":-5,"_41":42,"_40":14,"_154":25,"_38":201,"_13":153,"_33":34,"_35":37,"_24":25,"_157":-5,"_198":202,"_27":203},{"_43":149,"_32":150,"_30":151,"_152":-5,"_41":42,"_40":153,"_154":59,"_38":197,"_13":63,"_33":34,"_35":156,"_24":25,"_157":-5,"_198":199,"_27":200},["D",1788147190023],"children",[],[150],["D",1788147430206],[],[28],["D",1788147190023],[],[163],["D",1788147190023],[],[170],["D",1788147190023],[],[177],["D",1788147190023],["D",1789535451117],{"_102":101,"_109":105},{"_102":101,"_103":-5,"_104":105,"_18":55,"_106":107,"_108":25},{"_13":89,"_32":90,"_43":42,"_91":44,"_92":93,"_94":89,"_95":50,"_96":97,"_98":65,"_99":45,"_100":101},"ctx",{"_82":-5,"_131":251,"_252":253,"_254":255,"_256":25,"_257":25,"_258":25,"_259":59,"_260":-5,"_261":-7,"_262":-7,"_263":63,"_264":25,"_265":25,"_266":-5,"_267":25,"_268":25,"_269":25,"_270":-5},"ENV",{"_222":223,"_224":225,"_226":90,"_227":228,"_229":230,"_231":232,"_233":234,"_235":236,"_237":238,"_239":240,"_241":242,"_243":244,"_245":246,"_247":248,"_249":250},"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"]

Diff · v2