[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_175":176,"_177":178},"routes/_app.x.$handle.$name",{"_11":12,"_13":14,"_15":16,"_18":19,"_17":-7,"_132":-5,"_20":133,"_22":134,"_135":136,"_137":138,"_25":139,"_24":-5,"_140":-5,"_141":-5,"_142":54,"_143":144,"_145":45,"_146":-5,"_147":-5,"_148":149},"routes/_app.x.$handle.$name.branch.$branch.code.$",{"_11":12,"_13":14,"_15":16,"_17":-7,"_18":19,"_20":21,"_22":23,"_24":-7,"_25":26,"_27":-5,"_28":-5,"_29":-5,"_30":-5,"_31":-5},"handle","dcm31","name","slack-ping-from-webhook","branchName","main","version","path","","project",{"_34":74,"_13":14,"_46":75,"_76":-5,"_77":54,"_78":79,"_80":79,"_81":82,"_83":-5,"_84":85,"_86":38,"_87":45,"_88":-5,"_89":-5,"_90":62,"_91":92,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":98,"_99":98,"_100":101,"_102":101,"_103":101,"_104":98,"_105":98,"_106":107,"_108":109,"_110":111,"_112":54},"tree",[65,66],"file","contents",[32,33],"upstream","pull","ahead","behind","envVars",{"_34":57,"_13":58,"_37":59,"_39":-5,"_40":41,"_42":60,"_44":45,"_46":61,"_17":62,"_49":24,"_51":63,"_53":54,"_55":-5,"_18":64},{"_34":35,"_13":36,"_37":38,"_39":-5,"_40":41,"_42":43,"_44":45,"_46":47,"_17":48,"_49":50,"_51":52,"_53":54,"_55":-5,"_18":56},"id","df0513fd-f1c1-4ca9-bc39-06717c7cc1d2","main.ts","fileId","019f14e9-def2-7168-a340-da0d83f5a93d","parentId","branchId","3fbb0ffe-428d-405b-9fca-3d3d653b9b7c","branchVersion",5,"latest",true,"createdAt",["D",1782858389763],4,"fileType","http","content","// slack-ping-from-webhook — fire a Slack message with one HTTP call.\n//\n// GET ?text=hello → posts \"hello\"\n// POST {\"text\":\"hello\"} → same (JSON body, form body, or raw body all work)\n//\n// Posts to ONE hardcoded channel — callers can't redirect it anywhere else.\n// First-run setup: open this val's URL in a browser and follow the button.\n\nconst CHANNEL = \"C00000000\"; // ← set this to YOUR channel ID (see README / setup page)\nconst TOKEN = Deno.env.get(\"SLACK_BOT_TOKEN\"); // xoxb-… (Slack app → OAuth & Permissions)\nconst SECRET = Deno.env.get(\"WEBHOOK_SECRET\"); // optional: require ?key=… ; open if unset\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n if (req.method === \"GET\" && !url.searchParams.has(\"text\")) return setupPage(url);\n\n if (SECRET && url.searchParams.get(\"key\") !== SECRET) {\n return new Response(\"unauthorized\\n\", { status: 401 });\n }\n if (!TOKEN) return new Response(\"missing SLACK_BOT_TOKEN\\n\", { status: 500 });\n\n const text = await readText(req, url);\n if (!text) return new Response(\"nothing to send — pass ?text= or a body\\n\", { status: 400 });\n\n const result = await postToSlack(text);\n return Response.json(result, { status: result.ok ? 200 : 502 });\n}\n\n// Pull the message out of: ?text= , a JSON body, a form body, or the raw body.\nasync function readText(req: Request, url: URL): Promise {\n const q = url.searchParams.get(\"text\");\n if (q) return q;\n const body = (await req.text().catch(() => \"\")).trim();\n if (!body) return \"\";\n try { return JSON.parse(body).text ?? \"\"; } catch { /* not JSON */ }\n return new URLSearchParams(body).get(\"text\") ?? body; // form, else raw body\n}\n\n// chat.postMessage, auto-joining the channel first if needed (public channels only).\nasync function postToSlack(text: string) {\n const call = (method: string, body: unknown) =>\n fetch(`https://slack.com/api/${method}`, {\n method: \"POST\",\n headers: { authorization: `Bearer ${TOKEN}`, \"content-type\": \"application/json\" },\n body: JSON.stringify(body),\n }).then((r) => r.json());\n\n let res = await call(\"chat.postMessage\", { channel: CHANNEL, text });\n if (!res.ok && res.error === \"not_in_channel\") {\n await call(\"conversations.join\", { channel: CHANNEL });\n res = await call(\"chat.postMessage\", { channel: CHANNEL, text });\n }\n return res;\n}\n\n// One-click Slack app creation: the manifest (bot user + chat:write) is prefilled.\nfunction setupPage(url: URL): Response {\n const manifest = {\n display_information: { name: \"slack-ping-from-webhook\" },\n features: { bot_user: { display_name: \"webhook-pinger\" } },\n oauth_config: { scopes: { bot: [\"chat:write\", \"channels:join\"] } },\n };\n const create = `https://api.slack.com/apps?new_app=1&manifest_json=${\n encodeURIComponent(JSON.stringify(manifest))\n }`;\n const demo = `${url.origin}/?text=${encodeURIComponent(\"hello from a webhook 👋\")}`;\n const needsChannel = CHANNEL === \"C00000000\";\n const needsToken = !TOKEN;\n const todo = (done: boolean, label: string) =>\n `

${done ? \"✅\" : \"⬜️\"} ${label}

`;\n return new Response(\n /* html */ `slack-ping-from-webhook\n\n

slack-ping-from-webhook

Fire a message into one Slack channel with a single HTTP request.

Create the Slack app →

Install to Workspace

Bot User OAuth Token

xoxb-…

SLACK_BOT_TOKEN

CHANNEL

main.ts

\n${\n needsToken || needsChannel\n ? `

⚠️ Finish the unchecked steps above before sending.

`\n : `

All set. Fire it: ?text=hello

`\n }\n`,\n { headers: { \"content-type\": \"text/html; charset=utf-8\" } },\n );\n}\n","deleted",false,"label",[36],"7adc2b1b-eb2a-43de-9a5b-77ab9475f1ad","README.md","019f14e9-def2-7168-a340-d4f0fd584a7a",1,["D",1782762299045],0,"# slack-ping-from-webhook\n\nFire a Slack message into **one** channel with a single HTTP request. No event\nhandling, no bot conversation logic — just a tiny sender backed by a bot token.\n\n## Send\n\n- `GET ?text=hello`\n- `POST` with `{\"text\":\"hello\"}` (JSON), `text=hello` (form), or a raw text body\n\nEverything posts to the single channel set by `CHANNEL` at the top of `main.ts`.\n\n## Setup (~2 min)\n\n1. Open this val's HTTP endpoint and click **Create the Slack app** — the\n manifest (a bot user + `chat:write` + `channels:join`) is prefilled. Then\n **Install to Workspace**.\n2. Copy the **Bot User OAuth Token** (`xoxb-…`) into the `SLACK_BOT_TOKEN` env var.\n3. Set `CHANNEL` at the top of `main.ts` to your channel's ID — open the channel\n in Slack and grab the `C…` from the URL (or _View channel details_ → Channel\n ID, copy button at the bottom).\n4. _(Optional)_ Set `WEBHOOK_SECRET` to require `?key=…` on every call. Leave it\n blank to keep the endpoint open.\n\n## Notes\n\n- **Public** channels the bot isn't in are auto-joined on the first send.\n **Private** channels and DMs must invite it first (`/invite @webhook-pinger`).\n- The channel is hardcoded on purpose — a caller can't redirect the message\n somewhere it shouldn't go.\n- **Grow it:** this is a send-only base with room to climb. Add scopes to the\n `manifest` in `main.ts` and re-create the app to unlock threads (`thread_ts`),\n Block Kit attachments, reactions, multiple channels, or even inbound events.\n",[58],{"_34":57,"_13":58,"_37":59,"_39":-5,"_40":41,"_42":60,"_44":45,"_46":71,"_17":62,"_49":24,"_51":63,"_53":54,"_55":-5,"_68":72,"_18":73},{"_34":35,"_13":36,"_37":38,"_39":-5,"_40":41,"_42":43,"_44":45,"_46":67,"_17":48,"_49":50,"_51":52,"_53":54,"_55":-5,"_68":69,"_18":70},["D",1782858389763],"children",[],[36],["D",1782762299045],[],[58],"8d88c219-5c90-4088-9044-41788f014510",["D",1782762299045],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Fire a Slack message into one channel with a single HTTP request","imageUrl","userId","9319c175-2593-4f88-ba21-04f2ef7b1c28","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount","orgId","d663a026-6449-42f6-9156-1d4a2d64d38c","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_11":12,"_131":127},"org",{"_11":12,"_124":125,"_126":127,"_84":85,"_128":129,"_130":54},"branch",{"_17":43,"_13":16,"_34":41,"_113":74,"_114":-5,"_115":-5,"_116":117,"_118":119,"_120":121,"_122":14,"_123":12},"isOwned","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","private","forkedProjectId","80b53c40-4dfe-4ce5-8aeb-1d284acd3418","forkedProjectOrgId","019aa807-52c2-709c-928b-2029bae9a558","projectName","userHandle","displayName","Charlie","avatar","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/3e904faa-3764-4629-c475-f561a49b0000/square512?exp=1789574399&sig=a925208509ae04f12f2c0946312b0486500a05bf884a2b0f9b9455e5f9f79132","tier","pro","canRestrictVals","profileImageUrl","adoptOrgId",{"_34":74,"_13":14,"_46":171,"_76":-5,"_77":54,"_78":79,"_80":79,"_81":82,"_83":-5,"_84":85,"_86":38,"_87":45,"_88":-5,"_89":-5,"_90":62,"_91":92,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":98,"_99":98,"_100":101,"_102":101,"_103":101,"_104":98,"_105":98,"_106":172,"_108":173,"_110":174,"_112":54},[165,166],"files",[165,166],"counts",{"_154":62,"_155":60,"_156":62,"_31":157,"_158":159},[150,151],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_34":57,"_13":58,"_37":59,"_39":-5,"_40":41,"_42":60,"_44":45,"_46":61,"_17":62,"_49":24,"_51":63,"_53":54,"_55":-5,"_18":153},{"_34":35,"_13":36,"_37":38,"_39":-5,"_40":41,"_42":43,"_44":45,"_46":47,"_17":48,"_49":50,"_51":52,"_53":54,"_55":-5,"_18":152},[36],[58],"pulls","branches","forks",{"_160":162,"_163":164},"connections",{"_160":62,"_161":62},"count","unfilledCount",3,"emptyCount",2,{"_34":57,"_13":58,"_37":59,"_39":-5,"_40":41,"_42":60,"_44":45,"_46":71,"_17":62,"_49":24,"_51":63,"_53":54,"_55":-5,"_68":169,"_18":170},{"_34":35,"_13":36,"_37":38,"_39":-5,"_40":41,"_42":43,"_44":45,"_46":67,"_17":48,"_49":50,"_51":52,"_53":54,"_55":-5,"_68":167,"_18":168},[],[36],[],[58],["D",1782762299045],{"_11":12,"_131":127},{"_11":12,"_124":125,"_126":127,"_84":85,"_128":129,"_130":54},{"_17":43,"_13":16,"_34":41,"_113":74,"_114":-5,"_115":-5,"_116":117,"_118":119,"_120":121,"_122":14,"_123":12},"ctx",{"_106":-5,"_147":208,"_209":210,"_211":212,"_213":54,"_214":54,"_215":54,"_216":45,"_217":-5,"_218":-7,"_219":-7,"_220":62,"_221":54,"_222":54,"_223":-5,"_224":54,"_225":54,"_226":54,"_227":-5},"ENV",{"_179":180,"_181":182,"_183":16,"_184":185,"_186":187,"_188":189,"_190":191,"_192":193,"_194":195,"_196":197,"_198":199,"_200":201,"_202":203,"_204":205,"_206":207},"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"]

Code