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","label",[83],"7adc2b1b-eb2a-43de-9a5b-77ab9475f1ad",["D",1782762299045],"# 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",[73],"pulls","branches","forks","envVars",{"_79":93,"_207":80},"connections",{"_79":20,"_206":20},"unfilledCount","emptyCount",{"_31":195,"_13":73,"_71":72,"_41":-5,"_33":34,"_188":38,"_189":123,"_35":214,"_37":20,"_74":52,"_191":197,"_75":24,"_193":-5,"_211":215,"_163":216},{"_31":187,"_13":83,"_71":82,"_41":-5,"_33":34,"_188":107,"_189":123,"_35":210,"_37":69,"_74":84,"_191":192,"_75":24,"_193":-5,"_211":212,"_163":213},["D",1782858389763],"children",[],[83],["D",1782762299045],[],[73],["D",1782762299045],{"_11":12,"_162":78},{"_11":12,"_157":158,"_77":78,"_25":76,"_159":160,"_161":24},{"_37":107,"_13":16,"_31":34,"_146":112,"_147":-5,"_148":-5,"_149":150,"_151":152,"_153":154,"_155":14,"_156":12},"ctx",{"_50":-5,"_182":254,"_255":256,"_257":258,"_259":24,"_260":24,"_261":24,"_262":123,"_263":-5,"_264":-7,"_265":-7,"_266":20,"_267":24,"_268":24,"_269":-5,"_270":24,"_271":24,"_272":24,"_273":-5},"ENV",{"_225":226,"_227":228,"_229":16,"_230":231,"_232":233,"_234":235,"_236":237,"_238":239,"_240":241,"_242":243,"_244":245,"_246":247,"_248":249,"_250":251,"_252":253},"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"]

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