Контент-завод для Telegram с n8n: полное руководство
от теории к практике (часть 2)

JS-код: чистит мусор из ответа AI.

Вставьте этот код:
​
const fromAi =
$json?.message?.content ||
$json?.choices?.[0]?.message?.content ||
$json?.output || $json?.result || $json?.content || $json?.text || '';

const base = $json; // вход текущего item'а уже несёт title/link и пр. после Edit Fields

const clean = (s='') => String(s)
.replace(/^[\s\S]*?(?:ВЫВОД|OUTPUT)\s*:?\s*/i,'')
.replace(/^\s*(TITLE|BODY|LINK|ЗАДАЧА)\s*:.*$/gmi,'')
.replace(/\n{3,}/g,'\n\n')
.trim();

let author = clean(fromAi);
if (!author) author = clean(base.text_for_rewrite || base.raw || base.title || '');

return { json: { ...base, author_text: author } };

Код вставить из воркфлоу: формирует Telegram-caption до 1024 символов.

function escapeHtml(s=""){
return String(s).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;");
}
function stripTags(s=""){
return String(s).replace(/<[^>]*>/g," ").replace(/\s+/g," ").trim();
}
function splitFirstSentence(s=""){
const t = String(s).trim();
const m = t.match(/^[\s\S]*?[.!?…](?=\s|$)/); // до первой . ! ? …
return m ? [m[0].trim(), t.slice(m[0].length).trim()] : [t, ""];
}

const fromInput = $json || {};
const fromSet = ($items('Set (cleanup)', 0, $itemIndex) || {}).json || {};

const titleRaw = fromInput.title ?? fromSet.title ?? "";
const rawRaw = fromInput.raw ?? fromSet.raw ?? "";
const link = String(fromInput.link ?? fromSet.link ?? "");

const title = stripTags(titleRaw);
let body = stripTags(fromInput.author_text || "");

if (!body || /нет текста|ничего пересказывать/i.test(body)) body = stripTags(rawRaw) || title;
if (!body || /нет текста|ничего пересказывать/i.test(body)) body = stripTags(rawRaw) || title || "Без текста";

const TG_LIMIT = 1024;

// Префикс (заголовок)
let caption = "";
if (title) caption += `<b>${escapeHtml(title)}</b>\n\n`;

// Тело: первое предложение жирным + остальной текст
let [firstSent, restText] = splitFirstSentence(body);
let core = `<b>${escapeHtml(firstSent)}</b>`;
if (restText) core += `\n\n${escapeHtml(restText)}`;

// Хвост: источник + подписка с жирной ссылкой на @vanchain
const linkHtml = link ? `<a href="${escapeHtml(link)}">Источник</a>\n\n` : "";
const insightLink = `<b><a href="https://t.me/vanchain">Insight</a></b>`;
const tail = `${linkHtml}Подписывайся на ${insightLink}`;

// Укладываемся в лимит: стараемся не резать заголовок и 1-е предложение
let room = TG_LIMIT - caption.length - tail.length;
let coreOut = core;

if (core.length > room) {
// сначала режем «хвост» (не первое предложение)
const boldFirst = `<b>${escapeHtml(firstSent)}</b>`;
const restEsc = escapeHtml(restText || "");
const sep = restEsc ? `\n\n` : "";

const restRoom = room - boldFirst.length - sep.length;
if (restRoom >= 0) {
const cutRest = restEsc ? (restEsc.length > restRoom ? (restEsc.slice(0, Math.max(0, restRoom - 1)) + "…") : restEsc) : "";
coreOut = boldFirst + (cutRest ? `\n\n${cutRest}` : "");
} else {
// даже первое предложение не влезает — режем его
const firstText = escapeHtml(firstSent);
const allow = Math.max(0, room - ("<b></b>".length)); // запас под теги
const cutFirst = firstText.length > allow ? (firstText.slice(0, Math.max(0, allow - 1)) + "…") : firstText;
coreOut = `<b>${cutFirst}</b>`;
}
}

// Сборка
caption += coreOut + `\n\n` + tail;

return [{ json: { ...fromSet, ...fromInput, caption } }];

JSON Body:

{
hash: $json.hash,
title: $json.title,
body_markdown: $json.caption,
image_url: $json.image_url_ai ?? $json.image_url ?? null,
status: "posted",
published_at: new Date().toISOString()
}

ТУТ весь код целиком, просто вставьте его и подключите свои аккаунты:

{
"name": "Telegram-канал",
"nodes": [
{
"parameters": {
"triggerTimes": {
"item": [
{
"mode": "everyX",
"value": 15,
"unit": "minutes"
}
]
}
},
"id": "4ad87778-300b-4fa5-99be-15d59c4ec834",
"name": "Cron (hourly)",
"type": "n8n-nodes-base.cron",
"typeVersion": 1,
"position": [-740, -420]
},
{
"parameters": {
"url": "={{ `https://rsshub.app/telegram/channel/insight_rss_inbox?limit=50&_=${Math.floor(Date.now()/30000)}` }}",
"options": {
"ignoreSSL": false
}
},
"id": "b7bd4e68-8db1-4141-8c94-2f4c1906615a",
"name": "RSS Read",
"type": "n8n-nodes-base.rssFeedRead",
"typeVersion": 1,
"position": [-320, -520],
"retryOnFail": true,
"waitBetweenTries": 5000,
"alwaysOutputData": false,
"onError": "continueErrorOutput"
},
...
{
"id": "3aa1fb9d-588e-4750-b19b-c79e7668bc9b",
"name": "OpenAI (Author Text)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [-700, 80],
"credentials": {
"openAiApi": {
"id": "[твой_Api]",
"name": "[твой_Api]"
}
}
},
...
{
"id": "aa8f4f55-e7ac-4752-8f14-6c482a5a5933",
"name": "OpenAI (Image)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [320, 0],
"credentials": {
"openAiApi": {
"id": "[твой_Api]",
"name": "[твой_Api]"
}
}
},
...
{
"id": "5d421f2d-15e8-4503-a57e-a5b8f8df713d",
"name": "Telegram",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1.2,
"position": [900, 80],
"credentials": {
"telegramApi": {
"id": "[твой_Api]",
"name": "[твой_Api]"
}
}
},
...
{
"id": "4943cb02-dacd-4d21-b7f6-0a0dced4621a",
"name": "Mark as Published (Supabase)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [1220, 80],
"parameters": {
"method": "POST",
"url": "https://[твой_Api]/rest/v1/posts?on_conflict=hash",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{ "name": "Content-Type", "value": "application/json" },
{ "name": "apikey", "value": "[твой_Api]" },
{ "name": "Authorization", "value": "Bearer [твой_Api]" },
{ "name": "prefer", "value": "resolution=merge-duplicates,return=minimal" }
]
}
}
},
...
{
"id": "76948513-2245-407c-a6d5-8e4ecbcb45b4",
"name": "Gate: SELECT posts by hash",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [600, -240],
"parameters": {
"url": "https://[твой_Api]/rest/v1/posts?select=hash&hash=eq.{{$json.hash}}&limit=1",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{ "name": "apikey", "value": "[твой_Api]" },
{ "name": "Authorization", "value": "Bearer [твой_Api]" }
]
}
}
},
...
{
"id": "2a840998-5810-4467-9b46-d6b63103568a",
"name": "Recent posts (N days)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [-340, -220],
"parameters": {
"url": "https://[твой_Api]/rest/v1/posts",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{ "name": "apikey", "value": "[твой_Api]" },
{ "name": "Authorization", "value": "Bearer [твой_Api]" }
]
}
}
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "feb898ae-fac5-42fe-ad22-454da8e1c595",
"meta": {
"templateCredsSetupCompleted": true,
"instanceId": "[твой_Api]"
},
"id": "CsO6MORfgeWgWlqe",
"tags": []
}

​