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Add toggle for plain text message to telegram notification adapter (#299)

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This commit is contained in:
Adrian Bartnik
2026-04-16 12:05:57 +02:00
committed by GitHub
parent e2d10d179e
commit c384781137
2 changed files with 52 additions and 13 deletions
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42
lib/notification/adapter/telegram.js
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@@ -105,6 +105,32 @@ function buildText(jobName, serviceName, o) {
);
}
/**
* Build a plain text Telegram photo caption (max 4096 characters).
* @param {string} jobName
* @param {string} serviceName
* @param {Object} o - Listing object
* @returns {string}
*/
function buildCaptionPlain(jobName, serviceName, o) {
const title = shorten((o.title || '').replace(/\*/g, ''), 90);
const meta = [o.address, o.price, o.size].filter(Boolean).join(' | ');
return `${jobName} (${serviceName})\n${title}\n${meta}\n\n${o.link || ''}`.slice(0, 4096);
}
/**
* Build a plain text Telegram message.
* @param {string} jobName
* @param {string} serviceName
* @param {Object} o - Listing object
* @returns {string}
*/
function buildTextPlain(jobName, serviceName, o) {
const title = shorten((o.title || '').replace(/\*/g, ''), 90);
const meta = [o.address, o.price, o.size].filter(Boolean).join(' | ');
return `${jobName} (${serviceName})\n${title}\n${o.link || ''}\n${meta}`;
}
/**
* Send new listings to Telegram.
* - Respects per-chat Telegram rate limits using a lightweight throttle cache.
@@ -122,7 +148,7 @@ export const send = ({ serviceName, newListings = [], notificationConfig, jobKey
if (!adapterCfg || !adapterCfg.fields) {
throw new Error(`Telegram adapter configuration missing for job '${jobKey || ''}'`);
}
const { token, chatId, messageThreadId } = adapterCfg.fields;
const { token, chatId, messageThreadId, plainText } = adapterCfg.fields;
if (!token || !chatId) {
throw new Error("Telegram 'token' and 'chatId' must be provided in notification config");
}
@@ -163,8 +189,8 @@ export const send = ({ serviceName, newListings = [], notificationConfig, jobKey
const img = normalizeImageUrl(o.image);
const textPayload = {
chat_id: chatId,
text: buildText(jobName, serviceName, o),
parse_mode: 'HTML',
text: plainText ? buildTextPlain(jobName, serviceName, o) : buildText(jobName, serviceName, o),
...(plainText ? {} : { parse_mode: 'HTML' }),
disable_web_page_preview: true,
...(message_thread_id ? { message_thread_id } : {}),
};
@@ -178,8 +204,8 @@ export const send = ({ serviceName, newListings = [], notificationConfig, jobKey
return await throttledCall('sendPhoto', {
chat_id: chatId,
photo: img,
caption: buildCaption(jobName, serviceName, o),
parse_mode: 'HTML',
caption: plainText ? buildCaptionPlain(jobName, serviceName, o) : buildCaption(jobName, serviceName, o),
...(plainText ? {} : { parse_mode: 'HTML' }),
...(message_thread_id ? { message_thread_id } : {}),
}).catch(async (e) => {
logger.error(`Error sending photo to Telegram and use a fallback: ${e.message}`);
@@ -220,5 +246,11 @@ export const config = {
description:
'Optional: The topic/thread id within a supergroup to post into (Telegram message_thread_id). Provide a positive integer.',
},
plainText: {
type: 'boolean',
optional: true,
label: 'Send as plain text',
description: 'Send messages as plain text instead of HTML formatted.',
},
},
};