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feat: notifications support Telegram topics in supergroups #493

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feat: notifications support Telegram topics in supergroups #493

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11 changes: 7 additions & 4 deletions src/lib/server/notifications.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -209,27 +209,30 @@ async function sendSlack(appriseUrl: string, payload: NotificationPayload): Prom

// Telegram
async function sendTelegram(appriseUrl: string, payload: NotificationPayload): Promise<NotificationResult> {
// tgram://bot_token/chat_id
const match = appriseUrl.match(/^tgram:\/\/([^/]+)\/(.+)/);
// tgram://bot_token/chat_id:topic_id?
const match = appriseUrl.match(/^tgram:\/\/([^/]+)\/([^:\/]+)(?::(\d+))?$/);
if (!match) {
return { success: false, error: 'Invalid Telegram URL format. Expected: tgram://bot_token/chat_id' };
return { success: false, error: 'Invalid Telegram URL format. Expected: tgram://bot_token/chat_id or tgram://bot_token/chat_id:topic_id' };
}

const [, botToken, chatId] = match;
const [, botToken, chatId, topicIdStr] = match;
const url = `https://api.telegram.org/bot${botToken}/sendMessage`;

// Escape markdown special characters in title and message
const escapedTitle = escapeTelegramMarkdown(payload.title);
const escapedMessage = escapeTelegramMarkdown(payload.message);
const envTag = payload.environmentName ? ` \\[${escapeTelegramMarkdown(payload.environmentName)}\\]` : '';

const topicId = Number.parseInt(topicIdStr, 10)

try {
const response = await fetch(url, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
chat_id: chatId,
text: `*${escapedTitle}*${envTag}\n${escapedMessage}`,
message_thread_id: Number.isNaN(topicId) ? undefined : topicId,
parse_mode: 'Markdown'
})
});
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1 change: 1 addition & 0 deletions src/routes/settings/notifications/NotificationModal.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -415,6 +415,7 @@
discord://webhook_id/webhook_token
slack://token_a/token_b/token_c
tgram://bot_token/chat_id
tgram://bot_token/chat_id:topic_id
ntfy://my-topic
pushover://user_key/api_token
jsons://hostname/webhook/path"
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