Interview Coach Bot Workflow

Interview se pehle practice karwane wala koi nahi milta? Is guide mein ek chhota n8n workflow hai: Telegram bot ko topic bhejo (HR ya Python), bot ek sawaal poochta hai; tum us sawaal pe REPLY karke apna jawab bhejte ho, aur AI ek achhi cheez aur ek sudhaar ka tip deta hai. Na dost ka wait, jab mann kare tab practice.

Reel mein jo 'HR', 'Apne baare mein batao.' aur tip dikhe, wo banaya hua example hai. Ye starter workflow hai, n8n ke official preview mein dikhaya gaya. Credentials khud jodne padte hain, aur chalu karne se pehle ek test message se zaroor check karo.

Node by node (n8n ke official docs ke hisaab se)

Trick: memory node ke bina

Telegram Bot API ke Message object mein reply_to_message field hota hai: 'For replies in the same chat and message thread, the original message.' Yani jab tum bot ke sawaal pe Reply karte ho, bot ko tumhara jawab aur saath mein wo original sawaal dono milte hain. Is workflow ka prompt isi field se sawaal padhta hai (message.reply_to_message.text). Isliye is starter mein alag memory node nahi lagaya. (Ye hamare workflow ka design hai, n8n ka koi rule nahi.)

Kya chahiye

• n8n: n8n Cloud (n8n hosting sambhalta hai) ya apna self-host (infrastructure tum khud provide aur manage karte ho). Plans aur kharche ke liye n8n ka official pricing page dekho.
• Telegram bot ka Access Token: Telegram par BotFather se chat shuru karo, /newbot likho, naam aur username do (username 'bot' par khatam hona chahiye, 5 se 32 characters), aur jo token mile use n8n mein Access Token ki jagah daalo.
• Gemini API key: Google AI Studio mein API Key page par Create API Key dabao, aur key n8n credential mein daalo.
• n8n ka HTTPS URL: Telegram Trigger ke liye n8n docs likhte hain ki webhook ke liye HTTPS URL dena zaroori hai. Self-host mein WEBHOOK_URL environment variable mein apne n8n ka public URL daalna padta hai.

Step by step

1. n8n kholo (Cloud ya apna self-host) aur ek naya workflow banao.
2. Neeche wala starter workflow Import from File se laao, ya JSON copy karke canvas par paste karo.
3. Telegram bot banao (BotFather, /newbot) aur token copy karo. Telegram Trigger aur Send Reply dono nodes mein Telegram credential chuno ya naya banao: token Access Token mein jaata hai.
4. Google AI Studio mein Gemini API key banao. Gemini Model node mein Google Gemini(PaLM) credential banao aur key daalo. Model dropdown se ek model chuno.
5. n8n ka HTTPS URL set karo (self-host mein WEBHOOK_URL). Telegram ek app par sirf ek webhook allow karta hai: test URL aur production URL ke beech badloge to purana webhook overwrite hota hai.
6. Interview Coach node mein prompt dekho. Chaho to 'freshers' ki jagah apna role likho.
7. Bot ko ek topic bhejo, jaise HR. Bot ka sawaal aana chahiye.
8. Bot ke SAWAAL wale message pe Reply karo aur apna jawab likho. Tip aana chahiye. Agar reply khali aaye, to Send Reply ke Text mein Expression editor se Interview Coach ka output wala field chuno.
9. Sab sahi chale, tab workflow ko active karo.

{
  "name": "Interview Coach Bot Starter",
  "nodes": [
    {"id":"1","name":"New Message","type":"n8n-nodes-base.telegramTrigger","typeVersion":1.2,"position":[0,0],"parameters":{"updates":["message"],"additionalFields":{}}},
    {"id":"2","name":"Interview Coach","type":"@n8n/n8n-nodes-langchain.chainLlm","typeVersion":1.6,"position":[320,0],"parameters":{"promptType":"define","text":"=You are a friendly interview coach for freshers. Reply in simple Hinglish, at most 4 short lines.\n\nIf \"Question asked\" below is empty, the message is a TOPIC: ask ONE interview question on that topic and nothing else.\nIf \"Question asked\" has text, the message is the candidate's ANSWER to it: say one thing that was good and ONE thing to improve. Never promise a job or a result.\n\nQuestion asked: {{ $json.message.reply_to_message ? $json.message.reply_to_message.text : '' }}\nMessage: {{ $json.message.text }}"}},
    {"id":"3","name":"Gemini Model","type":"@n8n/n8n-nodes-langchain.lmChatGoogleGemini","typeVersion":1,"position":[340,260],"parameters":{"options":{}}},
    {"id":"4","name":"Send Reply","type":"n8n-nodes-base.telegram","typeVersion":1.2,"position":[700,0],"parameters":{"chatId":"={{ $('New Message').item.json.message.chat.id }}","text":"={{ $json.text }}","additionalFields":{"appendAttribution":false}}}
  ],
  "connections": {"New Message":{"main":[[{"node":"Interview Coach","type":"main","index":0}]]},"Interview Coach":{"main":[[{"node":"Send Reply","type":"main","index":0}]]},"Gemini Model":{"ai_languageModel":[[{"node":"Interview Coach","type":"ai_languageModel","index":0}]]}}
}

Is JSON mein credentials nahi hain: Telegram aur Gemini credential tumhe khud chunne hain, aur Gemini model dropdown se ek model bhi tumhe chunna hai.

System prompt (Interview Coach node ka text)

You are a friendly interview coach for freshers. Reply in simple Hinglish, at most 4 short lines.

If "Question asked" below is empty, the message is a TOPIC: ask ONE interview question on that topic and nothing else.
If "Question asked" has text, the message is the candidate's ANSWER to it: say one thing that was good and ONE thing to improve. Never promise a job or a result.

Question asked: {{ $json.message.reply_to_message ? $json.message.reply_to_message.text : '' }}
Message: {{ $json.message.text }}

Prompt 'Question asked' khali hone par message ko topic maanta hai, aur bhara hone par jawab. Isme likha hai ki naukri ya result ka vaada kabhi na kare. Phir bhi AI galat ya zyada tareef wala feedback de sakta hai: use practice ki tarah lo.

Topic list (suggestions)

Ye topics sirf suggestion hain (banaya hua list). Koi bhi topic likh ke dekh sakte ho; bot ka sawaal model ki soch pe hai, har baar alag ho sakta hai.

Practice plan (suggestion, guarantee nahi)

1. Ek topic chuno aur bot se ek sawaal lo.
2. Pehle jawab apne shabdon mein bolke socho, phir type karke Reply karo.
3. Tip padho aur sirf EK cheez sudharo.
4. Jawab dobara likho, is baar wo ek sudhaar ke saath.
5. Doosre topic par jao. Har topic ke baad ek line apni notebook mein likho: kya sudhara.

Aam galtiyan

• Jawab ko Reply ki jagah normal message bhej dena. Tab bot ko purana sawaal nahi milta aur wo use naya topic maan leta hai. Sawaal wale message pe Reply karo.
• Tip wale message pe Reply kar dena: prompt use bhi jawab maan lega. Sirf sawaal pe Reply karo.
• Telegram Trigger par HTTPS URL nahi hai, ya self-host mein WEBHOOK_URL set nahi hai. Telegram ke liye URL HTTPS hi hona chahiye.
• Test aur production URL ke beech badalna. Telegram ek app par sirf ek webhook allow karta hai, to purana webhook overwrite ho jaata hai.
• Telegram bot ka token galat hai. Token BotFather se aata hai. Send Reply mein Chat ID bhi dekho.
• Gemini Model node mein credential ya model chuna hi nahi.
• Test kiye bina workflow chalu kar dena. Pehle ek topic aur ek reply se check karo.

n8n kahan chalayein (plans badalte rehte hain, official page dekho)

Dono mein Telegram Trigger ko HTTPS URL chahiye. Plans aur kharche n8n ke official pricing page par dekho; yahan koi price nahi likha.

Official links