I have many telegram channels, 24\7 they send messages in the format 

"buy usdjpy sl 145.2 tp 167.4"  
"eurusd sell sl 145.2 tp 167.4" 
"eurusd sl 145.2 tp 167.4 SELL"

or these words in some order
My idea is to create app that checks every channel's message, and redirects it to my channel if it is in the above format.
Does telegram api allow it?
This is very easy to do with Full Telegram API.

first on your mobile phone subscribe to all the interested channels
Next you develop a simple telegram client the receives all the updates from these channels
Next you build some parsers that can understand the channel messages and filter out what you are interested in
Finally you send the filtered content (re-formatted) to your own channel.

that's all that is required.
How can I redirect messages from telegram channels that are in certain format?[telegram bot]