Set up Telegram Swarming Session

Prerequisite:

1. To install the MID agent, you need Python and the Telethon library on a server. To install the library, run the following commands on the command line (after downloading and installing Python):

   python3 -m pip install --upgrade pip
python3 -m pip install --upgrade telethon

2. You need an Android device with a physical SIM card and with the Telegram application installed. The Telegram account should be created based on the SIM card number.
3. On the Android device, you also need to install the Pydroid 3 and the Telethon library application to run scripts.

On the Administrator's server

1. Create a record in the MID Server (sys_mid_server) table. To do so, click New and complete the fields of the new record as follows:

   Field	Mandatory	Description
   Name	Y	A name of the infrastructure server, that will be displayed in the list, for example, TgBotMIDServer.
   Host Name	Y	A host name of the external server to connect to, for example, mid_server.
   User	Y	A user name who will have access to the functionality of the infrastructure agent. The user must have the admin role.

2. Download the MID Agent acrchive.

3. On disk C, create a folder named MID_agent.
   

   To create Telegram groups on different instances, create separate folders for the MID agent of each instance with different names.

4. Move the downloaded .exe and .env files to the created folder in Step 2.

5. In the .env file, set the following configurations:

   Variable	Value
   MID_API_USERNAME	A user login, stated in the MID Server (sys_mid_server) record, created in Step 1.
   MID_API_PASSWORD	A user password, stated in the MID Server (sys_mid_server) record, created in Step 1.
   MID_API_SERVERID	ID of the earlier created record in the MID Server (sys_mid_server) table.
   MID_API_ENDPOINT	Instance, that the MID server will run.

6. Create a Telegram client. 

   To create a Telegram client, complete the steps below:

   1. Follow the https://my.telegram.org link for authorization.

   2. Complete the form on the https://my.telegram.org/apps website to receive the URL and parameters of api_id and api_hash needed for the users' authorization.

   It is possible to link only one api_id to the telephone number.

7. Download a script archive, and add the scripts to the MID_agent folder created at the Step 3. 
   The four scripts in the folder are:
   
   • createGroup – to create a group,
   • closeGroup – to restrict commenting upon the completion of the incident and changing its state to Completed,
   • deleteGroup – to delete a Telegram group,
   • clientInformation – to store api_id and api_hash.
8. Open the clientInformation script and add the api_id and api_hash values received when creating a Telegram client.

9. Create a .py file and add the following start script there:

   Start script for Telegram

   from telethon import TelegramClient
   import clientInformation 
   
   client = TelegramClient('swarming', clientInformation.api_id, clientInformation.api_hash)
   
   async def main(): 
       me = await client.get_me()
       print(me)
   
   with client:
       client.loop.run_until_complete(main())
   
   

10. Configure the instance as described below. 

On the SimpleOne instance

1. Create three scripts in the MID Scripts (sys_mid_script) table. To do so:
   1. In the MID Scripts (sys_mid_script) table, click New. A new script form opens.
   2. Add createGroup as the name of the script.

   3. In the Script field, add the path to the script on your server and the parameters, as shown below.

   4. Repeat the Steps a-c to add closeGroup and deleteGroup scripts.

      createGroup
      Script	python C:\User's Path\createGroup.py $botUserName $incidentDispalyName $titleMessage $mainInformation

      closeGroup
      Script	python C:\User's Path\closeGroup.py $chatId

      deleteGroup
      Script	python C:\User's Path\deleteGroup.py $chatId

      When using several MID agents for the operation of Telegram groups on different instances, specify the path to the necessary agent folder in the script.

2. Go to the System Properties (sys_property) table, set the following values for the properties:

   System Property	Value
   itsm.telegram_bot.swarming_session	true
   itsm.telegram_bot.mid_server_id	The ID of the MID Script record created in Step 1 of the On the Administrator's server section of this article.
   itsm.telegram_bot.mid_create_group_script_id	The ID of the MID Script record for a group creation (createGroup script)
   itsm.telegram_bot.mid_close_group_script_id	The ID of the MID Script record that disables comments in a Telegram group of the swarming session (closeGroup script)
   itsm.telegram_bot.mid_delete_group_script_id	The ID of the MID Script record that deletes a Telegram group of the swarming session (deleteGroup script).

3. Create connections with the For client and Router bots, which must be created in advance via @BotFather in Telegram.

On the Android device 

1. Transfer the start script and the clientinformation.py file with the filled information to the Android device.
2. Using the Pydroid 3 app, run the Python start script using the Telethon library manually.
3. After successfully running the start script, enter a mobile phone number in the command line. Enter the mobile phone number that the Telegram account is registered with.
4. If logging into the account is additionally protected by a password, enter it after you have entered the number.
5. Then enter a verification code. Type it in the command line as soon as you receive it.
6. As a result, the system returns information about the current user in the command line – it means everything has been set correctly.
7. A new swarming.session file and a py_cache folder are created. The lifetime of the file is limited to 7–10 days if it is not used. If the file is out of date, it should be recreated.
8. Transfer the created file and folder to the server in the agent folder. If the server has an older version of swarming.session and a py_cache folder, they must be removed before running the script.

End of setup and testing

1. Play the start script and enter your Telegram account number.
2. From the command line, run the MID agent in the folder that you created earlier. 
3. Go to a major incident form. Click Start Swarming on the top of the page. 

4. In the modal window that appears, there is a list of the recipients of the invitation to the Telegram group. Clicking Start Swarming on the modal window initiates a Telegram group, and a createGroup record appears in the MID Queue (sys_mid_queue) table. The Description field of the createGroup record is automatically filled with the incident number.

   Field	Description
   Request	BotUserId, the incident name and the first message content that is sent to the Swarming Session participants
   Server	TgBotMIDServer.
   Script	The name of the executed script
   Response	A chat ID created and a lint to the group. The chat ID is stored in the Telegram Chat Bindings with Incident (sys_telegram_chat_bindings_with_incidents) table.
   State	Done when executed
   Processed at	Date and time of the script execution
   Description	Incident number

   If the connection with the Telegram bot is lost or failed, (see the ITSM Telegram Bot article for more information) a toast message “Telegram bot not connected” appears, and a modal window does not open.

5. When the incident state is changed to Completed, a closeGroup record in the MID Queue (sys_mid_queue) table appears. Since then, commenting in the group is unavailable, but the participants can read the messages.
   
   

   Field	Description
   Request	A chatId parameter
   Server	TgBotMIDServer
   Script	The name of the executed script
   Response	No response
   State	Done when executed
   Processed at	Date and time of the execution
   Description	Empty

6. When the incident state is changed to Closed, a deleteGroup record in the MID Queue (sys_mid_queue) table appears. The linked Telegram group is deleted.

   Field	Description
   Request	A chatId parameter
   Server	TgBotMIDServer
   Script	The name of the executed script
   Response	No response
   State	Done when executed
   Processed at	Date and time of the execution
   Description	Empty

Troubleshooting

In cases when a swarming group is not created or communication between the Telegram group and the SimpleOne instance is not configured, do one of the following:

• Reconnect the Router bot on the instance with a new token. You can request a token through @BotFatner in Telegram.
• On the server in the MID_agent folder сlose and re-run the start script or create a swarming.session file following the steps above and upload it to this folder again.