[core] Adjust sessions how to

docs/site/content/en/docs/how-to/sessions/index.md

@@ -1,44 +1,15 @@
 ---
-title : "Sessions"
+title: "Sessions"
 description: "Sessions"
 lead: ""
 date: 2020-10-06T08:48:45+00:00
 lastmod: 2020-10-06T08:48:45+00:00
 draft: false
-images: []
+images: [ ]
 weight: 200
 ---
 
-## Saving session ![](/images/versions/plus.png)
-
-Plus ![](/images/versions/plus.png) version allows you to save "session" state and avoid scanning QR code everytime when
-you start a container.
-
-### File storage
-
-If you want to save your session and do not scan QR code everytime when you launch WAHA - connect a local file storage
-to the container. WAHA stores authentication information in the directory and reuses it after restart.
-
-[Attach volume](https://docs.docker.com/storage/volumes/) part to the command:
-```bash
--v `pwd`/.sessions:/app/.sessions
-```
-
-The full command would be:
-```bash
-docker run --rm -d -v `pwd`/.sessions:/app/.sessions -p 3000:3000/tcp --name whatsapp-http-api devlikeapro/whatsapp-http-api
-```
-
-### Remote storage ![](/images/versions/soon.png)
-
-If you're interested in using some "remote" storage (like Redis or other Databases) to save sessions - please create an
-issue on GitHub.
-
-For instances, it may be useful if you run WAHA in a cluster of servers and do not have shared file storage
-
-## Multiple sessions ![](/images/versions/plus.png)
-
-If you want to save server's CPU and Memory - run multiple sessions inside one docker container!
+## Session methods
 
 ### Start
 
@@ -65,6 +36,10 @@ The response:
 ]
 ```
 
+You can add `?all=true` parameter to the request `GET /api/session?all=True` it'll show you ALL session,
+including **STOPPED**,
+so you can know which one will be restarted if you set `WHATSAPP_RESTART_ALL_SESSIONS=True` environment variable.
+
 ### Stop
 
 In order to stop a new session - call `POST /api/sessions/stop`
@@ -78,7 +53,6 @@ In order to stop a new session - call `POST /api/sessions/stop`
 }
 ```
 
-
 ### Logout
 
 In order to log out the session - call `POST /api/sessions/logout`
@@ -92,3 +66,53 @@ In order to log out the session - call `POST /api/sessions/logout`
 }
 ```
 
+## Autostart
+If you don't want to call `POST /api/sessions/start` for every session each time when the container restart -
+you can use set of these environment variables to start sessions for you:
+
+- `WHATSAPP_RESTART_ALL_SESSIONS=True`: Set this variable to `True` to start all **STOPPED** sessions after container
+  restarts. By default, this variable is set to `False`.
+  - Please note that this will start all **STOPPED** sessions, not just the sessions that were working before the restart. You can maintain the session list by
+    using `POST /api/session/stop` with the `logout: True` parameter or by calling `POST /api/session/logout` to remove
+    **STOPPED** sessions. You can see all sessions, including **STOPPED** sessions, in the `GET /api/sessions/all=True`
+    response.
+- `WHATSAPP_START_SESSION=session1,session2`: This variable can be used to start sessions with the specified names right
+  after launching the API. Separate session names with a comma.
+
+
+
+## Advanced sessions ![](/images/versions/plus.png)
+
+Plus ![](/images/versions/plus.png) version allows you to save "session" state and avoid scanning QR code everytime when
+you start a container.
+
+### Storage
+
+#### File storage
+
+If you want to save your session and do not scan QR code everytime when you launch WAHA - connect a local file storage
+to the container. WAHA stores authentication information in the directory and reuses it after restart.
+
+[Attach volume](https://docs.docker.com/storage/volumes/) part to the command:
+
+```bash
+-v `pwd`/.sessions:/app/.sessions
+```
+
+The full command would be:
+
+```bash
+docker run --rm -d -v `pwd`/.sessions:/app/.sessions -p 3000:3000/tcp --name whatsapp-http-api devlikeapro/whatsapp-http-api
+```
+
+#### Remote storage ![](/images/versions/soon.png)
+
+If you're interested in using some "remote" storage (like Redis or other Databases) to save sessions - please create an
+issue on GitHub.
+
+For instances, it may be useful if you run WAHA in a cluster of servers and do not have shared file storage
+
+### Multiple sessions
+
+If you want to save server's CPU and Memory - run multiple sessions inside one docker container!
+