Add command `/slack join`

For now this only supports known channels, which currently typically
means they have to be referenced in a channel with history loaded.

1 files changed, 9 insertions, 0 deletions

diff --git a/slack/slack_api.py b/slack/slack_api.py
index 4ffb425..8d49e55 100644
--- a/slack/slack_api.py
+++ b/slack/slack_api.py
@@ -26,6 +26,7 @@ if TYPE_CHECKING:
     from slack_api.slack_common import SlackGenericResponse
     from slack_api.slack_conversations_history import SlackConversationsHistoryResponse
     from slack_api.slack_conversations_info import SlackConversationsInfoResponse
+    from slack_api.slack_conversations_join import SlackConversationsJoinResponse
     from slack_api.slack_conversations_members import SlackConversationsMembersResponse
     from slack_api.slack_conversations_open import SlackConversationsOpenResponse
     from slack_api.slack_conversations_replies import SlackConversationsRepliesResponse
@@ -360,6 +361,14 @@ class SlackApi(SlackApiCommon):
             raise SlackApiError(self.workspace, method, response, params)
         return response
 
+    async def conversations_join(self, conversation_id: str):
+        method = "conversations.join"
+        params: Params = {"channel": conversation_id}
+        response: SlackConversationsJoinResponse = await self._fetch(method, params)
+        if response["ok"] is False:
+            raise SlackApiError(self.workspace, method, response, params)
+        return response
+
     async def conversations_close(self, conversation: SlackConversation):
         method = "conversations.close"
         params: Params = {"channel": conversation.id}