Add live chat to an React native/typescript mobile app

We have an app for sports fans. We want to build a group chat functionality that enables users to create a discrete group chat for each group they are a member of. Fans can use these chats to follow along live events/games/post game/discussions. We have the figma design for the chat. The iOS app is ready to integrate chat feature. You can use some of the existing chat APIs such as: GetStream API: [login to view URL] Features: Chat is initiated by tapping the “create chat button” at the top of the group feed To set up the chat, fans give it a title and are prompted to invite fans to the chat Invited fans receive a notification they are invited to the chat Fans can invite people not on Allegiance to the chat, this sends a link to download Allegiance The chat tile appearance changes when it is live All members of the group receive a notification that there is a new chat in the group When live, the chat appears as a tile at the top of the group feed, above pinned posts Users tap the chat tile to enter the chat Chat invite notifications / chat started notifications deep link directly into the chat Every group on the platform can create a group chat within their group All group members can create a chat but there can only be one group chat within each group at a time To close the chat, the chat creator either closes the chat manually or it times out from inactivity Ex - group chat closes after 5 minutes of inactivity and a user can create a new one All members of the group can join the group chat If you’re not a member of the group, you cannot join the group chat until you’ve joined the group Users are prompted to join the group if they are not a member of the group and try to join the group chat Users can: Post text Post emojis Post GIFs (GIF keyboard) Post media (photos/videos) - secondary React to messages - give posts a star Invite other users to the chat - this sends them a chat invite notification Share invites to the chat to non-users that prompt them to download the app The chat and its history disappears when the chat is closed, it is ephemeral We may need to store this for trust and safety purposes, but the idea is that there is no standing history of the chat over time Users can report messages and users in the chat If users navigate to the app and the chat has ended, they are given an error message