NEWS.md

In shinychat: Chat UI Component for 'shiny'

shinychat 0.2.0

New features and improvements

• Added new output_markdown_stream() and markdown_stream() functions to allow for streaming markdown content to the client. This is useful for showing Generative AI responses in real-time in a Shiny app, outside of a chat interface. (#23)

• Both chat_ui() and output_markdown_stream() now support arbitrary Shiny UI elements inside of messages. This allows for gathering input from the user (e.g., selectInput()), displaying of rich output (e.g., {htmlwidgets} like {plotly}), and more. (#29)

• Added a new chat_clear() function to clear the chat of all messages. (#25)

• Added chat_app(), chat_mod_ui() and chat_mod_server(). chat_app() takes an ellmer::Chat client and launches a simple Shiny app interface with the chat. chat_mod_ui() and chat_mod_server() replicate the interface as a Shiny module, for easily adding a simple chat interface connected to a specific ellmer::Chat client. (#36)

• The promise returned by chat_append() now resolves to the content streamed into the chat. (#49)

Bug fixes

• chat_append(), chat_append_message() and chat_clear() now all work in Shiny modules without needing to namespace the id of the Chat component. (#37)

• chat_append() now logs and throws a silent error if the stream errors for any reason. This prevents the app from crashing if the stream is interrupted. You can still use promises::catch() to handle the error in your app code if desired. (#46)

shinychat 0.1.1

• Initial CRAN submission.

shinychat documentation built on June 10, 2025, 9:09 a.m.