paws-v0.8.0

Paws 0.8.0 CRAN Release 🎊🥳🎉

Features

• Streaming Support 🎊🥳🎉: Paws now returns PawsStreamHandler for streaming services. Learn more. This can be used in multiple ways:
  1. Passing a function to it similar to the apply functions.
  2. Returning the httr2::req_performance_connection and parsing with Paws built-in parser paws_stream_parser or using httr2::resp_stream_aws.

Example:

library(paws)

client <- bedrockruntime(region = "us-east-1")

model_id <- "amazon.titan-text-lite-v1:0"
conversation <- list(
  list(
    role = "user",
    content = list(list(text = "What's your name?"))
  )
)

resp <- client$converse_stream(
  modelId = model_id,
  messages = conversation
)

resp$stream(\(chunk) chunk$contentBlockDelta$delta$text)
# Note: stream will close connection after all chunks are read

resp <- client$converse_stream(
  modelId = model_id,
  messages = conversation
)

# Return httr2 req_performance_connection for full flexibility
con <- resp$stream(.connection = TRUE)

# Handle connection object using paws_stream_parser
while (!is.null(chunk <- paws_stream_parser(con))) {
  print(chunk$contentBlockDelta$delta$text)
}
# Note: paws_stream_parser will close connection after all chunks are read

# Or handle connection using httr2::resp_stream_aws
while (!is.null(chunk <- resp_stream_aws(con))) {
  str(chunk)
}
close(con)

Backend changes:

• Paws has migrated from aws sdk js to aws sdk python botocore AWS JSONs, which has led to a change to the endpoint regex.

Services

New Support

• bedrock-data-automation
• bedrock-data-automation-runtime
• codeconnections

Deprecated Services

• nimblestudio: AWS no longer supports Nimble. Learn more
• worklink: AWS no longer supports WorkLink.
• cloudwatchevents: AWS CloudWatch Events have been move to EventBridge to align with AWS services.