ConverseStream

Source: src/AWS/Bedrock/ConverseStream.ts

Runtime binding for bedrock-runtime:ConverseStream — the streaming variant of Converse. The response arrives as an event Stream of ConverseStreamOutput events (messageStart, contentBlockDelta, messageStop, metadata, …) instead of a single message.

The binding grants the function bedrock:InvokeModelWithResponseStream (the IAM action streaming operations authorize against) scoped to exactly the bound models. A model reference may be a foundation-model id, a cross-region inference profile id (e.g. us.amazon.nova-micro-v1:0), or a full Bedrock ARN.

Model access is an account entitlement — enable the model in the Bedrock console (Model access) before invoking, otherwise calls fail with AccessDeniedException.

Streaming a Conversation

// init
const converseStream = yield* Bedrock.ConverseStream("us.amazon.nova-micro-v1:0");

// runtime
const result = yield* converseStream({
  messages: [{ role: "user", content: [{ text: "Say hello." }] }],
  inferenceConfig: { maxTokens: 64 },
});
const events = yield* Stream.runCollect(result.stream ?? Stream.empty);
const text = events
  .map((event) => event.contentBlockDelta?.delta.text ?? "")
  .join("");