Powered by Amazon Bedrock · Native AWS Cloud Persistence

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BuildeX Coder IDE — src/services/bedrockStream.ts
ap-south-1
EXPLORER
src
services
TS bedrockStream.ts
TS dynamoStore.ts
TS authManager.ts
TS bedrockStream.test.ts
{} package.json
⚙ tsconfig.json
TS bedrockStream.ts ● ✕
TS dynamoStore.ts ✕
src › services › bedrockStream.ts › streamBedrockCompletion()
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import { BedrockRuntimeClient, InvokeModelWithResponseStreamCommand } from "@aws-sdk/client-bedrock-runtime";
import { DynamoDBSessionStore } from "./dynamoStore";
 
export async function* streamBedrockCompletion(prompt: string, sessionId: string) {
  const client = new BedrockRuntimeClient({ region: "ap-south-1" });
  const context = await DynamoDBSessionStore.getContext(sessionId);
 
  // Optimized via Claude 3.5 Sonnet: Stream tokens with SigV4
  const command = new InvokeModelWithResponseStreamCommand({
    modelId: "anthropic.claude-3-5-sonnet-20241022-v2:0",
    contentType: "application/json",
    body: JSON.stringify({ prompt, max_tokens: 4096, prompt_cache: true })
  });
 
  const response = await client.send(command);
  for await (const chunk of response.body!) {
    yield JSON.parse(new TextDecoder().decode(chunk.chunk?.bytes)).delta?.text ?? "";
  }
}
zsh
Yusha@MacBook-Air:~/buildex-project (main)$ npm run test:bedrock▌
> buildex-aws@1.0.0 test:bedrock
> vitest run src/services/bedrockStream.test.ts
✓ src/services/bedrockStream.test.ts (3 tests) 318ms
   ✓ authenticate AWS SigV4 credentials (ap-south-1) (42ms)
   ✓ stream Claude 3.5 Sonnet tokens via Bedrock Runtime (186ms)
   ✓ persist session context in DynamoDB buildex_chats (89ms)
Test Files 1 passed (1) | Tests 3 passed (3) | Duration 412ms
B Bedrock Assistant
Claude 3.5 Sonnet
Refactor bedrockStream.ts to add streaming & token caching
Claude 3.5 Sonnet via Amazon Bedrock 184ms · 412 tok
Verified AWS SigV4 credentials. Optimized streaming pipeline using Amazon Nova Micro and DynamoDB token caching:
src/services/bedrockStream.ts Apply to Editor 
+ import { InvokeModelWithResponseStreamCommand }
+ prompt_cache: true,
+ max_tokens: 4096
Step-by-step — what do you want to learn?
main* 0 0 ⚡ 500 / 500 Credits · DynamoDB Synced
TypeScript UTF-8 Ln 12, Col 4 BuildeX
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Architecture

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BuildeX marries the speed of Monaco Editor with native AWS cloud infrastructure.

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Active in region ap-south-1

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