@uncloud/debug

| ⚡️ Fix bugs 10x faster with the first serverless debugger

| uncloud debug is currently in private beta. Sign up for the waitinglist → here

Features

• 🔎 Observe what's going on in your lambdas - uncloud debug gives you a holistic view of what's happening in your lambdas - from trigger events to AWS SDK calls
• ⚡️ Stop raising debug levels - uncloud debug was built to help you understand all the steps that led up to an error instead of just showing you the error itself
• 👩🏻‍💻 Easy to integrate - Built by software developers for software developers, uncloud debug is a breeze to integrate
• 🚀 No more Cloudwatch logging - All logs are sent directly to uncloud debug so you don't have to worry about digging through CloudWatch Logs (or spend a fortune on them)
• ✨ BYOAWS - uncloud debug runs in your own AWS account - no need to worry about data privacy or security

Example

import { DynamoDBClient, UpdateItemCommand } from "@aws-sdk/client-dynamodb";
import { addDebugMiddleware, debug, lambdaWrapper } from "@uncloud/debug";

// Step #1 - Wrap your lambda handler to start recording traces
exports.handler = lambdaWrapper(handler)

async function handler (event: any) {
  const db = new DynamoDBClient({
    region: 'eu-central-1',
  });

  // Step #2 - Add the debug middleware to your AWS SDK v3 clients
  addDebugMiddleware(db)

  const result = await db.send(new UpdateItemCommand({
    TableName: `${process.env.TABLE_NAME}`,
    Key: { id: { S: 'counter' } },
    UpdateExpression: 'ADD #value :value',
    ExpressionAttributeNames: {
      '#value': 'value',
    },
    ExpressionAttributeValues: {
      ':value': { N: '1' },
    },
    ReturnValues: 'UPDATED_NEW'
  }))

  // Step #3 - Add log messages to your traces
  debug('Successfully updated counter', { result })

  return 'OK'
};

Quick reference

lambdaWrapper(handler: Handler): Handler

Takes a lambda handler and returns a wrapped handler that starts recording traces in uncloud debug.

addDebugMiddleware(client: Client)

Takes an AWS SDK v3 client and adds the debug middleware to it. This lets you see AWS SDK calls in your traces.

debug(...args: unknown[])

Adds a log message to the current trace. You can optionally include additional metadata in the log messages by passing in an object as the last argument.

Contact

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