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Hands-On Serverless Applications with Go

You're reading from Hands-On Serverless Applications with Go Build real-world, production-ready applications with AWS Lambda

Product type Paperback

Published in Aug 2018

Publisher Packt

ISBN-13 9781789134612

Length 416 pages

Edition 1st Edition

Languages

Go

Tools

AWS

Concepts

Serverless

Author (1):

Mohamed Labouardy

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Table of Contents (22) Chapters

Title Page

Copyright and Credits

Packt Upsell

Contributors

Preface

1. Go Serverless FREE CHAPTER

2. Getting Started with AWS Lambda

3. Developing a Serverless Function with Lambda

4. Setting up API Endpoints with API Gateway

5. Managing Data Persistence with DynamoDB

6. Deploying Your Serverless Application

7. Implementing a CI/CD Pipeline

8. Scaling Up Your Application

9. Building the Frontend with S3

10. Testing Your Serverless Application

11. Monitoring and Troubleshooting

12. Securing Your Serverless Application

13. Designing Cost-Effective Applications

14. Infrastructure as Code

1. Assessments

2. Other Books You May Enjoy

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Index

Monitoring and debugging with AWS CloudWatch

AWS CloudWatch is the easiest and most reliable solution to monitor AWS services, including Lambda functions. It's a centralized monitoring service to gather metrics and logs, and also creates alarms based on them. AWS Lambda automatically monitors Lambda functions on your behalf, reporting metrics through CloudWatch.

CloudWatch metrics

By default, each time you invoke your function through the Lambda console, it reports the key information about the function resource usage, execution duration, and how much time is billed:

A quick real-time insight can be found by clicking on the Monitoring tab. This page will show a graphical representation of multiple CloudWatch metrics. You can control the observable time period in the top-right corner of the graph area:

These metrics include:

Number of times the function has been invoked
Execution time in milliseconds
Error rates, and throttle count due to concurrency reservation and unprocessed events (dead...

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Authors (1)

Mohamed Labouardy

Mohamed Labouardy

Mohamed Labouardy is the CTO and co-founder of Crew, and a DevSecOps evangelist. He is the founder of Komiser, a regular conference speaker, and author of several books around Serverless and Distributed Applications. He is also a contributor to numerous open-source projects such as Jenkins, Docker, and Telegraf.

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