Tag: serverless

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5 Constant Lists That Give Context to your Integers and Strings

Enum i a great feature of modern software development. Here you will find five lists that lives in Enums (or Enum-like) that add lots of context for your code. It will look better and cleaner.

Validate all the things: improve your security with input validation!

If there's one habit that can make software more secure, it's probably input validation. Here's how to apply OWASP Proactive Control C5 (Validate All Inputs) to your code.

TypeScript Utility Types: The 6 Most Useful

Write better typescript code by using typescript utility types. Record, Partial, Required, Omit, Pick, Exclude utilities.

Query parameter data types and performance

Recently, I could help solve a “mysterious” performance problem for a customer. The problem turned out to be a badly chosen query parameter type, which led to poor query performance. After working on this customer’s case, I realized that the meaning of the data type of a query parameter is not universally understood, which is why I decided to write this article.

Terraform Best Practices

Building Serverless Applications That Scale The Perfect Amount

Great reasoning about how to think about the architecture that scale on Serverless, thinking about the load and costs.

Run a PHP application on AWS Fargate

An example for a pipeline to configure and deploy a PHP application on AWS Fargate.

6 Signs Your Daily Standups Aren’t Working

Architecture Decision Records help you, your team, and future teams

Decisions are made everyday and often the number of daily decisions make us forget older ones. Keeping a record of the decisions is a great tool to revisit what was done and also be more confident that a change can be made, when a previous statement become obsolete somehow. ADRs are a great tool for a mature software.

Waiting for PostgreSQL 15 – Add support for MERGE SQL command

MERGE SQL commands is able to perform INSERT/UPDATE/DELETE based on a base query and some conditions. This is very useful for some business logic that can be applied directly on the database data.

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CQRS and Event Sourcing implementation in PHP

A walk-through of using CQRS along with Event Sourcering using PHP.

Is my autovacuum configured properly?

Some tips to identify if you need to tune your autovacuum configurations. A proper house cleaning can improve your database health and performance.

Learn how to migrate to the PHP framework Symfony

SensioLabs and Smile released a joint white paper “PHP framework migration: from legacy to Symfony” explaining how to migrate to modern PHP frameworks like Symfony. Find a selection of the key information in this infographic design by SensioLabs.

trufflehog

Find leaked credentials. Search on your repos, source-code, etc.

Why we don’t use a staging environment

Squeaky deploys their code directly from laptops to production environments. The blog posts details their strategies, such as a good suite of tests, clear branch strategy and use of feature flags.

Scaling containers on AWS in 2022

Benchmarking for different types of workloads and scales capabilities on AWS services in 2022: lambda, EKS, ECS, Fargate...

Building well-architected serverless applications: Introduction

Multi-part series addressing each of the questions within the Serverless Lens of the Well-Architected Tool.

Comparing Workflows

Comparision of different types of git flows: centralized, feature branch, gitflow and fork flow. Simple comparision, but easy to get the sense of their use cases.

Construct Hub

Find libraries for AWS Cloud Development Kit (AWS CDK), which generates AWS CloudFormation templates, CDK for Terraform (CDKtf), which generates HashiCorp Terraform configuration files, and CDK for Kubernetes (CDK8s), which generates Kubernetes manifests.

Too much magic?

A good thinking about the "magic" under some awesomeness that are provided by frameworks or libraries. Although they are good for quicker development, there is good to think a little bit more about how and when use it when we have a software that we aim to last longer and get to the phase of greater maintainability.

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OWASP TOP 10

Each year, OWASP (the Open Web Application Security Project) publishes the top ten security vulnerabilities. It represents a broad consensus about the most critical security risks to web applications. Click through on the lessons below to learn more about how to protect against each security risk.

Your Product Owner Is Not Your Product Manager

Your Product Owner Is Not Your Product Manager. Product management has evolved to encompass numerous roles and responsibilities. Leaders looking to hire a product professional must consider what skills and knowledge their business needs demand.

While the market has evolved and will continue to evolve, there remains a need for both a product owner’s and a product manager’s skills and expertise. By considering the nature and scale of a project and understanding the skills and responsibilities associated with each of these distinct roles, leaders can ensure they hire the right person to help them develop and launch products successfully.

Insert-Only Tables and Autovacuum Issues Prior to PostgreSQL 13

If you have write-only tables (or heavy, heavy writes), you may need to check this post. Autovacuum has some issues before PostgreSQL 13, and you might have some great workarounds to use until upgrading your database version.

Enterprise CI/CD best practices

Free book with 23 best practices to apply to your CI/CD pipeline. Those best practices aim to help you design (or use as a checklist) a solid pipeline for your software.

A war story about COVID, cloud, and cost. And why serverless wins.

Nice story about serverless outcomes and potential. Based on COVID-19 pushing of infrastructure and computing services, billing is an important subject. The article has an excellent example of how both scale environment and low bill costs work together on a serverless tech stack.

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How Exception to the Convention Does More Harm than Good

We have a project, and to make it easier, we use specific standards. E.g., we use spaces in every file.

But sometimes, we get to a situation when these standards are stressful. We don't understand them and just want them to bend over. How does our short-term need for pleasure affects long-term well-being of the project?

Splitting a Domain Across Multiple Bounded Contexts

How designing for business opportunities and the rate of change may give you better contexts.

Your Jest Tests are Leaking Memory

Jest is designed in a way that makes memory leaks likely if you’re not actively trying to squash them. For many test suites this isn’t a problem because even if tests leak memory, the tests don’t use enough memory to actually cause a crash. That is, until you add one more test and suddenly the suite comes apart. In this article, we’ll walk through why it’s so easy for Jest to leak memory, how to tell if your tests have a memory leak, and then how to debug and eliminate leaks in your tests. Even if you don’t use Jest, it’s still useful to understand the process in case you need to debug memory leaks in other javascript code.

How to handle flaky tests

Flaky tests are automated tests that are non-deterministic. That means they may pass or fail when executed against the same build artifact or deployed system.

If you’ve ever retried the execution of a failed test run in your CI/CD pipeline tool without any code or config changes in order to get a failing test case to pass, that’s an indicator that you have a flaky test case.

Why Serverless Teams Should Embrace Continuous Refactoring

Serverless adoption brings promises to many organizations! Promises of cost efficiency, engineering efficiency, and business efficiency. However, serverless is not a technology that, once successfully adopted, can be left unattended to rust.

The motivation to adopt serverless should never be to get the job done and never look back. If you adopt it with this attitude you will inevitably get into the legacy migration juggernaut that will haunt you much sooner than you anticipated.

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Operating Lambda: Debugging code – Part 1
Operating Lambda: Debugging configurations – Part 2
Operating Lambda: Debugging configurations – Part 3

In the Operating Lambda series, I cover important topics for developers, architects, and systems administrators who are managing AWS Lambda-based applications. This three-part series discusses core debugging concepts for Lambda-based applications.

Those pesky pull request reviews

They’re everywhere. In Slack: “hey, can I get a review on this?” In email: “Your review is requested!” In JIRA: “8 user stories In-Progress” (but code-complete). In your repository: 5 open pull requests. They’re slowing your delivery. They’re interrupting your developers.

How can we get people to review pull requests faster??

Operating Lambda: Using CloudWatch Logs Insights

In the Operating Lambda series, I cover important topics for developers, architects, and systems administrators who are managing AWS Lambda-based applications. This three-part series discusses monitoring and observability for Lambda-based applications and covers:

  • Using Amazon CloudWatch, CloudWatch Logs Insights, and AWS X-Ray to apply monitoring
    across services.
  • How existing monitoring concepts apply to Lambda-based applications.
  • Troubleshooting application issues in an example walkthrough.
    This post explains how to use CloudWatch Logs Insights in your serverless applications.

CDK Lambda Deployment takes about a minute - how about sub second Function Code Deployment?

Creation of Lambda infrastructure with the CDK is really powerful. Updating the Function code is really slow. Here is a fix for that to get to a sub-second Lambda function deployment time.

Best practices for developing cloud applications with AWS CDK

In this post, we discuss strategies for organizing the development of complex cloud applications with large teams, using the AWS Cloud Development Kit (AWS CDK) as a central technology. AWS CDK allows developers and administrators to define their cloud applications using a familiar programming language, such as TypeScript, Python, Java, or C#. Applications are organized into stages, stacks, and constructs, which allows for modular design techniques in both runtime logic (such as AWS Lambda code or containerized services) and infrastructure components such as Amazon Simple Storage Service (Amazon S3) buckets, Amazon Relational Database Service (Amazon RDS) databases, and network infrastructure.