Matheus Marabesi website, sharing ideas about software development - Listing posts on page 4

Towards a reactjs folder structure based on intent (WIP)

This post is geared towards a reactjs folder structure based on roles, that aims to favor: intent communication Both of them are connected in somehow and in this post I am going to address the issue that is to organize reactjs components in a “meaningful” way, given that the official reactjs documentation does not provide an official file structure [1]. Even tough there are attempts for structuring reactjs [2] apps none has gotten an official stamp, probably it will not happen, but it is possible to become a common standard. The default React create app (RCA) comes with no opinion...

Node.js certification JSNAD - Readable streams, Writable streams, Duplex streams, Transform streams and Passthrough

I already wrote about streams in PHP and how to use them, in the same way this post focuses on the Node.js streams. The aim here is to cover the streams in Node.js, the concepts are fundamentally the same, but each language has its implementation detail. This post is based on the content provided by the hey(node) list to prepare for the nodejs certification exam (JSNAD) [1] Benefits of streams Streams is a collection of data which isn’t available all at once, instead, we can work on that, piece by piece, it improves performance and also avoids the spiking the...

AWS cloud practitioner notes - The cloud journey

Is designed to enable architects developers and users of aws to build secure, performant, resilient and efficient infra structure for their applications. Operational excellence Security Reliability Performance efficiency Cost optimization   Module 10 - AWS well-architected framework The well architected framework [1] is build on five pillars, named: Operational excellence Security Reliability Performance Efficiency Cost Optimization Operational excellence Focused on running and monitoring system to delivery business values, and continually improve process and procedures. Security Priority number, checking integrity of data, protecting systems using encryption. Reliability Recovery planning, such as dynamoDB disruption or EC2 failures, how you handle failure to...

AWS cloud practitioner notes - Migration and innovation

Migrating into the cloud is a process, and it takes a lot of work to get things migrated into aws (or any cloud provider). Module 9 - AWS Cloud Adoption Framework (AWS CAF) AWS Cloud Adoption Framework (AWS CAF) provides advise companies in 6 areas, focused on the people type that you will need for the migration Business People Governance Platform Security Operations AWS CAF Action Plan keeps your organization on track during the migration process. Module 9 - Migration strategies The 6R’s: Re-hosting (lift-and-shift) - moving applications without changes Re-platforming (lift, tinker, and shift) - involves making a few...

AWS cloud practitioner notes - Pricing and support

Module 8 - Free Tier Types of free tiers: Always free 12 months free Trials Special services The AWS lambda service allows for 1 million free invocations per month Amazon S3 is free for 12 months for up to 5GB of standard storage AWS Lightsail offers 1 month trial of up to 750 hours of usage DynamoDB offers 25GB of free storage per month Module 8 - Pricing concepts Pay for what you use Pay less when you reserve Pay less with volume-based discount when you use more Module 8 - Billing dashboard The billing dashboard has the following information:...

AWS cloud practitioner notes - Monitoring and Analytics

AWS offers a variety of tools for analytics and monitoring, such as Amazon CloudWatch, AWS CloudTrail and AWS Trusted Advisor. Monitoring: Observing systems. collecting metrics, and then using data to make decisions. Module 7 - Amazon CloudWatch Amazon CloudWatch allows you to monitor you aws infrastructure and the applications you run in AWS in real time. Metrics are available tied to your resources (cpu utilization of a ec2 instance) With cloudWatch you can: Access all your metrics from a central location Gain visibility across applications and services Reduce MTTR and improve TCO Drive insights to optimize applications CloudWatch Alarms You...

AWS cloud practitioner notes - Security

The AWS security model is shared meaning, AWS is responsible for the security of the cloud, and you, the customer is responsible for the security in the cloud. AWS controls the servers, data centers and all the layers in this section. Module 6 - Shared responsibility model Customer responsibilities Customers are responsible for everything they put in AWS. ____________________________________________________________________________________________ |C|__________________________________ CUSTOMER DATA _______________________________________| |U|________________________________________________________________________________________| |S|_________________ PLATFORM, APPLICATIONS, IDENTITY AND ACCESS MANAGEMENT________________| |T|________________________________________________________________________________________| |O|_________________ OPERATING SYSTEMS, NETWORK AND FIREWALL CONFIGURATION ________________| |M|________________________________________________________________________________________| |E|________________________________________________________________________________________| |R|_ CLIENT-SIDEDATA ENCRYPTION | SERVER SIDE ENCRYPTION | NETWORKING TRAFFIC PROTECTION __| AWS responsibilities AWS is responsible for...

AWS cloud practitioner notes - Storage and databases

This module describes the AWS services for storage and databases. AWS has different services that goes from file storage service to serverless database. Previous: AWS cloud practitioner notes - Networking Module 5 - Instance stores and Amazon Elastic Block Store Block storage level are places to store files, EC2 has different types of storage as well. instance store volumes (physical attached to AWS host) - temporary type [1] EBS are virtual hard drives or EBS volumes - persistent type Incremental snapshots (backup) can be taken from EBS volumes and restored later. Module 5 - Amazon Simple Storage Service (Amazon S3)...

AWS cloud practitioner notes - Networking

Amazon VPC (Virtual Private Cloud) [1][2] lets you provision a isolated section of aws cloud, and deliver aws services that you control. Public and private grouping of resources are known as subnets. Public subnet Private subnet Previous: AWS cloud practitioner notes - Infrastructure and reliability Module 4 - Connectivity to AWS Internet gateway allows public traffic from the internet to access the VPC. ____________________________________________ | AWS cloud | | ___________________________________ | | |VPC | | __________ | __|_________ | | | Client | internet request | |internet | | | |________| --------------------------> |gateway | | | | |__________| | |...

AWS cloud practitioner notes - Infrastructure and reliability

Previously we saw the EC2 computing services that AWS offers and the difference between them. This section focus on the infrastructure and reliability, how AWS offer such service for it’s costumers and how it enables the capacity that AWS has. AWS provides of high availability for customers through multiple regions in a global landscape. Previous: AWS cloud practitioner notes - EC2 Module 3 - global infrastructure AWS provides a range of regions to support highly availability. Compliance (does the data has restrictions to any country? Usually complice states restrictions to where the software should operate.) Proximity (Close to the customer,...