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sebastian
sebastian

48 Followers

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Jul 9, 2021

Enabling your peers to upload file to your S3 bucket

Often I am faced with a situation where I need my peers to upload files to my S3 bucket. The easiest solution was to create a pre-signed S3 URL and have my peers use it to upload the files. However, this creates 2 challenges. First, the owner of the S3…

Upload Files To S3

2 min read

Upload Files To S3

2 min read


Nov 27, 2020

Modern application in startup

NOTE: This is a summary of https://aws.amazon.com/startups/modern-application-development/ that is written to help explain the concept to myself. Introduction Modern applications are accelerating how startup build customer value. In order to compete in the new world, startup must be able to create better experience at a quicker pace. …

Modern Application

5 min read

Modern application in startup
Modern application in startup
Modern Application

5 min read


Oct 4, 2020

Creating a carousell alert chat bot with AWS

During my stay-home-notice, I wanted to build something using AWS. One day, my wife mentioned to me about a chat bot (created by Zing Zai@) to provide filtered listing information directly to your telegram and I decided to build upon it. TLDR Open telegram and search for the bot : @llesc_bot …

Carousell Alert

3 min read

Creating a carousell alert chat bot with AWS
Creating a carousell alert chat bot with AWS
Carousell Alert

3 min read


Sep 28, 2020

Setting env variable in npm package.json

Setting up env variable in npm script is an easy way to run scripts with the proper env variable setup. This pattern allow us to abstract sensitive information from code and provide customization based on the individual needs. A classical pattern use in npm script will look like this "scripts"…

NPM

1 min read

NPM

1 min read


Sep 22, 2020

Getting a list of users from Cognito using Lambda

So I have a web app that uses AWS Cognito for user management. Recently, I needed to retrieve a list of users from AWS Cognito User Pool. This is a simple task if you the luxury of a backend-server that could interact directly with AWS. As I was building an…

Aws Cognito

1 min read

Aws Cognito

1 min read


Sep 22, 2020

Testing API gateway + Cognito

I needed a lambda function and expose it through an api gateway for my web client. Surprisingly, this was easily done through amplify CLI. The interactive console makes creating the necessary assets easy. By answering a few questions and performing a simple. > amplify init > amplify add api .... > amplify push…

Aws Cognito

2 min read

Testing API gateway + Cognito
Testing API gateway + Cognito
Aws Cognito

2 min read


Sep 4, 2020

Autocomplete for AWS cli in zsh

As a developer, I want to have an autocomplete feature for aws cli. Luckily, I found https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-completion.html However, simply adding this 2 line in ~/.zshrc did not work for me autoload bashcompinit && bashcompinit complete -C '/usr/local/bin/aws_completer' aws and I got this error complete:13: command not found: compdef I found out that I need to activate the completion system in zsh using

Aws Cli

1 min read

Aws Cli

1 min read


Jan 29, 2017

5 Lessons from my first NPM package

Lesson 1 : Make it simple Making things public requires things to be simple. Like teaching a little boy how to use his spoon to scoop up the food on the table. I imagine myself as the very same guy who would look into library codes to understand what the original creator was thinking. …

JavaScript

4 min read

5 Lessons from my first NPM package
5 Lessons from my first NPM package
JavaScript

4 min read


Dec 27, 2016

Lessons in redux : Dispatching object

Dispatching an action in Redux is simple. Looking at the documentation, the recommended property in an object is ‘type’ //Action creators are exactly that—functions that create actions function addTodo(text) { return { type: ADD_TODO, text: "Add this to todo list" } } and we could simply pass the object to…

React

2 min read

React

2 min read


Jun 30, 2016

Search Engine Optimization

Moving to react has its quirks especially for SEO team. 2 main problem It only works with clients that has javascript enabled Not able to be crawled by Search Engine Now we got problems, lets start our research Times have changed. Today, as long as you’re not blocking Googlebot from crawling your JavaScript…

Web Development

5 min read

Search Engine Optimization
Search Engine Optimization
Web Development

5 min read

sebastian

sebastian

48 Followers
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