• This is the project to create a simple token-based tweeter-liked web application.
• This project is shutdown now.

https://www.youtube.com/watch?v=Il3r-cv5hOI

This demo shows the following accomplishments :

• Successfully registered by the new user
• Upload two types of post
• Users can only delete the post they created
• Search by keywords and user names
• No need to refresh the web page to see the latest content update

https://youtu.be/mP0AG2MES6w

• Now users can delete images continually without leaving the viewing mode (lightbox enable).
• There will be Delete Fail when the delete button is not disabled on others' post.
• There is no image to delete in the gallery! pop-up window when users delete the empty picture.

• Intellij
• Node.js
• React

• Vscode
• Golang
• ElasticSearch database
• Google Compute Engine and Cloud Storage

• Node.js install and setup: https://docs.microsoft.com/en-us/windows/dev-environment/javascript/nodejs-on-windows

• Using command Terminal in IDE or CMD to create React project and test run:

npx create-react-app {PROJECT_NAME_FOLDER}
cd {PROJECT_NAME_FOLDER}
npm start

• Download and Install golang: https://go.dev/dl/
• Download golang extension in vscode: https://code.visualstudio.com/docs/languages/go

• VM instance firewall rules setup: https://geekflare.com/gcp-firewall-configuration/
• Create VM instance: https://www.youtube.com/watch?v=1FpMe8na64A and use the customized firewall rules into the VM
• Install golang inside the VM:

sudo add-apt-repository ppa:longsleep/golang-backports
sudo apt-get update
sudo apt-get install golang-go

go version

• Using git bash (windows) to create ssh key

ssh-keygen -t rsa -f ~/.ssh/gcekey -C GMAIL_ACCOUNT

• Obtain the ssh key pair

cat ~/.ssh/gcekey.pub

• Go to VM instance to add the SSH key to the instance: https://medium.com/@vipiny35/how-to-add-ssh-keys-in-google-cloud-vm-instance-fa04d9cf7102
• Install SSH remote in vscode: https://code.visualstudio.com/docs/remote/ssh-tutorial
• Config connection:

ssh -i ~/.ssh/gcekey GMAIL_ACOUNT@GCE_EXTERNAL_IP

• Connect to VM now

• In vscode remote terminal,run those lines:

sudo apt install default-jre

java -version

sudo apt install apt-transport-https
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

sudo sh -c 'echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" > /etc/apt/sources.list.d/elastic-7.x.list'
sudo apt update
sudo apt install elasticsearch

• After installation, edit the configuration file

sudo vim /etc/elasticsearch/elasticsearch.yml

• Find those place to uncomment or add

network.host: 0.0.0.0
http.port: {designated port of VM}
discovery.type: single-node
xpack.security.enabled: true

and verify

sudo cat /etc/elasticsearch/elasticsearch.yml|grep "^[^#;]"

• Start Elasticsearch and check status

sudo systemctl enable elasticsearch
sudo systemctl status elasticsearch

• Enable the password and code for the elasticsearch

sudo /usr/share/elasticsearch/bin/elasticsearch-users useradd NEW_USER_NAME -p NEW_PASSWORD -r superuser