Tenakata USSD Process Flow

Installation

Create EC2 Instance

1. Login to AWS Console and head over to EC2.
2. Launch a new instance with Ubuntu Server 18.04 LTS (HVM), SSD Volume Type - ami-01e7ca2ef94a0ae86 (64-bit x86) / ami-0f1a02d93feff123e (64-bit Arm) machine image and 64-bit (x86) architecture.
3. On the Instance Type step, Select t2 family and t2.micro type.
4. Then, click Review and Launch. It will ask to create a new Key-pair. Download it and store it somewhere safe. You can use it to SSH login into the EC2 instance from your terminal.

Allow traffic to 8080 port

1. Go to Security section of Instance and click on Security groups.
2. In Security Groups, Edit Inbound Rules.
3. Add Rule with following properties

Type: Custom TCP

Port range: 8080

Source: Anywhere

Setup EC2 Instance

Once EC2 Instance has been created, connect to the instance. You can either connect directly from Browser or using SSH from terminal using the key-pair we downloaded in the previous step.

Installing Node and NPM

sudo apt update
sudo apt install nodejs
sudo apt install npm
nodejs -v
curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.35.3/install.sh -o install_nvm.sh
nano install_nvm.sh
bash install_nvm.sh
nvm install 12.16.1
nvm use 12.16.1
nvm alias default 12.16.1

Installing PM2

npm install pm2@latest -g

Installing Redis

https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-redis-on-ubuntu-18-04

Upload Source Code

Upload source code to your preferred location.

Add .env file

Create a .env file at the same level as server.js file.

Paste following content in it. Enter your Redis password that you selected while installing Redis.

PORT=8080
REDIS_SERVER=127.0.0.1
REDIS_SERVER_PORT=6379
REDIS_SERVER_AUTH_PASSWORD=<ENTER YOUR REDIS PASSWORD>
API_ENDPOINT=http://ec2-18-219-231-177.us-east-2.compute.amazonaws.com/index.php

Install Dependencies

Execute following command to install dependencies

npm i

Start Server

pm2 start server.js

Get IP address and DNS

On the Instance Summary/Details page, you can find Public IPv4 address and Public IPv4 DNS.