webthing-day-of-week

This is a read-only Web Thing to determine the day of the week and whether it is a weekday. Use it as an input for rules in your Web of Things gateway.

Explanation

The property days since Sunday counts the days since Sunday. Its values range from 0 on Sundays to 6 on Saturdays. This can be used to test the day of the week.

For simpler checking of the day of the week there is the property is weekday. It’s a true/false value and indicates whether the current day is a weekday (Monday until Friday, inclusive).

Installation

Download the repository into a folder and install the dependencies. You may do this by running:

# Download the repository via git
git clone https://gitlab.com/webthings/webthing-day-of-week.git

# Install project dependencies
npm ci

Run

# Specify a port in Bash (Linux and Mac)
#export PORT=8000
# Specify a port in Batch (Windows)
#SET /A PORT=8000

npm start

This starts a web server on your machine. By default it starts on TCP port 8000. Determine your system’s local IP address and add the Web Thing to your gateway.

Trouble shooting

It fails to start with Error: listen EADDRINUSE :::8000

You already have an instance of this project or another application running on the mentioned TCP port. On a computer a port cannot be assigned to two servers.
On Linux you can identify open TCP ports and the owner process with the command netstat -lnpt.

The server is not reachable from another computer

Ensure that the computers are on the same network. Test their connectivity with the ping command. If they are connected, the computer running the server might block the TCP port with its firewall.