Preparation

To use this price feed script, the following dependencies and packages should be installed.

sudo apt-get install libffi-dev libssl-dev python3-dev python3-pip
sudo pip3 install python-dateutil
sudo pip3 install steem

In addition, you should run cli_wallet by using the following command

cli_wallet -s ws://localhost:8090 -H 127.0.0.1:8092 --rpc-http-allowip=127.0.0.1

Installation

Copy the code in this link and paste as steemfeed.py in your witness server.

Configuration

Then, edit the steemfeed.py to configure. We have four items under Config category in the code. interval, freq, null_price, witness

• interval: Interval of publishing price feed. The default value is one hour (3600 seconds)
• freq: Frequency of parsing trade history. Please be noticed that it can parse only 200 last trading history (Bittrex), so as trading is active you may need to decrease this frequency value.
• witness: Enter YOUR WITNESS ID here
• null_price: Set this manually to the current price.

Run

Then, run this code in a separate screen

screen -dmS steemfeed python3 ./steemfeed.py