Tutorials Index Page 1

flask example with POST API endpoint

In this tutorial, we are going to see how to create an API endpoint using flask. The endpoint will only accept POST request and it will use content-type application/json. Learn here how to create a minimal api rest with flask and python.

How to use setup Epson L355 on Ubuntu 18.04

Steps to install Epson L355 on Ubuntu 18.04. You will need to download the official drivers from epson.net (deb file). Use dpkg to install epson-inkjet-printer-201207w_1.0.0-1lsb3.2_amd64.deb. Finally, use the wizard as always. Check here for full details and epson Ubuntu 18.04 drivers.

Using python SQLAlchemy with SQLlite3 tutorial

Learn here how to use SQLIte3 with SQLAlchemy step by step. First, we are going to define some models and then we will see how to connect and make some queries. We are going to learn about the Unit of Work pattern, which is a very important concept on sqlalchemy.

beginner

How to update the Go version

Steps to update go lang to the latest version. Remove your current go and then Go to the [downloads](https://golang.org/dl/) page and download the binary release. finally install it following the steps in this guide.

intermediate

Fast bulk insert with sqlalchemy

SQLAlchemy has some ways to do fask bulk inserts into the database. With this tutorial you will learn how to insert a large number of rows in bulk, using dictionaries or objects.

Gitlab CI register runner on multiple proyects

With gitlab ci if you want to reuse the runner on multiple projects you will need to be master an both proyects. You will need then to Go to Settings>CI/CD>Runner Settings of Project A and finally Edit the desired runner properties. Uncheck the "Lock to current projects" box. Check here for full detailed steps.

beginner

Bluetooth headset playing low quality on ubuntu 18

If you are using ubuntu and you bluetooth speaks is playing with low quality, check here for the solution. You need to edit the file /etc/bluetooth/audio.conf and change some configurations. Read here for more details.

[SOLVED] Repository changed its 'Origin' value from 'Google, Inc.' to 'Google LLC'

When you use apt or apt-get and you are using official chrome repos, you could see this message: Repository changed its 'Origin' value from 'Google, Inc.' to 'Google LLC'. SOLUTION -> sudo apt update and answer yes

beginner

How to fix bluetooth speakers on ubuntu

In this tutorial, we try many ways to fix problems with bluetooth speaks on Ubuntu Linux. Most of the issues are solved on the file /etc/bluetooth/main.conf changing #AutoEnable=false to AutoEnable=true. Check here for more alternatives.

Solved: Failed - Module 'DevicePowerOn' power on failed

Check here the solution of the error "Failed - Module 'DevicePowerOn' power on failed." when the virtual machine was started.