Webhooks are one of a few ways web applications can communicate with each other. It allows you to send real-time data from one application to another whenever a given event occurs.
This is how PayPal tells your accounting app when your clients pay you, how Twilio routes phone calls to your number, and how WooCommerce can notify you about new orders in Slack.
Let’s implement a webhook to send data from ERPNext to another application.
Cron is a classic utility found on Linux and UNIX systems for running tasks at pre-determined times or intervals. These tasks are referred to as Cron tasks or Cron jobs. In this video, I will show you how to schedule tasks to run in the future. We will use Ubuntu in this example.
In this ERPNext / Frappe Framework tutorial, I will show you how you can automate actions with Hooks by executing controller methods. Here, we will use hooks to trigger changes in other DocTypes when we save the document we are working on. On saving the document, we want to open a record on another document and save it as well.
Watch on YouTube
Let me first remind you that ERPNext rides on top of the Frappe framework. Making API calls from any part of ERPNext or the frappe framework is not any different from how you would do it say in Django. In this episode, I will do the basic API calls you can make. This will however give you a general overview on how to work with any API.
How can I install MariaDB 10.5 on Ubuntu 20.04 (Focal Fossa) server?. MariaDB is a popular drop-in replacement of MySQL database server with more features, new storage engines, and better performance. You can check a complete list of MariaDB 10.5 features from the official website. The MariaDB database server is published as free and open source software under the General Public License version 2.
To install MariaDB 10.5 on Ubuntu 20.04, you need to add MariaDB repository on to the system. Then the installation of MariaDB 10.5 on Ubuntu 20.04 will be done from the APT repository added without any issues.
Ensure your system is updated and install software-properties-common package.
sudo apt update && sudo apt upgrade
sudo apt -y install software-properties-commonRun the command below to add Repository Key to the system:
sudo apt-key adv --fetch-keys 'https://mariadb.org/mariadb_release_signing_key.asc'After importation of repository GPG key, add the APT repository by running the following command:
sudo add-apt-repository 'deb [arch=amd64] http://mariadb.mirror.globo.tech/repo/10.5/ubuntu focal main'The last step is the installation of MariaDB Server:
sudo apt update
sudo apt install mariadb-server mariadb-clientHit the y key to accept installation of MariaDB 10.5 on Ubuntu 20.04 Linux.
The following additional packages will be installed:
galera-4 libcgi-fast-perl libcgi-pm-perl libdbd-mariadb-perl libdbi-perl libencode-locale-perl libfcgi-perl libhtml-parser-perl libhtml-tagset-perl
libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libmariadb3 libmysqlclient21
libterm-readkey-perl libtimedate-perl liburi-perl mariadb-client-10.5 mariadb-client-core-10.5 mariadb-common mariadb-server-10.5
mariadb-server-core-10.5 mysql-common socat
Suggested packages:
libclone-perl libmldbm-perl libnet-daemon-perl libsql-statement-perl libdata-dump-perl libipc-sharedcache-perl libwww-perl mailx mariadb-test
tinyca
The following NEW packages will be installed:
galera-4 libcgi-fast-perl libcgi-pm-perl libdbd-mariadb-perl libdbi-perl libencode-locale-perl libfcgi-perl libhtml-parser-perl libhtml-tagset-perl
libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libmariadb3 libmysqlclient21
libterm-readkey-perl libtimedate-perl liburi-perl mariadb-client mariadb-client-10.5 mariadb-client-core-10.5 mariadb-common mariadb-server
mariadb-server-10.5 mariadb-server-core-10.5 mysql-common socat
0 upgraded, 28 newly installed, 0 to remove and 0 not upgraded.
Need to get 29.5 MB of archives.
After this operation, 229 MB of additional disk space will be used.
Do you want to continue? [Y/n] yYou have to manually run the MySQL hardening script.
$ sudo mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
haven't set the root password yet, you should just press enter here.
Enter current password for root (enter for none):
OK, successfully used password, moving on...
Setting the root password or using the unix_socket ensures that nobody
can log into the MariaDB root user without the proper authorisation.
You already have your root account protected, so you can safely answer 'n'.
Switch to unix_socket authentication [Y/n] y
Enabled successfully!
Reloading privilege tables..
... Success!
You already have your root account protected, so you can safely answer 'n'.
Change the root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y
... Success!
By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] y
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!The database service should be started automatically after installation.
$ systemctl status mysql
● mariadb.service - MariaDB 10.5.2 database server
Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/mariadb.service.d
└─migrated-from-my.cnf-settings.conf
Active: active (running) since Sat 2020-04-25 23:57:39 UTC; 2min 8s ago
Docs: man:mysqld(8)
https://mariadb.com/kb/en/library/systemd/
Main PID: 4309 (mysqld)
Status: "Taking your SQL requests now..."
Tasks: 11 (limit: 2344)
Memory: 82.5M
CGroup: /system.slice/mariadb.service
└─4309 /usr/sbin/mysqld
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: mysql
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: performance_schema
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: Phase 6/7: Checking and upgrading tables
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: Processing databases
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: information_schema
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: performance_schema
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: Phase 7/7: Running 'FLUSH PRIVILEGES'
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[4332]: OK
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[5138]: Checking for insecure root accounts.
Apr 25 23:57:44 ubuntu20 /etc/mysql/debian-start[5142]: Triggering myisam-recover for all MyISAM tables and aria-recover for all Aria tablesTest login to MariaDB shell using mysql command:
$ mysql -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 56
Server version: 10.5.2-MariaDB-1:10.5.2+maria~focal-log mariadb.org binary distribution
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> Check version using the command:
MariaDB [(none)]> SELECT VERSION(); +-----------------------------------------+ | VERSION() | +-----------------------------------------+ | 10.5.2-MariaDB-1:10.5.2+maria~focal-log | +-----------------------------------------+ 1 row in set (0.000 sec) MariaDB [(none)]>