Youtube type media sharing platform on Blockchain Stellar's Test Network is used to create new Custom tokens.
NOTE: Front-end is buggy and needs more work. Blockchain module is Stellar! :D
Libraries used:
- Flask
- Flask-WTF
- Jinja2
- WTForms
- stellar-base
###Pre-requisites Before moving on to the blockchain integration, your app should be working without the blockchain.
You can check if it is working by the following commands:
cd <project>
git pull && git fetch
git checkout video_page
git pull
cd app
python3 database.py
cd ../
python3 run.py
Then goto the address shown in the terminal. It would look like this:
http://<address>:<port>
Check if you are able to create user, sign in and stuff
###Blockchain Installation
Change to appropriate branch
git checkout blockchain && git pull
Install dependencies
pip3 install stellar-base
I have changed the table schema for the Table_UserInfo inroder to fit the passphrase in BIP39 format, so you must drop and rebuild the database as follow:.
//from terminal
mysql
mysql> show DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| DB_DApp |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
mysql> drop database DB_DApp;
Query OK, 4 rows affected (2 min 37.45 sec)
mysql> show DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
mysql> \q
cd <project>
cd app
$ python3 database.py
Initialing Database...:
Create tables successfully!
Disconnected successfuly
Successfully Initialed
###Usage
//from project directory run the following
python3 run.py
Create a new user on the GUI
Then goto the terminal and do the following:
mysql> use DB_DApp;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
mysql> DESCRIBE Table_UserInfo;
+----------------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------------+-------------+------+-----+---------+----------------+
| UserID | int(11) | NO | PRI | NULL | auto_increment |
| Username | varchar(50) | NO | PRI | NULL | |
| Passwords | varchar(50) | NO | | NULL | |
| UserUniaddress | text | NO | | NULL | |
| Balance | float | YES | | NULL | |
+----------------+-------------+------+-----+---------+----------------+
5 rows in set (0.00 sec)
mysql> select * from Table_UserInfo;
+--------+----------+-----------+-------------------------------------------------------------------------------+---------+
| UserID | Username | Passwords | UserUniaddress | Balance |
+--------+----------+-----------+-------------------------------------------------------------------------------+---------+
| 2 | surya | surya | denial deny mouse win refuse affair swift mammal thank fossil gravity bicycle | 0 |
+--------+----------+-----------+-------------------------------------------------------------------------------+---------+
1 row in set (0.00 sec)
If you see a long string of text under UserUniaddress like (denial deny mouse win refuse affair swift mammal thank fossil gravity bicycle), then:
- The integration for user signup is working
- your account has been registered with the blockchain test network
- And your passphrase is stored in the database
- We can anytime retreive the details for the account like transactions, balances etc from the testnet (I will be writing further utility functions in the coming days)
###Utilities
Most of the actual blockchain code is in the module called stellar_block.py inside app dir.
I have written a few basic utility functions, you can play with them and from python3 interpreter.
I will be writing code, modifying the app/database for the smart contract transactions on the blockchain.