Repository
https://github.com/artolabs/steemax
SteemAX v0.3
SteemAX is a web application that allows a Steemian to barter with other Steemians for an automatic exchange of upvotes for an agreed duration.
So far, SteemAX has been under rapid development and as of last update is capable of allowing a user to create an invitation, barter on that invitation, accept the invitation, and cancel the invitation. The invitation process is conducted mostly through a Steemian's wallet by sending any amount of SBD along with a specific command attached to the Memo ID. The auto-exchange algorithm is also completed and evaluates and verifies the posts, voting power and vote weight for each upvote exchange. SteemAX was, until now, entirely command-line driven.
Thank you!
I want to say thanks one more time to 
I also want to thank those who have contributed so far to helping to redesign the SteemAX web page.
New Features
SteemAX now
has a live web interface. You can now see the live testing platform for SteemAX by visiting https://steemax.trade. A new module web.py was created to handle the web interface.
uses SimpleSteem for all interactions with the Steem blockchain and ScreenLogger for printing to screen and logging.
uses SteemConnect for account creation and authentication.
Steps taken to accomplish new features
1. I refactored and reformatted the code, then moved all Steem-Python functions into a single class named "steemutil.py".
2. I then refactored further to move this class in a new repository named SimpleSteem. I integrated the SteemConnect core functions into SimpleSteem.
3. I modified the the database module to add new users and to update user's SteemConnect tokens. A new user can now be added at the command prompt as well as logging in via the website using SteemConnect. I also removed the command prompt for accepting an invitation as that is now done solely by sending a command in an SBD send to @Steem-AX.
Add new user
Added to steemax.py
def new_account(self, acct):
'''Prompts user to create an account
when an account is not found
'''
answer = input(("{} has not joined SteemAX.\n"
+ "Would you like to add this "
+ "user [y/n]? ").format(acct))
if answer == "y":
self.key()
db.add_user(self.username, self.privatekey,
self.refreshtoken,
self.accesstoken)
return True
else:
return False
def do_adduser(self, args):
enter = Enter()
acct = enter.key()
db.add_user(acct, enter.privatekey,
enter.refreshtoken,
enter.accesstoken)
Added to axdb.py
if not self.get_results("SELECT * FROM users WHERE 1;"):
self.commit('CREATE TABLE IF NOT EXISTS users '
+ '(ID INT NOT NULL AUTO_INCREMENT PRIMARY KEY, '
+ 'Account varchar(50), PrivateKey varchar(100), '
+ 'RefreshToken varchar(400), Token varchar(400), '
+ 'Time TIMESTAMP DEFAULT CURRENT_TIMESTAMP);')
...
def get_user_token (self, acct):
if self.get_results("SELECT PrivateKey, Token, RefreshToken "
+ "FROM users WHERE Account = %s;",
acct):
return self.dbresults[0][1]
else:
return False
def update_token (self, acct, accesstoken, refreshtoken):
return self.commit("UPDATE users SET Token = %s, "
+ "RefreshToken = %s WHERE Account = %s;",
accesstoken, refreshtoken, acct)
def add_user (self, acct, key, refreshtoken, accesstoken):
return self.commit('INSERT INTO users (Account, PrivateKey, '
+ 'RefreshToken, Token) '
+ 'VALUES (%s, %s, %s, %s);',
acct, key, refreshtoken, accesstoken)
Verify user's SteemConnect Token
Added to steemax.py
def key(self):
''' Prompt user for their private
posting key as found in their
steemit.com wallet or for their
SteemConnect Refresh Token as
given by the auth_url login
'''
msg.message(xverify.steem.connect.auth_url())
while True:
key = input('Your Private Posting Key or'
+ ' SteemConnect Refresh Token: ')
if len(key) < 16:
msg.error_message('The private posting key you '
+ 'entered is too small.')
elif xverify.steem.verify_key(acctname="", tokenkey=key):
self.privatekey = xverify.steem.privatekey
self.refreshtoken = xverify.steem.refreshtoken
self.accesstoken = xverify.steem.accesstoken
self.username = xverify.steem.username
msg.message("Welcome " + self.username)
break
else:
msg.error_message('Could not verify key or token.')
return self.username
4. I then added a new module named "web.py" that contains the methods used to call SteemConnect and verify the refresh token it delivers to the callback URL.
5. I then added the website files which use a very short and concise script to call SteemConnect via SteemAX and initiate the authentication process. All of the website files can be viewed here.
Technology Stack
SteemAX is written to use Python 3.5 and MySQL. The web interface for steemax.trade has been written in HTML and CSS and Javascript.
Roadmap
In the next phase of development I plan to add to the web.py methods that allow the user to create an invite. Accepting and canceling invites will be done solely by attaching a command to a Memo ID in a SBD send to 
Contact
Please contact Mike (Mike-A) on Discord
https://discord.gg/97GKVFC