EOS_Inventory_Manager

EOS Smart Contract for creating a blockchain based inventory.

Basic Idea and Use Case

Let’s say you have a video game that wants to use EOS for managing a user’s inventory. Here’s a general way of how this could potentially be used.

• Issue an Item to an Account
• User Consumes Item In-Game
• Blockchain Moves Item to Queue
• Server checks the queue for new consumption transactions
• If there is a new consumption item in the queue have your server send a transaction out.
• Remove the item from the queue
• Issue the item in-game / use it / etc.

Using the Contract

(Anything in ‘camelCasing’ is a variable)

ie. accountName = YOUR ACCOUNT NAME

Get the accounts table to see all items:

cleos get table accountName accountName accounts

Get the queue table to see all queue’d items.

cleos get table accountName accountName queue

Setup and issue an acccount an item:

Action:

• issueitem

Properties:

• account
• key
• itemname
• type
• memo

  cleos push action accountName issueitem '["accountName", 12345, "Fish", "Food", "Issued Item"]' -p accountName

Consume Items:

Action:

• useitem

Properties:

• account
• key
• memo

  cleos push action accountName useitem '["targetAccount", 12345, "Used Item"]' -p targetAccount

Pop from Queue:

Action:

• popqueue

Properties:

• account
• key
• memo

  cleos push action accountName popqueue '["targetAccount", 12345, "Removed from Queue"]' -p accountName

Clear Tables:

Action:

• clear

Properties:

• option
• memo

Options:

• accounts
• queue

  cleos push action accountName clear '["accounts", "Cleared the table."]' -p accountName