Smart Contract Interactions using clio

Overview

In the article you’ll learn how to execute actions on a contract with the clio tool. It guides you through inserting and updating records, checking updates, and testing out behavior on unauthorized change attempt.

Prerequisites

• Installation and Development Environment Setup
• Company contract tutorial
• Two new accounts jack and nick

REMINDER

The install process sets up the wallet for the root user. To interact with clio, ensure you are on the root user. Run sudo su - to switch to the root user and before proceeding with the tutorial.

clio create account sysio jack $PUBLIC_KEY -p sysio@active 
clio create account sysio nick $PUBLIC_KEY -p sysio@active

Steps

Step 1: Insert a record

First, let’s have Jack insert or update his own record.

clio push action company upsertemp '["jack", "Jack Sparrow", "[email protected]", "active"]' -p jack@active

Output:

You could use block explorer to inspect the table and the transactions.

Step 2: Perfom an update

Next, we update Jack’s record,

clio push action company upsertemp '["jack", "Jack Nicholson", "[email protected]", "active"]' -p jack@active

Output:

Post-Action Check:

• Inspect Logs to ensure the update was executed. • Inspect Table to see Jack’s updated record.

Step 3: Retrieve all users

clio push action company getallemp '{}' -p jack@active

Ouput:

Step 4: Attempt unauthorized transaction

clio push action company upsertemp '["nick", "Nick Fury", "[email protected]", "active"]' -p jack@active

This should fail since Jack should not be able to add records for other users because the contract enforces proper authorization via require_auth().

To insert Nick's record execute the following command:

clio push action company upsertemp '["nick", "Nick Fury", "[email protected]", "active"]' -p nick@active