Inspect a smart contract instance

This guide explains how to inspect a smart contract instance. Inspecting an instance shows you its name, owner, module reference, balance, and receive-functions:

Preparation

Make sure that you are running a node using the latest Concordium software and that you have a smart-contract instance on-chain to inspect.

See also

For how to deploy a smart contract module see Deploy a smart contract module and for how to create an instance Initialize a smart contract instance.

Inspection

To inspect, or show, information about a smart contract instance with the address index 0, run the following command:

$concordium-client contract show 0

The output should be similar to the following:

Contract:        my_contract
Owner:           '4Lh8CPhbL2XEn55RMjKii2XCXngdAC7wRLL2CNjq33EG9TiWxj' (default)
ModuleReference: 'd121f262f3d34b9737faa5ded2135cf0b994c9c32fe90d7f11fae7cd31441e86'
Balance:         0.000000 CCD
Methods:
 - receive_one
     Parameter:
         "<String>"
     Return value:
         "<UInt64>"
 - receive_two
     Return value:
         "<Bool>"

See also

For more information about contract instance addresses, see References on-chain.

The parameter and return values for a method is only shown if the show command has access to a contract schema that contains that information for the method. If the schema is embedded, it will be used implicitly. Otherwise, a schema can be provided using --schema /path/to/schema.bin parameter.

Note

A schema file provided using the --schema parameter will take precedence over an embedded schema.

See also

Read more about why and how to use smart contract schemas.