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Use explicit inputs to test a function or query selected EVM entities. Start with a pure function, then substitute the contract-reading function when node access is available.

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Prerequisites

Complete the Quickstart, or use an environment with its connection proxy configured. The client uses PROXY_SOCKET_PATH to reach that proxy. Use the dependencies pinned in the BlockX checkout’s python/pyproject.toml.

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Submit a minimal task

This example returns its arguments without reading a chain. Its block and address are synthetic test values.
Each callList row supplies positional arguments for one function invocation. For a real EVM read, replace the synthetic values with a block and addresses your backend can serve.

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Confirm completion

ReturnValueHandler returns collected outputs in handler_result. Match outputs by their identifiers, not by list position. The task performs no table writes.

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Handle failure

A connection exception does not establish a task’s terminal state. Preserve task.task_id for investigation. A returned failed result includes a failure code; see Query results and handle failures.

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