Running a short-lived Fuel node with the SDK

You can use the SDK to spin up a local, ideally short-lived Fuel node. Then, you can instantiate a Fuel client, pointing to this node.

{{#include ../../../examples/contracts/src/lib.rs:instantiate_client}}

This approach is ideal for contract testing.

You can also use the test helper setup_test_provider() for this:

{{#include ../../../examples/wallets/src/lib.rs:create_random_wallet}}

You can also use launch_provider_and_get_wallet(), which abstracts away the setup_test_provider() and the wallet creation, all in one single method:

let wallet = launch_provider_and_get_wallet().await?;

Features

Fuel-core lib

The fuel-core-lib feature allows us to run a fuel-core node without installing the fuel-core binary on the local machine. Using the fuel-core-lib feature flag entails downloading all the dependencies needed to run the fuel-core node.

fuels = { version = "0.77.0", features = ["fuel-core-lib"] }

RocksDB

The rocksdb is an additional feature that, when combined with fuel-core-lib, provides persistent storage capabilities while using fuel-core as a library.

fuels = { version = "0.77.0", features = ["rocksdb"] }