Configuration

The configuration is driven by a set of environment variables that can be defined either in your system environment or in a .env file in the project root.

Required Environment Variables

The following environment variables are used to configure the project. Make sure to set them up as described:

1. TARGET_CHAIN

• Description: Whether to run locally, against the devnet or testnet.
• Accepted Values:
  • "local": Runs a local node.
  • "devnet": Connects to the Fuel Devnet at https://devnet.fuel.network.
  • "testnet": Connects to the Fuel Testnet at https://testnet.fuel.network.

2. DEV_KEY

• Description: When TARGET_CHAIN is set to "devnet", this variable must be set to the private key for the wallet used on the Devnet.

3. TESTNET_KEY

• Description: When TARGET_CHAIN is set to "testnet", this variable must be set to the private key for the wallet used on the Testnet.

4. FORCE_DEPLOY

• Description: A boolean flag that indicates whether to force contract deployment even if a previous instance exists.
• Accepted Values:
  • "true" (case insensitive) to force deployment.
  • Any other value or absence of this variable will default to false.

5. DEPLOY_IN_BLOBS

• Description: A boolean flag that indicates whether the contract should be deployed as blobs (as a loader) or not.
• Accepted Values:
  • "true" (case insensitive) to deploy in blobs.
  • Any other value or absence of this variable will default to false.

Example .env File

Below is an example of what your .env file might look like when targeting the devnet:

TARGET_CHAIN=devnet
DEV_KEY=your_devnet_private_key_here
FORCE_DEPLOY=true
DEPLOY_IN_BLOBS=false

For a local setup, you only need to set TARGET_CHAIN to local:

TARGET_CHAIN=local
FORCE_DEPLOY=false
DEPLOY_IN_BLOBS=false

Running Tests

To run the tests for the project, simply execute:

cargo test -- --test-threads=1