How to Deploy Smart Contracts on GenLayer

 

Prerequisites

Before you begin, ensure you have the following:

•Python Knowledge: Familiarity with Python programming is essential as GenLayer Intelligent Contracts are written in Python.

•Node.js: Required for using the GenLayer Command Line Interface (CLI) and JavaScript Software Development Kit (SDK).

•GenLayer CLI: Install the GenLayer CLI globally using npm: npm install -g genlayer.

•GenLayer JS SDK: If you plan to use the SDK for deployment, install it in your project: npm install genlayer-js.

GenLayer Networks

GenLayer supports three distinct networks, each serving a specific purpose in the development lifecycle




Deployment Methods

GenLayer offers several methods for deploying Intelligent Contracts, catering to different needs and complexities :

1. CLI Direct Deployment

The GenLayer CLI provides a straightforward way to deploy contracts directly from the command line. This method is ideal for quick deployments, simple contracts, and testing scenarios .

Basic Deployment Command

To deploy a single contract, use the genlayer deploy command:


Options:

•--contract <contractPath>: Path to your Python contract file.

•--rpc <rpcUrl>: (Optional ) Custom RPC URL for the target network.

•--args <args...>: (Optional) Constructor arguments for your contract, space-separated.

Example: Deploying a Simple Contract

Let's consider a simple "Hello World" contract (hello.py):



To deploy this contract to the localnet with an initial name "Manus":

1.Set up Localnet (if not already running):


2.Set the target network (optional, can be overridden with --rpc):


3.Deploy the contract:


Upon successful deployment, the CLI will output the transaction hash and the contract address.

Constructor Arguments

When your contract's __init__ method requires arguments, provide them after the --args flag. The CLI automatically handles basic types like strings, numbers, and booleans. For multi-word strings, use quotes .

•String: genlayer deploy --contract my_contract.py --args "Hello World"

•Multiple Arguments: genlayer deploy --contract my_contract.py --args "Contract Name" 100 true

Note: For complex data types (e.g., lists, dictionaries), CLI direct deployment is not recommended. Use Deploy Scripts instead .

2. GenLayer Studio Deployment

GenLayer Studio offers a visual and user-friendly environment for developing and deploying Intelligent Contracts. It simplifies the process by automatically detecting constructor parameters and providing a graphical interface for deployment .

Deployment Steps in GenLayer Studio

1.Load Your Contract: Open your Python contract file within the GenLayer Studio.

2.Set Constructor Parameters: The Studio will automatically detect parameters from your __init__ method. You can adjust these inputs in the Constructor Inputs section. For manual adjustments or complex types, you can switch to JSON format.

3.Deploy: Click the Deploy button. The Studio handles the transaction submission and provides feedback on the deployment status.

3. Deploy Scripts (GenLayer JS SDK)

For complex deployment workflows, multi-contract deployments, or integration with CI/CD pipelines, using deploy scripts with the GenLayer JS SDK is the recommended approach. This method provides greater control and allows for programmatic deployment .

Example: Programmatic Deployment with JS SDK


Deploying smart contracts on GenLayer can be achieved through various methods, each suited for different development stages and complexities. Whether you prefer the simplicity of the CLI, the visual aid of GenLayer Studio, or the programmatic control of the JS SDK, GenLayer provides robust tools to get your Intelligent Contracts up and running. Always ensure your contract is thoroughly tested on localnet and testnet environments before deploying to a production-like network.





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