Deploy smart contracts

Following the principles of Actor model for communication, creating a program is just one of the specific types of transactions that contain a WASM file as a payload.

Uploading a new program (smart-contract) to the blockchain takes place by calling the custom extrinsic gear.uploadProgram(code, salt, initPayload, gasLimit, value). Where:

code: Bytes - binary WASM code.

salt: Bytes - the random data that is added to the hashing process to force their uniqueness.

initPayload: Bytes- the init message payload that will be processed by the init() function during program initialization.

gasLimit: u64 - is the amount of gas that users are willing to spend on processing the upload of a new program.

value: u128 - the value that will be transferred to a balance of the newly created account for the program.

Program submit events

Note: while extrinsics represent information from the outside world, events represent information from the chain. Extrinsics can trigger events.

The extrinsic called to submit a program triggers a series of events. Learn more about events

How to deploy

There are several ways to deploy a program:

Upload via Gear GUI

The easiest way to deploy the program is to use the “Upload program” option in the official website idea.gear-tech.io.

Via gear-js library

Gear-js library provides a simple and intuitive way to connect GEAR Component APIs, including interaction with programs. More details Gear API.

Via gear-program

gear-program is the command line (CLI) utility for interacting with the blockchain network. Refer to gear-program GitHub repo for details.