Tact Hello World

Tact contract structure

Tact's facts #2

tact-guide-template is basic demo project for developing smart contract on Tact language. Let's learn general things about this:

• By default, this project has a number of additional frameworks used in it, that specified in yarn.
• Most important directory for us placed in tact-guide-template/sources/ directory and contents following:

+--tact-guide-template
|   +--sources
|   |  +-- contract.deploy.ts
|   |  +-- contract.spec.ts
|   |  +-- contract.tact

• contract.tact - Tact language smart contract will be written here.
• contract.spec.ts - contents tests for using yarn tests for launching local tests. Not necessary part for deployment.
• contract.deploy.ts - contents instructions to generate a deployment link. This link includes all necessary information to deploy our smart contract in blockchain.

When a smart contract is delivered in TON Blockchain as bytecode he becomes deployed.

• As a result we use three yarn commands to work with Tact project:

yarn build # To build contract
yarn test # To test contract
yarn deploy # To deploy contract

Tactical practice #2

Get template from GitHub

Update dependencies in project via yarn:

yarn install

Now check, that everything is ok, input command:

yarn build

This command will initiate the Tact compiler to build the current tact.contract. Currently, the contract has no content, but the compiler should work. The result of success executing this should be seen in your terminal window like the following: