--- id: deploy title: NEAR CLI - Basics sidebar_label: Deploying and Using --- import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; After your contract is ready you can deploy it in the NEAR network for everyone to use it. Let us guide you on how to use the [NEAR CLI](../../../4.tools/cli.md) to deploy your contract and call its methods. :::info On this page, we will only cover the basics of NEAR CLI. For more information visit the [NEAR CLI documentation page](../../../4.tools/cli.md). ::: --- ## Deploying the Contract Thanks to the `NEAR CLI` deploying a contract is as simple as: 1. Compiling the contract to wasm. 2. [Create an account](../../../4.tools/cli.md#create) and [deploy the contract](../../../4.tools/cli.md#deploy) into it using `NEAR CLI`. ### Compile the Contract ```bash yarn build ``` ```bash cargo near build ``` ### Create an Account and Deploy ```bash # Create a new account pre-funded by a faucet near create-account --useFaucet # deploy the contract near deploy ``` ```bash # Create a new account pre-funded by a faucet near account create-account sponsor-by-faucet-service .testnet autogenerate-new-keypair save-to-keychain network-config testnet create # deploy the contract near contract deploy .testnet use-file without-init-call network-config testnet sign-with-keychain ``` ### Deploy in an Existing Account ```bash # login into your account near login # deploy the contract near deploy ``` ```bash # login into your account near account import-account using-web-wallet network-config testnet # deploy the contract near contract deploy use-file without-init-call network-config testnet sign-with-keychain send ``` :::tip You can overwrite a contract by deploying another on top of it. In this case, the account's logic will change, but the state will persist ::: :::info By default `near-cli` uses the `testnet` network. Define `NEAR_ENV=mainnet` to deploy into `mainnet`. ::: :::info Naming Convention for Public-Facing Methods Once the contract is deployed to the network, anyone and any other contract (i.e., any other account on NEAR) can interact with it by calling its methods. Furthermore, any transactions involving the contract will also be included in the network's data stream, which means its activity can also be visible to any who listens to particular events. Considering this, we advise to name methods using `snake_case` in all SDKs as this is compatible with the remainder of the NEAR ecosystem which is predominantly comprised of Rust contracts. ::: --- ## Initializing the Contract If your contract has an [initialization method](/build/smart-contracts/anatomy/storage#initializing-the-state) you can call it to initialize the state. This is not necessary if your contract implements `default` values for the state. ```bash # Call the initialization method (`init` in our examples) near call [] --accountId ``` ```bash # Call the initialization method (`init` in our examples) near contract call-function as-transaction json-args [] prepaid-gas '30 TeraGas' attached-deposit '0 NEAR' sign-as network-config testnet sign-with-keychain send ``` :::info You can initialize your contract [during deployment](#deploying-the-contract) using the `--initFunction` & `--initArgs` arguments. ::: --- ## Calling the Contract Once your contract is deployed you can interact with it right away using [NEAR CLI](../../../4.tools/cli.md).
### View methods View methods are those that perform **read-only** operations. Calling these methods is free, and do not require to specify which account is being used to make the call: ```bash near view ``` ```bash near contract call-function as-read-only text-args '' network-config testnet now ``` :::tip View methods have by default 200 TGAS for execution :::
### Change methods Change methods are those that perform both read and write operations. For these methods we do need to specify the account being used to make the call, since that account will expend GAS in the call. ```bash near call --accountId [--deposit ] [--gas ] ``` ```bash near contract call-function as-transaction json-args prepaid-gas attached-deposit sign-as network-config testnet sign-with-keychain send ```