The provider in ethers is an abstraction of the read-only connection to the eth network. Can read blockchain status such as accounts, blocks, transaction information, event logs, and execute read-only code through call

Encapsulates all operations on the account.

Is a program deployed to the blockchain that contains code and allocated read-write storage

Any modification to the status on the blockchain requires a transaction

When the transaction is submitted, it will be queued in the memory pool and wait for the Validator to confirm whether to process the transaction.

The modification of the transaction will only be executed once when it is packaged into the blockchain, and a receipt will be generated. The receipt contains detailed transaction information, including the block, the fee and gas actually used, the events generated, and whether it was successful/rolled back.

wei

gwei

Ethereum Name Service. A bit like dns, used to map human-readable names such as "alice.eth" to eth addresses/cryptocurrency addresses/content hashes/metadata.

Connect metamask/other injection providers

Connect to custom rpc, such as development nodes or third-party services

read status

Send transaction

contract

Provider is the connection provider for eth. Metamask has a built-in provider. Ethers can perform read-only queries on eth by using the built-in provider of metamask.