tornado-packages/ethers.js
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Chris Chinchilla 2020-07-14 14:05:55 +02:00
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docs.wrm/getting-started.wrm
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@ -161,18 +161,18 @@ The [[Contract]] object makes it easier to use an on-chain
Contract as a normal JavaScript object, with the methods Contract as a normal JavaScript object, with the methods
mapped to encoding and decoding data for you. mapped to encoding and decoding data for you.
If you are familiar with Databases, this is similar to an ORM. If you are familiar with Databases, this is similar to an ////Object Relational Mapper// (ORM).
In order to communicate with the Contract on-chain, this class In order to communicate with the Contract on-chain, this class
needs to know what methods are available and how to encode and needs to know what methods are available and how to encode and
decode the data, which is what the //Application Binary Interface// (API) decode the data, which is what the //Application Binary Interface// (API)
provides. provides.
This class is a meta-class, which means its methods are constructed This class is a //meta-class//, which means its methods are constructed
at runtime, when you pass in the ABI to the constructor it uses it at runtime, and when you pass in the ABI to the constructor it uses it
to determine which methods to add. to determine which methods to add.
While a on-chain Contract may have many methods available, you can safely ignore While an on-chain Contract may have many methods available, you can safely ignore
any methods you don't need or use, providing a smaller subset of the ABI to any methods you don't need or use, providing a smaller subset of the ABI to
the contract. the contract.
@ -243,8 +243,8 @@ _heading: State Changing Methods @<getting-started--writing>
_code: Sending DAI @lang<script> _code: Sending DAI @lang<script>
// The DAI Contract is currently connected to the Provider, // The DAI Contract is currently connected to the Provider,
// which is read-only. We need to connect to a Signer, so // which is read-only. You need to connect to a Signer, so
// that we can pay to send state-changing transactions. // that you can pay to send state-changing transactions.
const daiWithSigner = contract.connect(signer); const daiWithSigner = contract.connect(signer);
// Each DAI has 18 decimal places // Each DAI has 18 decimal places
@ -334,7 +334,7 @@ daiContract.queryFilter(filterFrom, 9843470, 9843480)
// number of entries; but they provide some useful examples // number of entries; but they provide some useful examples
// //
// List all transfers I sent in the last 10,000 blocks // List all transfers sent in the last 10,000 blocks
daiContract.queryFilter(filterFrom, -10000) daiContract.queryFilter(filterFrom, -10000)
// List all transfers ever sent to me // List all transfers ever sent to me
@ -350,8 +350,8 @@ const signer = ethers.Wallet.createRandom();
//! //!
// </hide> // </hide>
// To sign a simple string, which can often be used for // To sign a simple string, which are used for
// logging into a service, such as CryptoKitties simply // logging into a service, such as CryptoKitties,
// pass the string in. // pass the string in.
signature = await signer.signMessage("Hello World"); signature = await signer.signMessage("Hello World");
//! async signature //! async signature
@ -362,7 +362,7 @@ signature = await signer.signMessage("Hello World");
// data it MUST be an Array (or TypedArray) // data it MUST be an Array (or TypedArray)
// //
// This string is 66 chacacters long // This string is 66 characters long
message = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef" message = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
// This array representation is 32 bytes long // This array representation is 32 bytes long