158 lines
4.7 KiB
Markdown
158 lines
4.7 KiB
Markdown
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-----
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Documentation: [html](https://docs-beta.ethers.io/)
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-----
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Making Your Own
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===============
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CLI
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---
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#### **addPlugin**( command , pluginClass ) => *void*
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Add a *plugin* class for the *command*. After all options and flags have been consumed, the first argument will be consumed and the associated plugin class will be instantiated and run.
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#### **setPlugin**( pluginClass ) => *void*
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Set a dedicated [Plugin](/v5/cli/plugin/#cli-plugin) class which will handle all input. This may not be used in conjuction with addPlugin and will not automatically accept a command from the arguments.
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#### **showUsage**( [ message = "" [ , status = 0 ] ] ) => *never*
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Shows the usage help screen for the CLI and terminates.
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#### **run**( args ) => *Promise< void >*
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Usually the value of *args* passed in will be `process.argv.slice(2)`.
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Plugin
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------
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#### *plugin* . **network** => *[Network](/v5/api/providers/types/#providers-Network)*
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The network this plugin is running for.
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#### *plugin* . **provider** => *[Provider](/v5/api/providers/provider/)*
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The provider for this plugin is running for.
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#### *plugin* . **accounts** => *Array< [Signer](/v5/api/signer/#Signer) >*
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The accounts passed into the plugin using `--account`, `--account-rpc` and `--account-void` which this plugin can use.
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#### *plugin* . **gasLimit** => *[BigNumber](/v5/api/utils/bignumber/)*
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The gas limit this plugin should use. This is null if unspecified.
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#### *plugin* . **gasPrice** => *[BigNumber](/v5/api/utils/bignumber/)*
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The gas price this plugin should use. This is null if unspecified.
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#### *plugin* . **nonce** => *number*
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The initial nonce for the account this plugin should use.
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### Methods
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#### *plugin* . **prepareOptions**( argParser [ , verifyOnly = false ] ) => *Promise< void >*
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#### *plugin* . **prepareArgs**( args ) => *Promise< void >*
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#### *plugin* . **run**( ) => *Promise< void >*
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#### *plugin* . **getAddress**( addressOrName [ , message = "" , [ allowZero = false ] ] ) => *Promise< string >*
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A plugin should use this method to resolve an address. If the resovled address is the zero address and *allowZero* is not true, an error is raised.
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#### *plugin* . **dump**( header , info ) => *void*
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Dumps the contents of *info* to the console with a *header* in a nicely formatted style. In the future, plugins may support a JSON output format which will automatically work with this method.
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#### *plugin* . **throwUsageError**( [ message = "" ] ) => *never*
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Stops exectuion of the plugin and shows the help screen of the plugin with the optional *message*.
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#### *plugin* . **throwError**( message ) => *never*
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Stops execution of the plugin and shows *message*.
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### Static Methods
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#### *Plugin* . **getHelp** => *Help*
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Each subclass should implement this static method which is used to generate the help screen.
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#### *Plugin* . **getOptionHelp** => *Array< Help >*
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Each subclass should implement this static method if it supports additional options which is used to generate the help screen.
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ArgParser
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---------
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```
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/home/ethers> ethers --account wallet.json --yes send ricmoo.eth 1.0
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# An Option ----------^ ^ ^
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# - name = "account" | |
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# - value = "wallet.json" | |
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# A Flag -----------------------------------+ |
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# - name = "yes" |
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# - value = true |
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# Arguments ------------------------------------+
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# - count = 3
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# - [ "send", "ricmoo.eth", "1.0" ]
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```
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Flags are simple binary options (such as the `--yes`), which are true if present otherwise false.
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Options require a single parameter follow them on the command line (such as `--account wallet.json`, which nhas the name `account` and the value `wallet.json`)
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Arguments are all other values on the command line, and are not accessed through the **ArgParser** directly.
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When a CLI is run, an **ArgParser** is used to validate the command line by using prepareOptions, which consumes all flags and options leaving only the arguments behind, which are then passed into prepareArgs.
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#### *argParser* . **consumeFlag**( name ) => *boolean*
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Remove the flag *name* and return true if it is present.
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#### *argParser* . **consumeMultiOptions**( names ) => *Array< {name:string,value:string} >*
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Remove all options which match any name in the Array of *names* with their values returning the list (in order) of values.
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#### *argParser* . **consumeOption**( name ) => *string*
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Remove the option with its value for *name* and return the value. This will throw a UsageError if the option is included multiple times.
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#### *argParser* . **consumeOptions**( name ) => *Array< string >*
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Remove all options with their values for *name* and return the list (in order) of values.
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