47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
_title: Providers
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_section: Providers
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A **Provider** is an abstraction of a connection to the
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Ethereum network, providing a concise, consistent interface
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to standard Ethereum node functionality.
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The ethers.js library provides several options which should
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cover the vast majority of use-cases, but also includes the
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necessary functions and classes for sub-classing if a more
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custom configuration is necessary.
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Most users should be able to simply use the [[get-default-provider]].
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_subsection: Default Provider @<get-default-provider>
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The default provider is the safest, easiest way to begin
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developing on //Ethereum//, and it is also robust enough
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for use in production.
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It creates a [[provider-fallback]] connected to as many backend
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services as possible. When a request is made, it is sent to
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multiple backends simulatenously. As responses from each backend
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are returned, they are checked that they agree. Once a quorum
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has been reached (i.e. enough of the backends agree), the response
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is provided to your application.
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This ensures that if a backend has become out-of-sync, or if it
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has been compromised that its responses are dropped in favor of
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responses that match the majority.
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_property: ethers.getDefaultProvider([ network ]) => [[provider]]
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Returns a new Provider, backed by multiple services, connected
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to //network//. Is no //network// is provided, **homestead**
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(i.e. mainnet) is used.
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_subsection: Provider Documentation
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_toc:
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provider
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jsonrpc-provider
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api-providers
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other
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types
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