<html><head><title>Providers</title><linkrel="stylesheet"type="text/css"href="/static/style.css"></head><body><divclass="sidebar"><divclass="header"><divclass="logo"><ahref="/"><divclass="image"></div><divclass="name">ethers</div><divclass="version">v5.0-beta</div></a></div></div><divclass="toc"><div><divclass="link title"><ahref="/">Documentation</a></div><divclass="base show link depth-1"><ahref="/getting-started/">Getting Started</a></div><divclass="hide link depth-2"><ahref="/getting-started/#installing">Installing</a></div><divclass="hide link depth-2"><ahref="/getting-started/#importing">Importing</a></div><divclass="base show link depth-1"><ahref="/concepts/">Concepts</a></div><divclass="hide link depth-2"><ahref="/concepts/events/">Events</a></div><divclass="hide link depth-2"><ahref="/concepts/gas/">Gas</a></div><divclass="hide link depth-3"><ahref="/concepts/gas/#gas-price">Gas Price</a></div><divclass="hide link depth-3"><ahref="/concepts/gas/#gas-limit">Gas Limit</a></div><divclass="base ancestor show link depth-1"><ahref="/api/">Application Programming Interface</a></div><divclass="show link depth-2"><ahref="/api/contract/">Contracts</a></div><divclass="hide link depth-3"><ahref="/api/contract/#buckets">Buckets</a></div><divclass="show link depth-2"><ahref="/api/signer/">Signers</a></div><divclass="hide link depth-3"><ahref="/api/signer/#signer">Signer</a></div><divclass="hide link depth-3"><ahref="/api/signer/#wallet-inherits-signer">Wallet inherits Signer</a></div><divclass="myself ancestor ancestor show link depth-2"><ahref="/api/providers/">Providers</a></div><divclass="child show link depth-3"><ahref="/api/providers/provider/">Provider</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#accounts-methods">Accounts Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#blocks-methods">Blocks Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#ethereum-naming-service-(ens)-methods">Ethereum Naming Service (ENS) Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#logs-methods">Logs Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#network-status-methods">Network Status Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#transactions-methods">Transactions Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#event-emitter-methods">Event Emitter Methods</a></div><divclass="hide link depth-4"><ahref="/api/providers/provider/#inspection-methods">Inspection Methods</a></div><divclass="child show link depth-3"><ahref="/api/providers/jsonrpc-provider/">JSON-RPC Provider</a></div><divclass="hide link depth-4"><ahref="/api/providers/jsonrpc-provider/#jsonrpcprovider">JsonRpcProvider</a></div><divclass="hide link depth-4"><ahref="/api/providers/jsonrpc-provider/#jsonrpcsigner">JsonRpcSigner</a></div><divclass="hide link depth-4"><ahref="/api/providers/jsonrpc-provider/#jsonrpcuncheckedsigner">JsonRpcUncheckedSigner</a></div><divclass="child show link depth-3"><ahref="/api/providers/api-providers/">API Providers</a></div><divclass="hide link depth-4"><ahref="/api/providers/api-providers/#etherscanprovider">EtherscanProvider</a></div><divclass="hide link depth-4"><ahref="/api/providers/api-providers/#infuraprovider">InfuraProvider</a></div><divclass="hide link depth-4"><ahref="/api/providers/api-providers/#nodesmithprovider">NodesmithProvider</a></div><divclass="hide link depth-4"><ahref="/api/providers/api-providers/#alchemyprovider">AlchemyProvider</a></div><divclass="child show link depth-3"><ahref="/api/providers/other/">Other Providers</a></div><divclass="hide link depth-4"><ahref="/api/providers/other/#fallbackprovider">FallbackProvider</a></div><divclass="hide link depth-4"><ahref="/api/providers/other/#ipcprovider">IpcProvider</a></div><divclass="child show link depth-3"><ahref="/api/providers/types/">Types</a></div><divclass="hidelinkdepth
<p>A <b>Provider</b> is an abstraction of a connection to the Ethereum network, providing a concise, consistent interface to standard Ethereum node functionality.</p><p>The ethers.js library provides several options which should cover the vast majority of use-cases, but also includes the necessary functions and classes for sub-classing if a more custom configuration is necessary.</p><p>Most users should be able to simply use the <ahref="/api/providers/#get-default-provider">Default Provider</a>.</p>
<p>The default provider is the safest, easiest way to begin developing on <i>Ethereum</i>, and it is also robust enough for use in production.</p><p>It creates a <ahref="/api/providers/other/#provider-fallback">FallbackProvider</a> connected to as many backend services as possible. When a request is made, it is sent to multiple backends simulatenously. As responses from each backend are returned, they are checked that they agree. Once a quorum has been reached (i.e. enough of the backends agree), the response is provided to your application.</p><p>This ensures that if a backend has become out-of-sync, or if it has been compromised that its responses are dropped in favor of responses that match the majority.</p>
<divclass="property"><divclass="signature"><spanclass="path">ethers</span> . <spanclass="method">getDefaultProvider</span> ( [ <spanclass="param">network</span> ] ) <spanclass="arrow">⇒</span><spanclass="returns"><ahref="/api/providers/provider/">Provider</a></span></div><divclass="body"><p>Returns a new Provider, backed by multiple services, connected to <i>network</i>. Is no <i>network</i> is provided, <b>homestead</b> (i.e. mainnet) is used.</p></div></div>
