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Web Utilities
ethers . utils . fetchJson ( urlOrConnectionInfo [ , json [ , processFunc ] ] ) => Promise< any >
Fetch and parse the JSON content from urlOrConnectionInfo, with the optiona body json and optionally processing the result with processFun before returning it.
ethers . utils . poll ( pollFunc [ , options ] ) => Promise< any >
Repeatedly call pollFunc using the Poll Options until it returns a value other than undefined.
Connection Info
connection . url => string
The URL to connect to.
connection . user => string
The username to use for Basic Authentication. The default is null (i.e. do not use basic authentication)
connection . password => string
The password to use for Basic Authentication. The default is null (i.e. do not use basic authentication)
connection . allowInsecureAuthentication => boolean
Allow Basic Authentication over non-secure HTTP. The default is false.
connection . timeout => number
How long to wait before rejecting with a timeout error.
connection . headers => {[key:string]:string}
Additional headers to include in the connection.
Poll Options
options . timeout => number
The amount of time allowed to ellapse before triggering a timeout error.
options . floor => number
The minimum time limit to allow for Exponential Backoff.
The default is 0s.
options . ceiling => number
The maximum time limit to allow for Exponential Backoff.
The default is 10s.
options . interval => number
The interval used during Exponential Backoff calculation.
The default is 250ms.
options . retryLimit => number
The number of times to retry in the event of an error or undefined is returned.
options . onceBlock => Provider
If this is specified, the polling will wait on new blocks from provider before attempting the pollFunc again.
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