authz

A convenience method that produces the needed authorization details for the current user to submit transactions to Flow. It defines a signing function that connects to a user's wallet provider to produce signatures to submit transactions.

You can replace this function with your own authorization function if needed.

Import

You can import the entire package and access the function:

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import * as fcl from "@onflow/fcl"

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fcl.authz()

Or import directly the specific function:

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import { authz } from "@onflow/fcl"

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authz()

Usage

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import * as fcl from '@onflow/fcl';

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// login somewhere before

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fcl.authenticate();

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// once logged in authz will produce values

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console.log(fcl.authz);

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// prints {addr, signingFunction, keyId, sequenceNum} from the current authenticated user.

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const txId = await fcl.mutate({

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cadence: `

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import Profile from 0xba1132bc08f82fe2

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transaction(name: String) {

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prepare(account: auth(BorrowValue) &Account) {

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account.storage.borrow<&{Profile.Owner}>(from: Profile.privatePath)!.setName(name)

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}

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}

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`,

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args: (arg, t) => [arg('myName', t.String)],

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proposer: fcl.authz, // optional - default is fcl.authz

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payer: fcl.authz, // optional - default is fcl.authz

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authorizations: [fcl.authz], // optional - default is [fcl.authz]

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});

Returns

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(account: Account) => Promise<Account>

An object containing the necessary details from the current user to authorize a transaction in any role.

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