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authorizations

A utility builder to set the authorizations on a transaction.

Authorizations define the accounts that are responsible for paying the transaction fees and providing signatures for the transaction. You can have multiple authorizers in a single transaction (multi-signature transactions).

Read more about transaction roles and signing transactions.

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.authorizations(ax)

Or import directly the specific function:


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import { authorizations } from "@onflow/fcl"
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authorizations(ax)

Usage​


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import * as fcl from "@onflow/fcl";
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// Single authorizer (most common case)
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await fcl.mutate({
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cadence: `
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transaction {
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prepare(acct: AuthAccount) {
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log("Hello from: ".concat(acct.address.toString()))
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}
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}
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`,
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authorizations: [fcl.authz] // Current user authorization
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});
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// Multiple authorizers - both accounts must approve
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await fcl.mutate({
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cadence: `
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transaction {
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prepare(acct1: AuthAccount, acct2: AuthAccount) {
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log("Transaction signed by both accounts")
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}
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}
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`,
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authorizations: [userOneAuthz, userTwoAuthz]
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});
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// Using builder pattern
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await fcl.send([
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fcl.transaction`
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transaction {
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prepare(acct: AuthAccount) {
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acct.save("Hello, World!", to: /storage/greeting)
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}
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}
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`,
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fcl.authorizations([fcl.authz]),
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fcl.proposer(fcl.authz),
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fcl.payer(fcl.authz),
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fcl.limit(100)
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]);

Parameters​

ax (optional)​

  • Type:

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export type AccountAuthorization =
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| (AuthorizationFn & Partial<InteractionAccount>)
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| Partial<InteractionAccount>

  • Description: An array of authorization functions that produce account authorization details

Returns​


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export type InteractionBuilderFn = (
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ix: Interaction
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) => Interaction | Promise<Interaction>

A function that processes an interaction object

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