arg

A utility builder to be used with fcl.args[...] to create FCL supported arguments for interactions.

Arguments are used to pass data to Cadence scripts and transactions. The arguments must match the number and order declared in the Cadence script. This function creates an ArgumentObject that holds the value and type passed in.

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.arg(value, xform)

Or import directly the specific function:

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import { arg } from "@onflow/fcl"

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arg(value, xform)

Usage

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import * as fcl from "@onflow/fcl"

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const result = await fcl.query({

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cadence: `

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access(all) fun main(a: Int, b: Int, addr: Address): Int {

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log(addr)

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return a + b

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}

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`,

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args: (arg, t) => [

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arg(7, t.Int), // a: Int

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arg(6, t.Int), // b: Int

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arg("0xba1132bc08f82fe2", t.Address), // addr: Address

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],

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});

Parameters

value

• Type:

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TypeDescriptorInput<T>

• Description: Any value that you are looking to pass to other builders

xform

• Type: T
• Description: A type supported by Flow (FType descriptor)

Returns

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CadenceArgument<T>

An ArgumentObject that holds the value and type passed in

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