getCollection

A builder function that returns a collection containing a list of transaction IDs by its collection ID.

A collection is a batch of transactions that have been included in a block. Each collection has a unique ID which is the SHA3-256 hash of the collection payload. Collections are used to group related transactions together for more efficient processing by the network.

The collection ID provided must be from the current spork. Collections from past sporks are currently unavailable.

Import

You can import the entire package and access the function:

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

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sdk.getCollection(id);

Or import directly the specific function:

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import { getCollection } from '@onflow/sdk';

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getCollection(id);

Usage

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

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// Get a collection and see what transactions it contains

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const collection = await fcl

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.send([

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fcl.getCollection(

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'cccdb0c67d015dc7f6444e8f62a3244ed650215ed66b90603006c70c5ef1f6e5',

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),

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])

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.then(fcl.decode);

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console.log('Collection ID:', collection.id);

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console.log('Transaction IDs:', collection.transactionIds);

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console.log('Total transactions:', collection.transactionIds.length);

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// Process each transaction in the collection

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for (const txId of collection.transactionIds) {

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const transaction = await fcl

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.send([fcl.getTransaction(txId)])

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.then(fcl.decode);

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console.log('Transaction:', transaction);

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}

Parameters

id (optional)

• Type: string

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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