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atBlockId

A builder function that returns a partial interaction to a block at a specific block ID.

Use with other interactions like 'fcl.getBlock()' to get a full interaction at the specified block ID.

Block ID is SHA3-256 hash of the entire block payload. This hash is stored as an ID field on any block response object (ie. response from 'GetLatestBlock').

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.atBlockId(id)

Or import directly the specific function:


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import { atBlockId } from "@onflow/sdk"
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atBlockId(id)

Usage​


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import * as fcl from "@onflow/fcl";
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// Get block by ID
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await fcl.send([fcl.getBlock(), fcl.atBlockId("23232323232")]).then(fcl.decode);
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// Get account at specific block ID
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await fcl.send([
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fcl.getAccount("0x1d007d755706c469"),
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fcl.atBlockId("9dda5f281897389b99f103a1c6b180eec9dac870de846449a302103ce38453f3")
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]).then(fcl.decode);
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// Execute script at specific block
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await fcl.send([
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fcl.script`
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access(all) fun main(): UFix64 {
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return getCurrentBlock().timestamp
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}
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`,
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fcl.atBlockId("a1b2c3d4e5f6")
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]).then(fcl.decode);

Parameters​

id​

  • Type: string
  • Description: The ID of the block to execute the interaction at

Returns​

InteractionBuilderFn


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

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