/v1/blocks/{block_id} REST API Endpoint

Parameters

id

string

REQUIRED

The id of the block

expand

string

A comma-separated list indicating which properties of the content to expand

select

string

A comma-separated list indicating which properties of the content to return

Returns

header

object

The block header which contains the following fields:

id

string

A 32-byte unique identifier for an entity

parent_id

string

The id of the parent block that preceded the current block

height

string

The height of the current block

timestamp

string

The timestamp of when the current block was created

parent_voter_signature

string

The signature of the validator node that voted for the parent block

payload

object

The block payload which contains the following fields:

collection_guarantees

array

It provides additional security and reliability guarantees for collections of transactions or blocks on the Flow blockchain

collection_id

string

A 32-byte unique id of a collection

signer_indices

array

It represents the indices of the accounts that signed the collection

signature

string

A cryptographic signature of the collection guarantees

block_seals

array

It refers to the cryptographic signatures and approvals that validate and secure a specific block of transactions

block_id

string

The unique id of the block that the block seals are associated with

result_id

string

The unique id of the result

final_state

string

The root hash of the state tree

aggregated_approval_signatures

array

It refers to the combined cryptographic signatures of multiple nodes that approved a specific block of transactions

verifier_signatures

array

The cryptographic signatures of the nodes that acted as verifiers for the block

signer_ids

array

The list of signer ids

execution_result

object

The execution result object which contains the following fields:

id

string

The unique id of the execution result

block_id

string

The unique id of the block that contains the transactions that generated the execution result

events

array

An array of events that were emitted during the execution of the transactions. It contains the following fields:

type

string

The type of the event, which is typically a string that identifies the purpose or function of the event

transaction_id

string

The unique id of the transaction that emitted the event

transaction_index

string

The index of the transaction that emitted the event

event_index

string

The index of the event within the transaction

payload

string

The data payload associated with the event, which can be used to provide additional information about the event

chunks

array

An array of data chunks generated during the execution of the transaction. It contains the following fields:

collection_index

string

The index of the collection that the chunk belongs to

start_state

string

The state of the blockchain before the execution of the chunk

event_collection

string

The collection of events that were emitted during the execution of the chunk

block_id

string

The ID of the block that the chunk belongs to

total_computation_used

string

The total amount of computation resources that were consumed during the execution of the chunk

number_of_transactions

string

The number of transactions that were included in the chunk

index

string

The index of the chunk within the block

end_state

string

The state of the blockchain after the execution of the chunk

previous_result_id

string

The unique id of the previous execution result

_links

object

An object that contains links to related resources or endpoints

_self

string

It is a link that refers to the current resource itself. In this case, it is the block resource requested

_expandable

object

The items inside the _expandable object can be expanded by passing as the query parameter in the request. For this method, the parameters payload and execution_result have been added to the request

_links

object

An object that contains links to related resources or endpoints

_self

string

It is a link that refers to the current resource itself. In this case, it is the block resource requested

Request

1
curl -X 'GET' 'https://docs-demo.flow-mainnet.quiknode.pro/v1/blocks/331bea8eb3d9f8913c615f64750bc26bf2b5cb16eb4639e4495c0cebeae30173?expand=payload,execution_result' \
2
    -H 'Content-Type: application/json'

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