SIZE_CONSTANTS

const SIZE_CONSTANTS: object

Defined in: packages/synapse-core/src/utils/constants.ts:34

Data size constants

Type Declaration

DEFAULT_UPLOAD_BATCH_SIZE

readonly DEFAULT_UPLOAD_BATCH_SIZE: 32 = 32

Default number of uploads to batch together in a single addPieces transaction This balances gas efficiency with reasonable transaction sizes

GiB

readonly GiB: bigint

Bytes in 1 GiB

KiB

readonly KiB: 1024n = 1024n

Bytes in 1 KiB

MAX_UPLOAD_SIZE

readonly MAX_UPLOAD_SIZE: 1065353216 = 1_065_353_216

Maximum upload size currently supported by PDP servers.

1 GiB adjusted for fr32 expansion: 1 GiB * (127/128) = 1,065,353,216 bytes

Fr32 encoding adds 2 bits of padding per 254 bits of data, resulting in 128 bytes of padded data for every 127 bytes of raw data.

Note: While it’s technically possible to upload pieces this large as Uint8Array, streaming via AsyncIterable is strongly recommended for non-trivial sizes. See SIZE_CONSTANTS.MAX_UPLOAD_SIZE in synapse-sdk for detailed guidance.

MiB

readonly MiB: bigint

Bytes in 1 MiB

MIN_UPLOAD_SIZE

readonly MIN_UPLOAD_SIZE: 127 = 127

Minimum upload size (127 bytes) PieceCIDv2 calculation requires at least 127 bytes payload

PiB

readonly PiB: bigint

Bytes in 1 PiB

TiB

readonly TiB: bigint

Bytes in 1 TiB