Class NodeBlobCodec

Node.js Buffer-based BLOB codec.

Encodes number[] vectors as Float32 little-endian binary BLOBs using Buffer.writeFloatLE / Buffer.readFloatLE, and computes SHA-256 hashes using the node:crypto module.

Implements

IBlobCodec

Index

Constructors

Methods

encode decode sha256

Constructors

constructor

new NodeBlobCodec(): NodeBlobCodec
Returns NodeBlobCodec

Methods

encode

encode(vec): Uint8Array
Encode a number[] vector to a binary BLOB value (Float32 little-endian).
Parameters
- vec: number[]
Returns Uint8Array
Implementation of IBlobCodec.encode
- Defined in src/codecs/NodeBlobCodec.ts:12

decode

decode(blob): number[]
Decode a BLOB column value back to number[].
Parameters
- blob: Uint8Array | ArrayBufferLike
Returns number[]
Implementation of IBlobCodec.decode
- Defined in src/codecs/NodeBlobCodec.ts:20

sha256

sha256(input): Promise<string>
SHA-256 hex digest. Async to support crypto.subtle in browsers.
Parameters
- input: string
Returns Promise<string>
Implementation of IBlobCodec.sha256
- Defined in src/codecs/NodeBlobCodec.ts:31