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marklife / web/src / MarklifeBleTransport

Class: MarklifeBleTransport ​

Implements ​

Properties ​

profileId ​

readonly profileId: MarklifeBleProfileId

Which GATT profile resolved — surfaced for triage reports.

Accessors ​

connected ​

Get Signature ​

get connected(): boolean

Whether the transport is currently connected.

Returns ​

boolean

Implementation of ​

Transport.connected

Methods ​

close() ​

close(): Promise<void>

Close the connection.

Always safe to call multiple times. Always await the result.

Returns ​

Promise<void>

Implementation of ​

Transport.close

read() ​

read(length, timeout?): Promise<Uint8Array>

Read bytes from the printer.

Buffers until length bytes are available or the timeout fires.

BLE implementations: there is no "read N bytes" primitive in BLE. Implementations must buffer incoming GATT notifications internally and satisfy read() calls from that buffer. Document this in your transport class — every BLE implementation must handle buffering consistently so drivers get the same pull-based API on every transport.

Parameters ​

length ​

number

timeout? ​

number

Returns ​

Promise<Uint8Array>

Throws ​

TransportTimeoutError on timeout.

Throws ​

TransportClosedError if the transport is closed mid-read.

Implementation of ​

Transport.read

write() ​

write(data): Promise<void>

Send bytes to the printer.

Parameters ​

data ​

Uint8Array

Returns ​

Promise<void>

Implementation of ​

Transport.write

open() ​

static open(device, resolved, maxPacket?): Promise<MarklifeBleTransport>

Wrap a probed profile on an already-connected device, starting notifications on RX (and on the credit channel when present).

Parameters ​

device ​

BluetoothDevice

resolved ​

ResolvedProfile

maxPacket? ​

number = DEFAULT_MAX_PACKET

— the registry's bluetooth-gatt.mtu, the firmware's packet ceiling.

Returns ​

Promise<MarklifeBleTransport>