datalink-client

DataLink protocol client for reading and writing data using the DataLink protocol. DataLink is a simple, packet-based streaming protocol used in seismological data systems, primarily with EarthScope's ringserver software.

Installation

pip install datalink-client

Usage

Python API

from datalink_client import DataLink

with DataLink("localhost", 16000) as dl:
    dl.match("FDSN:IU_COLA_.*")
    dl.position_set("LATEST", 0)
    dl.stream()
    for packet in dl.collect():
        print(packet.streamid, len(packet.data))

Command-line client

An interactive client is available after install:

datalink-client [host:port]

Default is localhost:16000. Use datalink-client --help for options (timeout, TLS, auth).

Async usage

This package provides a synchronous client. For async/await support (e.g. with asyncio), use the simpledali package.