# obspy.clients.seedlink.easyseedlink

A simplified interface to the obspy.clients.seedlink module.

The `EasySeedLinkClient` class contained in this module provides a more pythonic interface to the `obspy.clients.seedlink` module with a focus on ease of use, while minimizing unnecessary exposure of the protocol specifics.

A client object can easily be created using the `create_client()` function, e.g. by providing a function to handle incoming data and a server URL:

    from obspy.clients.seedlink.easyseedlink import create_client

    # A function to handle incoming data
    def handle_data(trace):
        print('Received the following trace:')
        print(trace)
        print()

    # Create the client and pass the function as a callback
    client = create_client('geofon.gfz-potsdam.de', on_data=handle_data)
    client.select_stream('BW', 'MANZ', 'EHZ')
    client.run()

For advanced applications, subclassing the `EasySeedLinkClient` class allows for more flexibility. See the `EasySeedLinkClient` documentation for an example.

Note

For finer grained control of the SeedLink connection (e.g. custom processing of individual SeedLink packets), using `SeedLinkConnection` or `SLClient` directly might be the preferred option.

Limitations

As of now, single station mode is not supported. Neither are in-stream `INFO` requests.

The client is using the `SeedLinkConnection` class and hence inherits all of its limitations. For example, erroneous packets are only logged, but otherwise ignored, with no possibility of handling them explicitly. Keepalive handling is completely encapsulated inside the connection object and cannot be easily influenced. Also, a `HELLO` is always sent to the server when connecting in order to determine the SeedLink protocol version.

Public Functions

`create_client` | Quickly create an EasySeedLinkClient instance.

Classes

`EasySeedLinkClient` | An easy-to-use SeedLink client.

Exceptions

`EasySeedLinkClientException` | A base exception for all errors triggered explicitly by EasySeedLinkClient.

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)