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Manages a pool of suds SOAP clients within the context of a Zope application

Project description

Introduction

z3c.suds manages a connection pool of suds client objects in the context of a ZODB-based application. (suds is a lightweight client library for consuming SOAP web services in Python.) Using it avoids the need for instantiating a new client for the same webservice in multiple requests (which may be expensive due to parsing WSDL, etc.)

Usage

A client may be obtained via the get_suds_client method:

client = get_suds_client(wsdl_uri, context=None)

This returns an existing suds client if one is found in the cache for the given WSDL; otherwise it returns a new client object and stores it in the cache.

wsdl_path is the URI of the WSDL (web service definition language) description of the web service. (Use a file:// URI for a locally stored WSDL.)

context is a persistent object (in the ZODB sense). If not provided, the getSite method of zope.site.hooks will be used to obtain an object (which is probably only sensible within the context of a Zopish framework). If the context object is associated with a ZODB connection, the client will be cached in the connection’s foreign_connections dictionary. If the context object is not yet associated with a ZODB connection, the client will be cached in a volatile attribute instead. This approach to piggybacking a pool of connections on the ZODB connection pool is based on alm.solrindex, and further documented there.

Changelog

1.0 (2010-09-17)

  • Initial release

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This version

1.0

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