Outgoing connections - SOAP


Used to create, update, delete and browse through outgoing SOAP connections.

Unlike plain HTTP connections, SOAP ones always except that a service intends to send XML.


Create and Edit

Header Notes
Name Connection name

Whether the connection can be used by services or not.

If a connection is not active a service will encounter a zato.common.Inactive exception when attempting to use it.

Note that an inactive connection still can be pinged.

Host HTTP server’s host, may include a port
URL path If serialization type is string, path a service to be invoked is mounted on. If Suds, path a WSDL is under.
Data format (Optional) Allows for automatic serialization of outgoing requests to XML if string-based serialization is used.
SOAP action SOAP action a service to be invoked uses. Ignored if serialization type is Suds.
SOAP version SOAP version a service to be invoked uses, can be either 1.1 or 1.2. Ignored if serialization type is Suds.
Ping method HTTP method to use for pinging the connection (defaults to HEAD).
Pool size How big an underlying connection pool can be, any requests above it will be discarded and a warning will be logged. This setting is per each server worker and connections are created on demand, when they’re actually needed.
Timeout Timeout, in seconds, after exceeding of which an exception will be raised without waiting for the external resource to reply - use zato.common.TimeoutException to catch the exception if it’s needed. The value can be expressed in a fraction of a second, e.g. 0.5 to indicate half a second.
Serialization type Whether requests will be prepared as strings by services or if Suds is used which lets one import WSDLs and serialize Python objects to SOAP automatically.

Name of a security definition - HTTP Basic Auth or SSL/TLS client cert - to use for accessing the resource.

If serialization type is Suds, NTLM can also be used.

Pick ‘No security’ explicitly to indicate that no such definition should be used.

TLS CA certs (Required if host starts with https://) Which CA certs package to use for validating the certificate of the external server. Use ‘Skip validation’ to explicitly configure the connection not to validate the server certificate at all. Ignored if serialization type is Suds.



A connection can be pinged - this sends an HTTP request (HEAD by default) from one of a cluster’s servers to a location specified by the connection’s definition. This can be used to check whether a given resource is reachable by Zato servers.

The feature is available even if a connection is inactive.

Reload WSDL

If an outgoing connection’s serialization type is Suds, which implies automatic serialization of requests to SOAP out of WSDLs, clicking on Reload WSDL refreshes the internal cache - otherwise any updates to the WSDL are not visible to any connections using it.



Version Notes

Added new fields:

  • Data format
  • Pool size
  • Timeout
  • Serialization type
  • TLS CA certs
1.0 Added initially