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It is important that the client invoke setDistrictAccess code to establish the district database to which the session is bound. This must be done exactly once after login and prior to any other USPS operation.{{
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A client must not invoke _setDistrictAccess _more than once for a session. A fault will be returned if such an attempt is made and the session will be left in an indeterminate state. Client applications that need to access more than one district, must establish at least one session for each district. |
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Session Timeout
Sessions consume resources on both the SOAP server and the back-end USPS server. Therefore, inactivity timeouts apply to the SOAP sessions. The timeout interval is configurable by each ITC and defaults to approximately 45 minutes. If there is no activity for a session during the timeout interval, the session will be deleted from the SOAP service. Any subsequent invocations using an expired sessionId will result in a fault being returned. Client applications that attempt to maintain long running connections, must be prepared to handle such faults.
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