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Prior to calling methods on some objects represented in the SoftLayer API, a unique identifier must be used during instantiation of the service. SoftLayer provides a way to instantiate your service objects by passing the service’s initialization parameter in the header of your API calls. Once this action is complete, all methods following this header will be directed to the method containing the initialization parameter.
Nearly all data represented in the SoftLayer API is identified by a unique integer value. For instance, your SoftLayer customer account number is one of these unique identifiers and, consequently, is the value of the initialization parameter in your calls to the SoftLayer_Account service.
An initialization parameter is an object of the type
Languages that support SOAP usually have built-in mechanisms to add headers to a SOAP call (the SoapHeader PHP class, for instance). If building manual SOAP calls, then format your request XML akin to the following (assuming you’re working with the SoftLayer_Network_Backbone service):
<xml> <SoftLayer_Network_BackboneInitParameters xsi:type="v3:SoftLayer_Network_BackboneInitParameters"> <id xsi:type="xsd:int">115</id> </SoftLayer_Network_BackboneInitParameters> </xml>
Since XML-RPC treats data as array keys and values, its initialization parameter structure is quite different:
<xml> <struct> <member> <name>SoftLayer_Network_BackboneInitParameters</name> <value> <struct> <member> <name>id</name> <value> <int>115</int> </value> </member> </struct> </value> </member> </struct> </xml>
Most programming and scripting languages with SOAP and XML-RPC support have built-in methods to create request headers, but if formatting a call manually then place XML like the values above into the headers of your requests.
Some methods do not require initialization parameters. These kinds of methods usually create objects or retrieve groups of objects. For instance, the SoftLayer_Ticket::addUpdate method requires an initialization parameter set since it relates to updating a specific ticket, but the SoftLayer_Ticket::createAdministrativeTicket method does not since there is no existing ticket to reference. If a method does not require an initialization parameter, its service’s initialization parameter data type is absent from its manual page.