Topic: 2. Proxies

soapProxy

A SOAP proxy automatically configures itself using a WSDL description. It reads the WSDL to extract: - The for target, port, and path. The proxy sits in front of a SOAP Web Service, masking it while providing the same interface to clients as the target server. The proxy serves the WSDL to gateway clients, with the WSDL address pointing to the proxy instead of the backend. This ensures that client requests using the WSDL are routed through the API Gateway. Additionally, the SOAP proxy: - Can validate requests against the WSDL - Provides a simple service explorer

Explanation:

If the WSDL specified by the wsdl attribute is unavailable at startup, the becomes inactive. Reinitialization can be triggered via the admin console or automatically by the {@link Router}, which periodically attempts to restore the proxy.

Can be used in:

router and bean

Syntax

    <soapProxy name="string"
      port="integer"
      wsdl="string"
      host="[string,*]"
      ip="[ip]">
	<path />?
	<ssl />?
	<request>
		[interceptors]*
	</request>
	[interceptors]*
	<response>
		[interceptors]*
	</response>
	<localhost />?
</serviceProxy>

Sample

<soapProxy wsdl="http://www.thomas-bayer.com/axis2/services/BLZService?wsdl">
  <soapStackTraceFilter />
  <validator />
</soapProxy>

There is also a step-by-step introduction on how to use the <soapProxy> element.

Attributes

Name	Required	Default	Description	Example
blockRequest	false	false	legacy attribute for usage by Membrane Monitor	-
wsdl	true	-	The WSDL of the SOAP service.	http://predic8.de/my.wsdl or file:my.wsdl
port	false	80	The port Membrane listens on for incoming connections.	8080
ip	false	not set	If present, binds the port only on the specified IP. Useful for hosts with multiple IP addresses.	127.0.0.1
name	false	By default, a name will be automatically generated from the target host, port, etc.	The name as shown in the Admin Console.	-
blockResponse	false	false	legacy attribute for usage by Membrane Monitor	-
host	false	not set	A space separated list of hostnames. If set, Membrane will only consider this rule, if the "Host" header of incoming HTTP requests matches one of the hostnames. The asterisk '*' can be used for basic globbing (to match any number, including zero, characters).	predic8.de *.predic8.de
wsdlHttpClientConfig	false	-	-	-
portName	false	-	-	-
serviceName	false	-	-	-

Child Elements

Elements	Description	Cardinality
path	If set, Membrane will only consider this rule, if the path of incoming HTTP requests matches. {@link Path} supports starts-with and regex matching. If used in a {@link SOAPProxy}, this causes path rewriting of SOAP requests and in the WSDL to automatically be configured.	0..1
ssl	Configures the usage of inbound SSL (HTTPS).	0..1
target		0..1

Other optional Child Elements

jwtSign, oauth2PermissionChecker, accessControl, index, openTelemetry, groovy, webServiceExplorer, acmeHttpChallenge, counter, requireAuth, beautifier, apiKey, cache, logContext, soap2Rest, APIsJSON, sampleSoapService, dispatching, tokenValidator, transform, rateLimiter, tcp, analyser, authHead2Body, wsdlRewriter, call, formValidation, stompClient, javascript, jsonProtection, clamav, kubernetesValidation, oauth2authserver, validator, shadowing, destination, return, graphQLProtection, rewriter, flowInitiator, interceptor, headerFilter, xml2Json, apiDocs, rest2Soap, webServer, groovyTemplate, greaser, regExReplacer, reverseProxying, log, prometheus, for, if, replace, xmlProtection, wadlRewriter, soapOperationExtractor, balancer, throttle, userFeature, testService, exchangeStore, httpClient, json2Xml, jwtAuth, template, xmlContentFilter, adminConsole, webSocket, limit, methodOverride, ruleMatching, oauth2Resource2, statisticsCSV, static, accountRegistration, ntlm, statisticsProvider, clusterNotification, urlNormalizer, xenAuthentication, shutdown, setHeader, choose, accessLog, setProperty, http2xml, soapStackTraceFilter, paddingHeader, login, wsdlPublisher, statisticsJDBC, basicAuthentication