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https://issues.apache.org/jira/browse/CAMEL-21057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17873098#comment-17873098
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Zheng Feng commented on CAMEL-21057:
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Yeah, it does not handle the relative url correctly. Refer to the spec
https://swagger.io/docs/specification/api-host-and-base-path/
{noformat}
The URLs in the servers array can be relative, such as /v2. In this case, the
URL is resolved against the server that hosts the given OpenAPI
definition.{noformat}
> REST OpenApi fails to resolve host from the URL
> -----------------------------------------------
>
> Key: CAMEL-21057
> URL: https://issues.apache.org/jira/browse/CAMEL-21057
> Project: Camel
> Issue Type: Bug
> Components: camel-rest-openapi
> Affects Versions: 3.18.8, 4.7.0
> Reporter: Lukas Lowinger
> Assignee: Zheng Feng
> Priority: Major
> Attachments: rest-openapi-camel.zip
>
>
> Given simple route
> {code}
> private final String openApiJsonUrl =
> "http://localhost:8080/api/v3/openapi.json";;
> String a = "{\n" + " \"id\": 13,\n" + " \"name\": \"kooo\",\n" + "
> \"category\": {\n" + " \"id\": 1,\n" + " \"name\": \"Dogs\"\n" + "
> }\n" + "}";
> @Override
> public void configure() throws Exception {
>
> from("timer:test?repeatCount=1").setBody(simple(a)).setHeader(Exchange.CONTENT_TYPE,
> simple("application/json")).to("rest-openapi:#addPet?specificationUri=RAW("
> + openApiJsonUrl + ")").to("direct:readPet");
> from("direct:readPet").setHeader("petId",
> simple("13")).to("rest-openapi:#getPetById?specificationUri=RAW(" +
> openApiJsonUrl + ")");
> }
> {code}
> I get
> {code}
> Caused by: java.net.MalformedURLException: no protocol: /api/v3
> at java.net.URL.<init> (URL.java:674)
> at java.net.URL.<init> (URL.java:569)
> at java.net.URL.<init> (URL.java:516)
> at
> org.apache.camel.component.rest.openapi.RestOpenApiEndpoint.determineHost
> (RestOpenApiEndpoint.java:590)
> at
> org.apache.camel.component.rest.openapi.RestOpenApiEndpoint.determineEndpointParameters
> (RestOpenApiEndpoint.java:459)
> {code}
> Reproducer:
> # Unzip [^rest-openapi-camel.zip]
> # Run `docker run -p 8080:8080 swaggerapi/petstore3`
> # mvn camel:run
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