[jira] [Created] (FLINK-21420) Add path templating to DataStream API

[Shang Yuanchun (Jira)]

Miguel Araujo created FLINK-21420:
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             Summary: Add path templating to DataStream API
                 Key: FLINK-21420
                 URL: https://issues.apache.org/jira/browse/FLINK-21420
             Project: Flink
          Issue Type: Improvement
          Components: Stateful Functions
            Reporter: Miguel Araujo


Path Template was introduced in FLINK-20264 with a new module YAML specification being added in FLINK-20334.

However, that possibility was not added to the DataStream API.

The main problem is that RequestReplyFunctionBuilder can only receive FunctionTypes which it then turns into FunctionTypeTarget's for the HttpFunctionEndpointSpec builder:
{code:java}
private RequestReplyFunctionBuilder(FunctionType functionType, URI endpoint) {
  this.builder =
      HttpFunctionEndpointSpec.builder(
          Target.functionType(functionType), new UrlPathTemplate(endpoint.toASCIIString()));
}
{code}
It should also be possible for the RequestReplyFunctionBuilder to receive a namespace instead of a function type and to use `Target.namespace(namespace)` to initialize the HttpFunctionEndpointSpec Builder instead.

 



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