Unable to Invoke Lite-Embedded Request-Response Flow via POST in Nussknacker

[joice1910]

Hi Team,

I’ve created a scenario in Nussknacker with the following setup:

• Processing Mode: Request-Response
• Engine: Lite-Embedded
• Slug Name: TestRequestResponseFlow
• Flow Name: Test-Request-Response-Flow

Input Schema: { "type": "object", "properties": { "incoming": { "type": "object", "properties": { "first": { "type": "string" }, "last": { "type": "string" } }, "required": ["first", "last"] } } }

Output Schema: { "type": "object", "properties": { "outgoing": { "type": "object", "properties": { "first": { "type": "string" }, "last": { "type": "string" } }, "required": ["first", "last"] } } }

I’ve added a source and connected it to a sink. After saving and deploying the flow, the UI shows the scenario is running successfully.

However, I’m unclear about the correct URL to invoke the flow.

I tried the following request: curl -X POST http://:8080/TestRequestResponseFlow -H "Content-Type: application/json" -u admin:admin -d '{ "incoming": { "first": "John", "last": "Doe" } }'

But I received the following response: HTTP method not allowed, supported methods: GET

Can someone please help me understand:

What is the correct endpoint to hit for a Lite-Embedded Request-Response flow? Is there a specific method or URL structure I should follow? Thanks in advance!

[joice1910]

Hi team,

Could someone please assist me with this?

Thanks in Advance

[arkadius]

Hi. To communicate with a scenario, you should access the dedicated 8181 port. So, in your case, the cURL invocation will look like:

curl -X POST http://host:8181/scenario/TestRequestResponseFlow ...

You can also access swagger-ui at http://host:8181/scenario/TestRequestResponseFlow/