My "azure functions" is failing to detect a v4 Azure function app without me having to include a function.json file. Is this correct behaviour? I expect that I dont have to include a function.json file since the bindings are in my index file

Question

My "azure functions" is failing to detect a v4 Azure function app without me having to include a function.json file. Is this correct behaviour? I expect that I dont have to include a function.json file since the bindings are now set in my index file as follows:

app.http("dueDiligenceHttpTrigger", {
  methods: ["GET", "POST"],
  authLevel: "anonymous",
  handler: dueDiligenceHttpTrigger,
});