How can I generate openapi json schema from typespec schema?

[m-salman-afzal]

I'm asking because the emit options does not seem to work for me. I'm trying:

npx tsp compile docs/main.tsp --emit="@typespec/json-schema"

and for example my main.tsp looks like:

import "@typespec/http";
import "@typespec/rest";
import "@typespec/openapi3";
import "@typespec/json-schema";

import "./Routes/auth.tsp";

using TypeSpec.Http;
using TypeSpec.Rest;
using TypeSpec.JsonSchema;

@service({
    title: "FCH API",
})
@server(
    "https://{url}/api/{apiVersion}",
    "Single server endpoint",
    {
        url: string = "127.0.0.1:8085",
        apiVersion: string = "v1",
    }
)
namespace FCH;

[timotheeguerin]

Do you want to emit openapi3 or json schema? those are 2 different document(s) and emitters in TypeSpec

For openapi3 you should use the @typespec/openapi3 emitter https://typespec.io/docs/libraries/openapi3/reference/emitter