Cannot generate multiple documents.

[aurelienbobenrieth]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the issue has not already been raised

Issue

I spent hours trying to figure out myself, but I cannot seem to manage to generate multiple documents.

With this:

const generateOpenApiDocumentation =
  (server: Server) => async (version: string) => {
    const { name, baseUrl } = AppConfig;
    await server.register(FastifySwagger.fastifySwagger, {
      openapi: {
        info: {
          title: `${name} API`,
          version,
        },
        servers: [/* ... */],
      },
      prefix: `/api/${version}`,
    });
  };
  
// ...

for (const version of PUBLISHED_VERSIONS) {
  await generateOpenApiDocumentation(server)(version);
}

I get : FST_ERR_DEC_ALREADY_PRESENT: The decorator "swagger" has already been added.

If I use encapsulation as described here:
#213

Then both of my generated documents have no routes...

Isn't it possible to have the auto mode with encapsulation ?

[mcollina]

You can.

async function firstDocument (app) {
  app.register(import('@fastify/swagger'))

  app.route(...) // all routes that are to go in the first document
}

async function secondDocument (app) {
  app.register(import('@fastify/swagger'))

  app.route(...) // all routes that are to go in the second document
}