Method getEdgeFunctionInfo

packages/next/src/server/next-server.ts:1485–1545

* Get information for the edge function located in the provided page * folder. If the edge function info can't be found it will throw * an error.

(params: {
    page: string
    /** Whether we should look for a middleware or not */
    middleware: boolean
  })

   * an error.
   */
  protected getEdgeFunctionInfo(params: {
    page: string
    /** Whether we should look for a middleware or not */
    middleware: boolean
  }): {
    name: string
    paths: string[]
    wasm: { filePath: string; name: string }[]
    env: { [key: string]: string }
    assets?: { filePath: string; name: string }[]
  } | null {
    const manifest = this.getMiddlewareManifest()
    if (!manifest) {
      return null
    }

    let foundPage: string

    try {
      foundPage = denormalizePagePath(normalizePagePath(params.page))
    } catch (err) {
      return null
    }

    let pageInfo = params.middleware
      ? manifest.middleware[foundPage]
      : manifest.functions[foundPage]

    if (!pageInfo) {
      if (!params.middleware) {
        throw new PageNotFoundError(foundPage)
      }
      return null
    }

    return {
      name: pageInfo.name,
      paths: pageInfo.files.map((file) =>
        join(/* turbopackIgnore: true */ this.distDir, file)
      ),
      wasm: (pageInfo.wasm ?? []).map((binding) => ({
        ...binding,
        filePath: join(
          /* turbopackIgnore: true */ this.distDir,
          binding.filePath
        ),
      })),
      assets:
        pageInfo.assets &&
        pageInfo.assets.map((binding) => {
          return {
            ...binding,
            filePath: join(
              /* turbopackIgnore: true */ this.distDir,
              binding.filePath
            ),
          }
        }),