import 'json-schema-to-typescript' only in dev mode

src/next-types.d.ts

@@ -8,6 +8,7 @@ declare module 'next/config' {
 
   export interface PublicRuntimeConfig {
     TENANT_TYPE?: string
+    NODE_ENV?: string
   }
 
   const getConfig: () => {

src/validation/index.ts

@@ -2,20 +2,20 @@ import { Validator } from 'jsonschema'
 import { getDefaults, isObject, merge } from './defaults'
 import { TransformedValidatorResult, ValidatorOptions } from './types'
 import { transformInstance } from './transform'
-import { compile, JSONSchema } from 'json-schema-to-typescript'
+import type { JSONSchema } from 'json-schema-to-typescript'
 import * as fs from 'fs/promises'
 import { join } from 'path'
 import { NetworkError } from '../utils/errors'
 import getConfig from 'next/config'
 
 const {
-  publicRuntimeConfig: { TENANT_TYPE }
+  publicRuntimeConfig: { TENANT_TYPE, NODE_ENV }
 } = getConfig()
 
 const validatorStorage = new Validator()
 
 export async function addSchema(schemas: JSONSchema[]) {
-  if (TENANT_TYPE === 'local') {
+  if (TENANT_TYPE === 'local' && NODE_ENV === 'development') {
     const fileName = join('./src/types/ApiSchemas.ts')
     const fileNameFrontend = join('./src/types/ApiSchemasFrontend.ts')
     const style = await fs.readFile('./.prettierrc.json', 'utf8').then(JSON.parse)
@@ -25,6 +25,7 @@ export async function addSchema(schemas: JSONSchema[]) {
       if (!schema.id) throw new SyntaxError('Id of schema has to be defined!')
       validatorStorage.addSchema(schema)
       // compile schema to interface
+      const { compile } = await import('json-schema-to-typescript')
       let entity = await compile(schema, schema.id, {
         style,
         bannerComment: data === '' ? undefined : '\n\n\n',

src/validation/schemas.ts

@@ -70,6 +70,4 @@ export function addSchemas() {
   ])
 }
 
-export const waitForInitSchemas = new Resolvable(() => {
-  return addSchemas()
-})
+export const waitForInitSchemas = new Resolvable(addSchemas)