Regression bug validationMetadatasToSchemas v5.0.0

[hxtree]

There appears to be a regression bug. The instructions provided in the readme work on 3.1.1 but do not work on version 5.0.0

// eslint-disable-next-line max-classes-per-file
import { Type } from 'class-transformer';
import { IsString, ValidateNested } from 'class-validator';
import { validationMetadatasToSchemas } from 'class-validator-jsonschema';

const { defaultMetadataStorage } = require('class-transformer/cjs/storage');

class BlogPost {
  @IsString()
  public words: string;
}

class User {
  @ValidateNested({ each: true })
  @Type(() => BlogPost)
  public blogPosts: BlogPost[];
}

const schemas = validationMetadatasToSchemas({
  classTransformerMetadataStorage: defaultMetadataStorage,
});

    TypeError: Cannot read properties of undefined (reading 'map')

      17 | }
      18 |
    > 19 | const schemas = validationMetadatasToSchemas({
         |                                             ^
      20 |   classTransformerMetadataStorage: defaultMetadataStorage,
      21 | });
      22 |

      at populateMetadatasWithConstraints (../../common/temp/node_modules/.pnpm/[email protected]_e6kgdsnyya5caxg3ysdyxrqm7a/node_modules/class-validator-jsonschema/src/index.ts:146:20)
      at getMetadatasFromStorage (../../common/temp/node_modules/.pnpm/[email protected]_e6kgdsnyya5caxg3ysdyxrqm7a/node_modules/class-validator-jsonschema/src/index.ts:137:23)
      at validationMetadatasToSchemas (../../common/temp/node_modules/.pnpm/[email protected]_e6kgdsnyya5caxg3ysdyxrqm7a/node_modules/class-validator-jsonschema/src/index.ts:29:21)
      at Object.<anonymous> (src/__tests__/te.test.ts:19:45)     

When using version 5.0.0 the only way to call validationMetadatasToSchemas appears to be without any "()" or "({}".

[mcankudis]

Got a similar error on version 3.1.1 after upgrading the class-validator from 0.13.2 to 0.14. Upgraded class-validator-jsonschema to 5.0.0 and things started working again. If you haven't done so yet, try upgrading the class-validator, maybe that helps.

The error for reference:

TypeError: metadatas.map is not a function
    at populateMetadatasWithConstraints (<my_path>/node_modules/class-validator-jsonschema/src/index.ts:141:20)
    at getMetadatasFromStorage (<my_path>/node_modules/class-validator-jsonschema/src/index.ts:132:10)
    at validationMetadatasToSchemas (<my_path>/node_modules/class-validator-jsonschema/src/index.ts:26:21)

[Luccazx12]

same here (with class-validator 0.14.0)

 return metadatas.map((meta) => {
app_1             |                      ^
app_1             | 
app_1             | TypeError: metadatas.map is not a function
app_1             |     at populateMetadatasWithConstraints (.../node_modules/class-validator-jsonschema/build/index.js:60:22)
app_1             |     at getMetadatasFromStorage (/(.../node_modules/class-validator-jsonschema/build/index.js:56:12)
app_1             |     at validationMetadatasToSchemas ((.../node_modules/class-validator-jsonschema/build/index.js:15:23

[Luccazx12]

I was able to solve it as follows:

import * as oa from "openapi3-ts";
import { getMetadataArgsStorage, RoutingControllersOptions } from "routing-controllers";
import { routingControllersToSpec } from "routing-controllers-openapi";
import { validationMetadatasToSchemas } from "class-validator-jsonschema";

const metadataSchemas = validationMetadatasToSchemas();

const storage = getMetadataArgsStorage();
    return routingControllersToSpec(storage, routingControllersOptions, {
      components: {
        schemas: metadataSchemas as Record<string, oa.SchemaObject | oa.ReferenceObject>
      }
});

Library versions

    "class-transformer": "^0.5.1",
    "class-validator": "^0.14.0",
    "class-validator-jsonschema": "^5.0.0",
    "routing-controllers": "^0.10.1",
    "routing-controllers-openapi": "^4.0.0",

[afraz-khan]

same here (with class-validator 0.14.0)

 return metadatas.map((meta) => {
app_1             |                      ^
app_1             | 
app_1             | TypeError: metadatas.map is not a function
app_1             |     at populateMetadatasWithConstraints (.../node_modules/class-validator-jsonschema/build/index.js:60:22)
app_1             |     at getMetadatasFromStorage (/(.../node_modules/class-validator-jsonschema/build/index.js:56:12)
app_1             |     at validationMetadatasToSchemas ((.../node_modules/class-validator-jsonschema/build/index.js:15:23

@mcankudis I upgraded class-validator-jsonschema to 5.0.0 but still finding this issue.

[gregkysenko]

Hello! Any updates for this issue? I am trying to integrate class-validator-jsonschema and It seem I can`t work with nested objects.

[Luccazx12]

Hello! Any updates for this issue? I am trying to integrate class-validator-jsonschema and It seem I can`t work with nested objects.

For object arrays too

[osnipezzini]

anyone created some fork with this fix ?