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feat(common): add new flatten options to validation pipe #3173

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feat(common): add new flatten options to validation pipe #3173

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12 changes: 11 additions & 1 deletion content/techniques/validation.md
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Expand Up @@ -30,7 +30,7 @@ Because this pipe uses the [`class-validator`](https://github.com/typestack/clas
export interface ValidationPipeOptions extends ValidatorOptions {
transform?: boolean;
disableErrorMessages?: boolean;
exceptionFactory?: (errors: ValidationError[]) => any;
exceptionFactory?: (errors: ValidationError[] | string[]) => any;
}
```

Expand Down Expand Up @@ -129,6 +129,16 @@ In addition to these, all `class-validator` options (inherited from the `Validat
<td><code>boolean</code></td>
<td>When set to true, validation of the given property will stop after encountering the first error. Defaults to false.</td>
</tr>
<tr>
<td><code>disableFlattenErrorMessages</code></td>
<td><code>boolean</code></td>
<td>When set to true, the validation errors array will maintain its original structured format as <code>ValidationError</code> objects, rather than being flattened into an array of strings.</td>
</tr>
<tr>
<td><code>flatExceptionFactoryMessage</code></td>
<td><code>boolean</code></td>
<td>When set to true and an exceptionFactory is provided, the validation errors array will be flattened into an array of strings.</td>
</tr>
</table>

> info **Notice** Find more information about the `class-validator` package in its [repository](https://github.com/typestack/class-validator).
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