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Improve implicit FormFata detection. Add tests. #1539

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Improve implicit FormFata detection. Add tests. #1539

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12 changes: 9 additions & 3 deletions src/schema-routes/schema-routes.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -590,9 +590,15 @@ export class SchemaRoutes {
// It needed for cases when swagger schema is not declared request body type as form data
// but request body data type contains form data types like File
if (
this.FORM_DATA_TYPES.some((dataType) =>
content.includes(`: ${dataType}`),
)
this.FORM_DATA_TYPES.some((dataType) => {
// Match e.g. ": File" followed by word boundary, array brackets, or union/nullable syntax
// This prevents false positives like ": FileType" or ": SomeFile"
// Escape special regex characters (getSchemaType can theoretically return complex types like "File | null" or "UtilRequiredKeys<File, ...>")
const escapedType = dataType.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
return new RegExp(`:\\s*${escapedType}(?:\\[\\]|\\s*\\||\\b|$)`).test(
content,
);
})
) {
contentKind = CONTENT_KIND.FORM_DATA;
}
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