*** title: "AssetNamingStrategy" generated: true --------------- The AssetNamingStrategy determines how file names are generated based on the uploaded source file name, as well as how to handle naming conflicts. :::info This is configured via the `assetOptions.assetNamingStrategy` property of your VendureConfig. ::: ```ts title="Signature" interface AssetNamingStrategy extends InjectableStrategy { generateSourceFileName(ctx: RequestContext, originalFileName: string, conflictFileName?: string): string; generatePreviewFileName(ctx: RequestContext, sourceFileName: string, conflictFileName?: string): string; } ``` * Extends: [`InjectableStrategy`](/current/core/reference/typescript-api/common/injectable-strategy#injectablestrategy)
### generateSourceFileName \RequestContext, originalFileName: string, conflictFileName?: string) => string`} /> Given the original file name of the uploaded file, generate a file name to be stored on the server. Operations like normalization and time-stamping can be performed in this method. The output will be checked for a naming conflict with an existing file. If a conflict exists, this method will be invoked again with the second argument passed in and a new, unique file name should then be generated. This process will repeat until a unique file name has been returned. ### generatePreviewFileName \RequestContext, sourceFileName: string, conflictFileName?: string) => string`} /> Given the source file name generated in the `generateSourceFileName` method, this method should generate the file name of the preview image. The same mechanism of checking for conflicts is used as described above.