A collection of useful decorators (mainly Nest.js)

• IsOptional()

How is this different from the default IsOptional? This one also checks for undefined and empty strings.

• Multipart()

This is a decorator written for Nest.js with FastifyAdapter to easily upload files (while also validating fields just like @Body() with a depth of 1). Requires @fastify/multipart to be setup prior to using it.

You need environment variables to use it.

• STORAGE_DRIVER = "local" | "s3"

If using disk storage:

• UPLOAD_FOLDER

If using Amazon S3:

• AWS_ACCESS_KEY_ID
• AWS_BUCKET
• AWS_SECRET_ACCESS_KEY
• AWS_REGION

• QueryRequired()

This is just like the default @Query() decorator from Nest.js, but it throws an error if the parameter is not present.