ConnectionURLBuilder func for building URL connection.

ExtractTokenMetaData func to extract metadata from JWT.

GenerateFileName func for generate name for uploaded file.

GetFileSize func for getting the file size.

GetLocalFileInfo func for get local file's info (Content-Type, extension, size, etc).

NewValidator func for create a new validator for model fields.

StartServer func for starting a simple server.

StartServerWithGracefulShutdown function for starting server with a graceful shutdown.

TokenValidateExpireTime func for validating given JWT token with expire time.

ValidatorErrors func for show validation errors for each invalid fields.

TokenMetadata struct to describe metadata in JWT.