将照片从iOS应用程序存储到服务器

Question

My question is about performance. I've built an iOS application that takes photos and stores them into a database.

Is it more efficient to store the base64_encoded image string into a database field or store the file in a folder and only store the file path in the database, then encode the image back into a base64_encoded image when it is retrieved by the application?

My current approach is storing the image in a folder and converting it into a base64_encoded image string when the app fetches the images from the server. I return them in groups of 15 images at a time and this works fine but there is a delay when the server is converting the 15 images into base64 string format.

Thanks for any opinions, suggestions or advice.

Answer 1

Storing a whole image in a database in text format can hugely reduce performance. It is a better idea to store an URL that points to the image.

Answer 2

This is application specific - What is your end goal? Storing base64 strings will be of a larger performance hit, simply because base64 strings can get quite large in size. A path string would generally be smaller. But - if you don't store that image data, you don't own the data and if the path changes, your implementation will break.