The key for and array is "files[]" in place of "files"

[sebderiv]

I wonder why, when we upload multiple files, the request is like

files[]:[{....},{...}]

and not simply
files:[{....},{...}]

When I upload only one file everything works well but with multiple files I have troubles for selecting them in my back-end with multer or multiparty due to that special key. I can't select a key that contain special characters like [].

I tried to edit paramNamespace or paramName but that doesn't fix the problem.

With multer I have this error:
{"code":"LIMIT_UNEXPECTED_FILE","field":"files[]","storageErrors":[]}

When I reopen Uploader object and edit createFormData method to remove the [] in the key everything works well.

Am I the only one that encounter this problem?

[tythewebguy]

I think this a Rails convention for passing arrays so the framework knows the data should be an array. But I'm not a Rails guy, so the origin may be something else. But I've seen this syntax used with Rails.

[digitaltoad]

This is a convention that was used in PHP and indeed with Rails as well as other languages/frameworks. It isn't a standard as far as I know. Depending on what you are using on the server, you will either use the key without brackets or with. I'm up for suggestions on this. Do I construct the names programmatically or continue with the current implementation?

[sebderiv]

Ok thank you for the reply.
I think this will be nice if the format of the key can be defined by the developer that will use your plugin in depending on his backend.