nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Child Item

How to filter a folder by File Format using SwiftyDropbox?

Shahaf L.

I’m working on an app that deals with text files and I want to present a list of files in a folder, but only files with a specific format. For example, only .txt or .md files.

Is it possible? If it is, How can I do that?

Thanks

Find more posts tagged with

API

Abuse

Comments

Greg-DB

The API itself doesn't offer filtering like that, so you'll have to use listFolder and do the filtering client-side, based on the extension in the metadata.

Shahaf L.

Hi Gregory,

I’m currently using this to view all the files in the folder:

client.files.listFolder(path: "\(folderPath)").response { response, error in

print("*** List folder ***")

if let result = response {

print("Folder contents:")

for entry in result.entries {

print(entry.name)

self.files.append(entry)

}

(self.view as! UITableView).reloadData()

print("Data Reloaded")

} else {

print(error!)

}

If I understood you correctly, I should use this:

client.files.listFolder(path: "\(folderPath)").response { response, error in

print("*** List folder ***")

if let result = response {

print("Folder contents:")

for entry in result.entries {

print(entry.name)

if entry.name.rangeOfString(“.txt") != nil {

self.files.append(entry)

}

(self.view as! UITableView).reloadData()

print("Data Reloaded")

} else {

print(error!)

}

Is this what you meant?

Thanks for the quick reply

Greg-DB

Yes, that's the basic idea.

Note that you probably want a more strict version of that though, since your code would match ".txt" anywhere in the name, e.g., I think your code would have a false positive on something like "my.txts.html".

Also, make sure to differentiate between files/folders/deleted entries.

Shahaf L.

Hi Gregory,

This is what I ended up using:

for entry in result.entries {

client.files.getMetadata(path: entry.pathLower).response { response, error in

if let metadata = response {

if let file = metadata as? Files.FileMetadata {

print("This is a file with path: \(file.pathLower)")

if file.name.hasSuffix(".txt") || file.name.hasSuffix(".md") || file.name.hasSuffix(".html") {

self.files.append(entry)

print("File \(file.name) Added to the Array")

} else {

print("Unsupported File Format")

}

} else if let folder = metadata as? Files.FolderMetadata {

print("This is a folder with path: \(folder.pathLower)")

self.files.append(entry)

}

} else {

print(error!)

}

I got a new question, but I’ll create a new post for it.

Thanks for the help!

Nikita I.1

Hi Shahaf,

even though it's not connected to your main question, why won't you try Swift pattern matching for path extension check, e.g.

let ext = (file.name as NSString).pathExtension;

switch (ext) {

case "txt", "md", "html":

self.files.append(entry)

default:

continue;

}

instead of having to check a suffix for each of your extensions?

Regards, Nik

Shahaf L.

Hi Nik,

That’s a nice idea

I’ll give it a try.

Thanks