loading all json files in a folder

Unity Engine
1

What is the best way to load all the Json files in folder without calling each one by name?

2

I mean… to load a file you need to have its name.

If you mean without hard coding their names… you can get all the files in a folder with either Directory.GetFiles, or Directory.EnumerateFiles:

Note both take an optional search pattern to filter the files (so like *.json is all files ending in .json).

Then load each one individually however you like. File.ReadAllText, FileStream, StreamReader, whatever.

3

My issue is. I am downloading models at runtime then serializing them. When serializing them I am adding the model name to the file name…but when a user is using it in the field they will not know what all the model names will be.

I was wondering how I would use *_geo.json" but not sure how to do that.

4

I am storing the json files with this:

string filename = Path.Combine(Application.persistentDataPath, modelFileNmae + SAVE_FILE);

The “SAVE_FILE” is the "geo.json and the modelFileNmae is the models name.

5

Did you try Directory.EnumerateFiles or Directory.GetFiles with *_geo.json as your filter?

Cause it should work.

Just use Application.persistentDataPath as the directory you’re looking in. Like so:

foreach(var file in Directory.EnumerateFiles(Application.persistentDataPath, "*_geo.json"))

Note, you’ll need to be “using” the System.IO namespace.

1 Like
6

Trying to figure it out now.

Is it going to step through each one individually or all at once?

7

It’s a foreach loop, the loop will step through the iteration of the entire thing.

EnumerateFiles is an enumerable and enumerates one by one. GetFiles returns an array which can be enumerated.

8

Would adding each file name to an array and serializing that then step through them on restart work you think?

9

I got it to work. Thanks dude. I’ll need to fine tune it though.