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24 lines
1.9 KiB
Markdown
24 lines
1.9 KiB
Markdown
# Apps Data folder Example
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This example demonstrates how to utilize the Apps Data folder to store data that is not part of the app itself, such as user data, configuration files, and so forth.
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## What is the Apps Data Folder?
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The **Apps Data** folder is a folder used to store data for external apps that are not part of the main firmware.
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The path to the current application folder is related to the `appid` of the app. The `appid` is used to identify the app in the app store and is stored in the `application.fam` file.
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The Apps Data folder is located only on the external storage, the SD card.
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For example, if the `appid` of the app is `snake_game`, the path to the Apps Data folder will be `/ext/apps_data/snake_game`. But using raw paths is not recommended, because the path to the Apps Data folder can change in the future. Use the `/data` alias instead.
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## How to get the path to the Apps Data folder?
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You can use `/data` alias to get the path to the current application data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `/data/config.txt`. But this way is not recommended, because even the `/data` alias can change in the future.
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We recommend to use the `APP_DATA_PATH` macro to get the path to the Apps Data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `APP_DATA_PATH("config.txt")`.
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## What is the difference between the Apps Assets folder and the Apps Data folder?
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The Apps Assets folder is used to store the data <u>provided</u> with the application. For example, if you want to create a game, you can store game levels (contant data) in the Apps Assets folder.
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The Apps Data folder is used to store data <u>generated</u> by the application. For example, if you want to create a game, you can save the progress of the game (user-generated data) in the Apps Data folder. |