languid goblet
I am working on a feature right now where i need to create a config.json file on the Rust side and read that file on the JS side.
I've looked at the FS and Path API's - but i am a little confused.
How do i save a file to a specific location like confDir on the rust side - righht now i am just writing a file to config/json local to the app install directory using an std::fs::write. Which i know is not a good solution.
Any help would be great 🙂
steel crypt
So if you want an app specific dir (like appConfigDir) you need access to something that implement tauri's Manager trait, meaning App, AppHandle and Window. All of them can be get somewhere like App in the setup hook or AppHandle and Window in tauri commands.
And then it'd be fairly easy, something like this: ```rs
let mut config = app_handle.path_resolver().app_config_dir().unwrap();
config_dir.push("config.json");
std::fs::write(&config, "content");
and then you can swap out the write function with something more custom if its behavior doesn't fit
languid goblet
So if you want an app specific dir (like `appConfigDir`) you need access to _som...
thank you, helps a lot. Do you have a link to the section of documentation that discusses this?
Also, is there anyway to create a custom path for the path resolver?
steel crypt
Also, is there anyway to create a custom path for the path resolver?
you'll probably not use the path resolver in that case. all the resolver does is use a path from the path module and append the app id from tauri.conf.json
languid goblet
you'll probably not use the path resolver in that case. all the resolver does is...
mm, my issue is that when i create a custom path. let's say local to the app install directory, i am having trouble reading it on the front-end. I am not sure how to pass the FS API the local path.
I am probably just missing something obvious though.
const config = await readTextFile('config.json', { dir: BaseDirectory.AppConfig })
const config_json = JSON.parse(config)
console.log(config_json)
How do i pass my custom path to the dir member of the FSOptions type?
steel crypt
if we're talking about the app install dir then this is intentionally not exposed in the frontend (though the resource dir is the same dir on windows) because a) it's read-only on windows if installed via admin (default right now) and b) it's always read-only after installation on linux and macos
languid goblet
if we're talking about the app install dir then this is intentionally not expose...
okay, that makes a lot more sense.
steel crypt
and for paths in general you either have to have your own "spec" so like, just re-use the same path conventions on both sides, or send the path from rust to js via events or the command's return value
languid goblet
and for paths in general you either have to have your own "spec" so like, just r...
fair, alright. Thank you, that cleared up my confusion.
languid goblet
Question - does the dev server for tauri not run in Admin? My sidecar keeps getting a Access Denied when trying to write to the AppConfig directory.
I can write to that directory using the tauri api - but not from my sidecars --output arg
steel crypt
Question - does the dev server for tauri not run in Admin? My sidecar keeps gett...
no, nothing runs in admin
languid goblet
is their anyway to elevate just that process?
for some reason, the sidecar i am using needs elevated perms to write to a specific directory.
steel crypt
no built-in way no
but if it's writing to the same AppConfig dir your tauri app writes to i don't think it's actually a permission issue. sounds more like it doesn't know any better and just throws that error
or maybe some other app has a lock on that file (because it's reading/writing it)
languid goblet
yeah, it's not a lock, i am trying to download a file from the internet to that location. A release asset from a github repo.
i think it may be the first issue - as it throws the error in terminal no matter what unless i am in an admin terminal
languid goblet
no built-in way no
Thank you again - the only jank solution i can think of is to download to the local app directory and then use the tauri fs api to write the zip file to the AppConfig dir so that i can unpack the zip archive and use the files.
But that ... seems like a really annoying workaround.
steel crypt
i mean, you could download it in the tauri app (no need for tauri's fs api if you use rust, you can pipe it from reqwest straight into the fs with rust's File (or use our upload plugin which also has a download function if you want to do it in js)
but yes, indeed really weird that it doesn't work
or wait
i'm a bit confused by the "AppConfig" and "local app directory" mentions here. If one of them means the app's install dir then it can't work because it's read-only
but if you mean that the tauri app wouldn't be able to write it either so nevermind me
languid goblet
i mean, you _could_ download it in the tauri app (no need for tauri's fs api if ...
the upload plugin looks nice - didn't know it had a download functionality. ill try it out 🙂 thank you.
steel crypt
still looking for a better name for the plugin that conveys that it can do both
if you have any ideas hit me up 
languid goblet
the upload plugin did not work either
Access Denied
yet, i can easily read and write to that directory using tauri
steel crypt
the plugin expects a file path that includes the file name
so in this case the acess denied error may come from it trying to open/write a directory as a file
languid goblet
so in this case the acess denied error may come from it trying to open/write a d...
ah, okay. Noted, i didn't see that in the documentation. Would be nice to mention that 🙂
i'll try that now
steel crypt
would be even better if it could resolve the file name automatically tbh https://github.com/tauri-apps/plugins-workspace/issues/271
languid goblet
would be even better if it could resolve the file name automatically tbh <https:...
absolutely, that would be great.
You were absolutely correct - that was the issue.