Updater

Use your project's package manager to add the dependency:

<CommandTabs
  npm="npm run tauri add updater"
  yarn="yarn run tauri add updater"
  pnpm="pnpm tauri add updater"
  deno="deno task tauri add updater"
  bun="bun tauri add updater"
  cargo="cargo tauri add updater"
/>

    1. Run the following command in the `src-tauri` folder to add the plugin to the project's dependencies in `Cargo.toml`:

        ```sh frame=none
        cargo add tauri-plugin-updater --target 'cfg(any(target_os = "macos", windows, target_os = "linux"))'
        ```

    2.  Modify `lib.rs` to initialize the plugin:

        ```rust title="lib.rs" ins={5-6}
        #[cfg_attr(mobile, tauri::mobile_entry_point)]
        pub fn run() {
            tauri::Builder::default()
                .setup(|app| {
                    #[cfg(desktop)]
                    app.handle().plugin(tauri_plugin_updater::Builder::new().build());
                    Ok(())
                })
                .run(tauri::generate_context!())
                .expect("error while running tauri application");
        }
        ```

    3.  You can install the JavaScript Guest bindings using your preferred JavaScript package manager:

        <CommandTabs
            npm="npm install @tauri-apps/plugin-updater"
            yarn="yarn add @tauri-apps/plugin-updater"
            pnpm="pnpm add @tauri-apps/plugin-updater"
            deno="deno add npm:@tauri-apps/plugin-updater"
            bun="bun add @tauri-apps/plugin-updater"
        />

  </Steps>
</TabItem>

{
  "bundle": {
    "createUpdaterArtifacts": true
  }
}

{
  "bundle": {
    "createUpdaterArtifacts": "v1Compatible"
  }
}

{
  "bundle": {
    "createUpdaterArtifacts": true
  },
  "plugins": {
    "updater": {
      "pubkey": "CONTENT FROM PUBLICKEY.PEM",
      "endpoints": [
        "https://releases.myapp.com/{{target}}/{{arch}}/{{current_version}}",
        // or a static github json file
        "https://github.com/user/repo/releases/latest/download/latest.json"
      ]
    }
  }
}

{
  "plugins": {
    "updater": {
      "windows": {
        "installMode": "passive"
      }
    }
  }
}

{
  "version": "",
  "notes": "",
  "pub_date": "",
  "platforms": {
    "linux-x86_64": {
      "signature": "",
      "url": ""
    },
    "windows-x86_64": {
      "signature": "",
      "url": ""
    },
    "darwin-x86_64": {
      "signature": "",
      "url": ""
    }
  }
}

{
  "version": "",
  "pub_date": "",
  "url": "",
  "signature": "",
  "notes": ""
}

import { check } from '@tauri-apps/plugin-updater';
import { relaunch } from '@tauri-apps/plugin-process';

const update = await check();
if (update) {
  console.log(
    `found update ${update.version} from ${update.date} with notes ${update.body}`
  );
  let downloaded = 0;
  let contentLength = 0;
  // alternatively we could also call update.download() and update.install() separately
  await update.downloadAndInstall((event) => {
    switch (event.event) {
      case 'Started':
        contentLength = event.data.contentLength;
        console.log(`started downloading ${event.data.contentLength} bytes`);
        break;
      case 'Progress':
        downloaded += event.data.chunkLength;
        console.log(`downloaded ${downloaded} from ${contentLength}`);
        break;
      case 'Finished':
        console.log('download finished');
        break;
    }
  });

  console.log('update installed');
  await relaunch();
}

use tauri_plugin_updater::UpdaterExt;

pub fn run() {
  tauri::Builder::default()
    .setup(|app| {
      let handle = app.handle().clone();
      tauri::async_runtime::spawn(async move {
        update(handle).await.unwrap();
      });
      Ok(())
    })
    .run(tauri::generate_context!())
    .unwrap();
}

async fn update(app: tauri::AppHandle) -> tauri_plugin_updater::Result<()> {
  if let Some(update) = app.updater()?.check().await? {
    let mut downloaded = 0;

    // alternatively we could also call update.download() and update.install() separately
    update
      .download_and_install(
        |chunk_length, content_length| {
          downloaded += chunk_length;
          println!("downloaded {downloaded} from {content_length:?}");
        },
        || {
          println!("download finished");
        },
      )
      .await?;

    println!("update installed");
    app.restart();
  }

  Ok(())
}

#[cfg(desktop)]
mod app_updates {
    use std::sync::Mutex;
    use serde::Serialize;
    use tauri::{ipc::Channel, AppHandle, State};
    use tauri_plugin_updater::{Update, UpdaterExt};

    #[derive(Debug, thiserror::Error)]
    pub enum Error {
        #[error(transparent)]
        Updater(#[from] tauri_plugin_updater::Error),
        #[error("there is no pending update")]
        NoPendingUpdate,
    }

    impl Serialize for Error {
        fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
        where
            S: serde::Serializer,
        {
            serializer.serialize_str(self.to_string().as_str())
        }
    }

    type Result<T> = std::result::Result<T, Error>;

    #[derive(Clone, Serialize)]
    #[serde(tag = "event", content = "data")]
    pub enum DownloadEvent {
        #[serde(rename_all = "camelCase")]
        Started {
            content_length: Option<u64>,
        },
        #[serde(rename_all = "camelCase")]
        Progress {
            chunk_length: usize,
        },
        Finished,
    }

    #[derive(Serialize)]
    #[serde(rename_all = "camelCase")]
    pub struct UpdateMetadata {
        version: String,
        current_version: String,
    }

    #[tauri::command]
    pub async fn fetch_update(
        app: AppHandle,
        pending_update: State<'_, PendingUpdate>,
    ) -> Result<Option<UpdateMetadata>> {
        let channel = "stable";
        let url = url::Url::parse(&format!(
            "https://cdn.myupdater.com/{{{{target}}}}-{{{{arch}}}}/{{{{current_version}}}}?channel={channel}",
        )).expect("invalid URL");

      let update = app
          .updater_builder()
          .endpoints(vec![url])?
          .build()?
          .check()
          .await?;

      let update_metadata = update.as_ref().map(|update| UpdateMetadata {
          version: update.version.clone(),
          current_version: update.current_version.clone(),
      });

      *pending_update.0.lock().unwrap() = update;

      Ok(update_metadata)
    }

    #[tauri::command]
    pub async fn install_update(pending_update: State<'_, PendingUpdate>, on_event: Channel<DownloadEvent>) -> Result<()> {
        let Some(update) = pending_update.0.lock().unwrap().take() else {
            return Err(Error::NoPendingUpdate);
        };

        let started = false;

        update
            .download_and_install(
                |chunk_length, content_length| {
                    if !started {
                        let _ = on_event.send(DownloadEvent::Started { content_length });
                        started = true;
                    }

                    let _ = on_event.send(DownloadEvent::Progress { chunk_length });
                },
                || {
                    let _ = on_event.send(DownloadEvent::Finished);
                },
            )
            .await?;

        Ok(())
    }

    struct PendingUpdate(Mutex<Option<Update>>);
}

#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
    tauri::Builder::default()
        .plugin(tauri_plugin_process::init())
        .setup(|app| {
            #[cfg(desktop)]
            {
                app.handle().plugin(tauri_plugin_updater::Builder::new().build());
                app.manage(app_updates::PendingUpdate(Mutex::new(None)));
            }
            Ok(())
        })
        .invoke_handler(tauri::generate_handler![
            #[cfg(desktop)]
            app_updates::fetch_update,
            #[cfg(desktop)]
            app_updates::install_update
        ])
}

import { check } from '@tauri-apps/plugin-updater';

const update = await check({
  proxy: '<proxy url>',
  timeout: 30000 /* milliseconds */,
  headers: {
    Authorization: 'Bearer <token>',
  },
});

use tauri_plugin_updater::UpdaterExt;
let update = app
  .updater_builder()
  .timeout(std::time::Duration::from_secs(30))
  .proxy("<proxy-url>".parse().expect("invalid URL"))
  .header("Authorization", "Bearer <token>")
  .build()?
  .check()
  .await?;

use tauri_plugin_updater::UpdaterExt;
let channel = if beta { "beta" } else { "stable" };
let update_url = format!("https://{channel}.myserver.com/{{{{target}}}}-{{{{arch}}}}/{{{{current_version}}}}");

let update = app
  .updater_builder()
  .endpoints(vec![update_url])?
  .build()?
  .check()
  .await?;

tauri_plugin_updater::Builder::new().pubkey("<your public key>").build()

use tauri_plugin_updater::UpdaterExt;

let update = app
  .updater_builder()
  .pubkey("<your public key>")
  .build()?
  .check()
  .await?;

import { check } from '@tauri-apps/plugin-updater';

const update = await check({
  target: 'macos-universal',
});

tauri_plugin_updater::Builder::new().target("macos-universal").build()

use tauri_plugin_updater::UpdaterExt;
let update = app
  .updater_builder()
  .target("macos-universal")
  .build()?
  .check()
  .await?;

use tauri_plugin_updater::UpdaterExt;

let update = app
  .updater_builder()
  .version_comparator(|current, update| {
    // default comparison: `update.version > current`
    update.version != current
  })
  .build()?
  .check()
  .await?;

use tauri_plugin_updater::UpdaterExt;

let update = app
  .updater_builder()
  .on_before_exit(|| {
    println!("app is about to exit on Windows!");
  })
  .build()?
  .check()
  .await?;

{
  "permissions": [
    ...,
    "updater:default",
  ]
}