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309 lines
10 KiB
Markdown
309 lines
10 KiB
Markdown
---
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title: Updater
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---
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# Configuration
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Once you have your Tauri project ready, you need to configure the updater.
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Add this in tauri.conf.json
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```json
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"updater": {
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"active": true,
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"endpoints": [
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"https://releases.myapp.com/{{target}}/{{current_version}}"
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],
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"dialog": true,
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"pubkey": ""
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}
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```
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The required keys are "active" and "endpoints", others are optional.
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"active" must be a boolean. By default, it's set to false.
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"endpoints" must be an array. The string `{{target}}` and `{{current_version}}` are automatically replaced in the URL allowing you determine [server-side](#update-server-json-format) if an update is available. If multiple endpoints are specified, the updater will fallback if a server is not responding within the pre-defined timeout.
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"dialog" if present must be a boolean. By default, it's set to true. If enabled, [events](#events) are turned-off as the updater will handle everything. If you need the custom events, you MUST turn off the built-in dialog.
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"pubkey" if present must be a valid public-key generated with Tauri cli. See [Signing updates](#signing-updates).
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## Update Requests
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Tauri is indifferent to the request the client application provides for update checking.
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`Accept: application/json` is added to the request headers because Tauri is responsible for parsing the response.
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For the requirements imposed on the responses and the body format of an update, response see [Server Support](#server-support).
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Your update request must *at least* include a version identifier so that the server can determine whether an update for this specific version is required.
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It may also include other identifying criteria such as operating system version, to allow the server to deliver as fine-grained an update as you would like.
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How you include the version identifier or other criteria is specific to the server that you are requesting updates from. A common approach is to use query parameters, [Configuration](#configuration) shows an example of this.
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## Built-in dialog
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By default, updater uses a built-in dialog API from Tauri.
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The dialog release notes is represented by the update `note` provided by the [server](#server-support).
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If the user accepts, the download and install are initialized. The user will be then prompted to restart the application.
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## Javascript API
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**Attention, you need to _disable built-in dialog_ in your [tauri configuration](#configuration), otherwise, events aren't emitted and the javascript API will NOT work.**
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```js
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import { checkUpdate, installUpdate } from "@tauri-apps/api/updater";
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import { relaunch } from "@tauri-apps/api/app";
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try {
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const {shouldUpdate, manifest} = await checkUpdate();
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if (shouldUpdate) {
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// display dialog
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await installUpdate();
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// install complete, restart app
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await relaunch();
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}
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} catch(error) {
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console.log(error);
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}
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```
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## Events
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**Attention, you need to _disable built-in dialog_ in your [tauri configuration](#configuration), otherwise, events aren't emitted.**
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To know when an update is ready to be installed, you can subscribe to these events:
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### Initialize updater and check if a new version is available
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#### If a new version is available, the event `tauri://update-available` is emitted.
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Event: `tauri://update`
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### Rust
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```rust
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window.emit("tauri://update".to_string(), None);
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```
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### Javascript
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```js
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import { emit } from "@tauri-apps/api/event";
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emit("tauri://update");
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```
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### Listen New Update Available
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Event: `tauri://update-available`
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Emitted data:
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```none
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version Version announced by the server
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date Date announced by the server
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body Note announced by the server
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```
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### Rust
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```rust
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window.listen("tauri://update-available".to_string(), move |msg| {
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println!("New version available: {:?}", msg);
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})
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```
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### Javascript
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```js
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import { listen } from "@tauri-apps/api/event";
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listen("tauri://update-available", function (res) {
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console.log("New version available: ", res);
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});
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```
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### Emit Install and Download
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You need to emit this event to initialize the download and listen to the [install progress](#listen-install-progress).
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Event: `tauri://update-install`
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### Rust
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```rust
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window.emit("tauri://update-install".to_string(), None);
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```
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### Javascript
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```js
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import { emit } from "@tauri-apps/api/event";
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emit("tauri://update-install");
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```
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### Listen Install Progress
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Event: `tauri://update-status`
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Emitted data:
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```none
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status [ERROR/PENDING/DONE]
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error String/null
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```
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PENDING is emitted when the download is started and DONE when the install is complete. You can then ask to restart the application.
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ERROR is emitted when there is an error with the updater. We suggest to listen to this event even if the dialog is enabled.
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### Rust
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```rust
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window.listen("tauri://update-status".to_string(), move |msg| {
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println!("New status: {:?}", msg);
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})
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```
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### Javascript
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```js
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import { listen } from "@tauri-apps/api/event";
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listen("tauri://update-status", function (res) {
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console.log("New status: ", res);
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});
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```
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# Server Support
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Your server should determine whether an update is required based on the [Update Request](#update-requests) your client issues.
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If an update is required your server should respond with a status code of [200 OK](http://tools.ietf.org/html/rfc2616#section-10.2.1) and include the [update JSON](#update-server-json-format) in the body. To save redundantly downloading the same version multiple times your server must not inform the client to update.
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If no update is required your server must respond with a status code of [204 No Content](http://tools.ietf.org/html/rfc2616#section-10.2.5).
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## Update Server JSON Format
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When an update is available, Tauri expects the following schema in response to the update request provided:
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```json
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{
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"url": "https://mycompany.example.com/myapp/releases/myrelease.tar.gz",
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"version": "0.0.1",
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"notes": "Theses are some release notes",
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"pub_date": "2020-09-18T12:29:53+01:00",
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"signature": ""
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}
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```
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The only required keys are "url" and "version", the others are optional.
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"pub_date" if present must be formatted according to ISO 8601.
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"signature" if present must be a valid signature generated with Tauri cli. See [Signing updates](#signing-updates).
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## Update File JSON Format
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The alternate update technique uses a plain JSON file meaning you can store your update metadata on S3, gist, or another static file store. Tauri will check against the name/version field and if the version is smaller than the current one and the platform is available, the update will be triggered. The format of this file is detailed below:
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```json
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{
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"name":"v1.0.0",
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"notes":"Test version",
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"pub_date":"2020-06-22T19:25:57Z",
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"platforms": {
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"darwin": {
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"signature":"",
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"url":"https://github.com/lemarier/tauri-test/releases/download/v1.0.0/app.app.tar.gz"
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},
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"linux": {
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"signature":"",
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"url":"https://github.com/lemarier/tauri-test/releases/download/v1.0.0/app.AppImage.tar.gz"
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},
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"win64": {
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"signature":"",
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"url":"https://github.com/lemarier/tauri-test/releases/download/v1.0.0/app.x64.msi.zip"
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}
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}
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}
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```
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# Bundler (Artifacts)
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The Tauri bundler will automatically generate update artifacts if the updater is enabled in `tauri.conf.json`
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If the bundler can locate your private and pubkey, your update artifacts will be automatically signed.
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The signature can be found in the `sig` file. The signature can be uploaded to GitHub safely or made public as long as your private key is secure.
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You can see how it's [bundled with the CI](https://github.com/tauri-apps/tauri/blob/5b6c7bb6ee3661f5a42917ce04a89d94f905c949/.github/workflows/artifacts-updater.yml#L44) and a [sample tauri.conf.json](https://github.com/tauri-apps/tauri/blob/5b6c7bb6ee3661f5a42917ce04a89d94f905c949/examples/updater/src-tauri/tauri.conf.json#L52)
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## macOS
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On MACOS we create a .tar.gz from the whole application. (.app)
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```none
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target/release/bundle
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└── osx
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└── app.app
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└── app.app.tar.gz (update bundle)
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└── app.app.tar.gz.sig (if signature enabled)
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```
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## Windows
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On Windows we create a .zip from the MSI, when downloaded and validated, we run the MSI install.
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```none
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target/release
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└── app.x64.msi
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└── app.x64.msi.zip (update bundle)
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└── app.x64.msi.zip.sig (if signature enabled)
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```
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## Linux
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On Linux, we create a .tar.gz from the AppImage.
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```none
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target/release/bundle
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└── appimage
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└── app.AppImage
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└── app.AppImage.tar.gz (update bundle)
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└── app.AppImage.tar.gz.sig (if signature enabled)
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```
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# Signing updates
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We offer a built-in signature to ensure your update is safe to be installed.
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To sign your updates, you need two things.
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The *Public-key* (pubkey) should be added inside your `tauri.conf.json` to validate the update archive before installing.
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The *Private key* (privkey) is used to sign your update and should NEVER be shared with anyone. Also, if you lost this key, you'll NOT be able to publish a new update to the current user base (if pubkey is set in tauri.conf.json). It's important to save it at a safe place and you can always access it.
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To generate your keys you need to use the Tauri cli.
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```bash
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tauri sign -g -w ~/.tauri/myapp.key
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```
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You have multiple options available
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```bash
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Tauri updates signer.
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USAGE:
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tauri sign [FLAGS] [OPTIONS]
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FLAGS:
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--force Overwrite private key even if it exists on the specified path
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-g, --generate Generate keypair to sign files
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-h, --help Prints help information
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--no-password Set empty password for your private key
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-V, --version Prints version information
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OPTIONS:
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-p, --password <password> Set private key password when signing
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-k, --private-key <private-key> Load the private key from a string
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-f, --private-key-path <private-key-path> Load the private key from a file
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--sign-file <sign-file> Sign the specified file
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-w, --write-keys <write-keys> Write private key to a file
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```
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***
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Environment variables used to sign with the Tauri `bundler`:
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If they are set, and `tauri.conf.json` expose the public key, the bundler will automatically generate and sign the updater artifacts.
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`TAURI_PRIVATE_KEY` Path or String of your private key
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`TAURI_KEY_PASSWORD` Your private key password (optional)
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