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48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
---
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sidebar_position: 1
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---
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# Introduction
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The runtime is a library that provides utility methods for your application. There is both a Go and Javascript runtime
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and the aim is to try and keep them at parity where possible.
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The Go Runtime is available through importing `github.com/wailsapp/wails/v2/pkg/runtime`. All methods in this package
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take a context as the first parameter. This context should be obtained from the [OnStartup](../options.mdx#onstartup)
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or [OnDomReady](../options.mdx#ondomready) hooks.
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:::info Note
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Whilst the context will be provided to the
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[OnStartup](../options.mdx#onstartup) method, there's no guarantee the runtime will work in this method as
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the window is initialising in a different thread. If
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you wish to call runtime methods at startup, use [OnDomReady](../options.mdx#ondomready).
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:::
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The Javascript library is available to the frontend via the `window.runtime` map. There is a runtime package generated when using `dev`
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mode that provides Typescript declarations for the runtime. This should be located in the `wailsjs` directory in your
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frontend directory.
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### Quit
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Go Signature: `Quit(ctx context.Context)`
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Quits the application.
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### Environment
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Go Signature: `Environment(ctx context.Context) EnvironmentInfo`
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Returns details of the current environment.
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#### EnvironmentInfo
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```go
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type EnvironmentInfo struct {
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BuildType string // Either "production", "debug" or "dev"
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}
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```
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