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https://github.com/eeue56/elm-static-html-lib


https://github.com/eeue56/elm-static-html-lib

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README 

        
# elm-static-html-lib



Generate static html by passing an optional json object to your Elm views.



Library version of elm-static-html.



## Install



```

npm install --save elm-static-html-lib

```



## Usage



### with an argument



In this example, we use `decodeModel` to turn the passed JSON into a model that our view can use.



```javascript



import { elmStaticHtml } from "elm-static-html-lib";



const model = { name: "Noah", age : 24 };

const options = { model : model, decoder: "MyModule.decodeModel" };



elmStaticHtml("/absolute/path/to/elm-package.json", "MyModule.view", options)

.then((generatedHtml) => {

    fs.writeFileSync("output.html", generatedHtml);

});



```



### without an argument



In this case, our view has the type `Html msg`.



```javascript



import { elmStaticHtml } from "elm-static-html-lib";



const options = { };



elmStaticHtml("/absolute/path/to/elm-package.json", "MyModule.view", options)

.then((generatedHtml) => {

    fs.writeFileSync("output.html", generatedHtml);

});



```



### With no indent



In order to truly match what Elm generates at runtime, you may not want to have spaces or indent inserted. You can do this by setting the `newLines` and `indent` options like so:



```javascript



import { elmStaticHtml } from "elm-static-html-lib";



const model = { name: "Noah", age : 24 };

const options = { model : model, decoder: "MyModule.decodeModel", newLines: false, indent: 0 };



elmStaticHtml("/absolute/path/to/elm-package.json", "MyModule.view", options)

.then((generatedHtml) => {

    fs.writeFileSync("output.html", generatedHtml);

});



```



## multiple at once



When you want to render many views - particularly when they share dependencies - it is faster to use the `multiple` function.



```javascript

const configs = [ 

    { viewFunction: "MyModule.view", model, decoder: "MyModule.decodeModel", fileOutputName: "grouped1.html" }, 

    { viewFunction: "MyModule.lazyView", model, decoder: "MyModule.decodeModel", fileOutputName: "grouped2.html" }, 

    ];



elmStaticHtml.multiple("/absolute/path/to/elm-package.json", configs)

.then((generatedHtmls) => {

    generatedHtmls

        .map((output) => fs.writeFileSync(output.fileOutputName, output.generatedHtml));

});

```



### API description



```js

elmStaticHtml(packagePath, viewFunction, options)

```



- **packagePath** *(String)*: An absolute path to the `elm-package.json` of your project.

- **viewFunction** *(String)*: [Qualified name](https://guide.elm-lang.org/reuse/modules.html) to the view function. Format `.`

- **options** *(object)*: A map of options. Can be either empty or contain a model and a qualified decoder name. See above for usage details.



```js

elmStaticHtml.multiple(packagePath, configs)

```



- **packagePath** *(String)*: An absolute path to the `elm-package.json` of your project.

- **configs** *ViewFunctionConfig[]*: An array of configurations, see below.

- **alreadyRun?** *(Boolean)*: When true, doesn't generate boilerplate again. Useful if only your models have changed, and not your elm code.

- **elmMakePath?** *(String)*: Specify the path to elm-make.

- **installMethod** *(String)*: Specify a custom package installation command.



**returns** *Output*: An object containing the generated html and the outputFileName.



```typescript

export interface ViewFunctionConfig {

    viewFunction: string;

    fileOutputName: string;

    model?: any;

    decoder?: string;

    indent?: number;

    newLines?: boolean;

}

```



- **viewFunction**: [Qualified name](https://guide.elm-lang.org/reuse/modules.html) to the view function. Format `.`

- **fileOutputName**: File name. This value is not touched and given back to `Output`, to make saving the generated html easier

- **model?**: Optional object that is given as the model to your view function

- **decoder?**: [Qualified name](https://guide.elm-lang.org/reuse/modules.html) to the decoder for `model`. Format `.`

- **indent?**: Optional formatting flag. Sets whether the generated html should be indented (default true)

- **newLines?**: Optional formatting flag. Sets whether new tags should start on a new line when (default true)



```typescript

export interface Output {

    generatedHtml: string;

    fileOutputName: string;

}

```



- **generatedHtml**: The html that your view has produced

- **fileOutputName**: A file name that is threaded through for convenience



### More examples



Check out the [example](https://github.com/eeue56/elm-static-html-lib/tree/master/example) folder for a more in-depth example.



## Production



If you are running this in production, you may want to only generate the boilerplate files once. You can do that by setting the option `alreadyRun` to true. When `alreadyRun` is true, the Elm app is only started -- no boilerplate is generated.



You may want to hide warnings, which you can do by setting `HIDE_WARNINGS=true` in your env.



## Changelog



### 0.1.0



- elmStaticHtml now exposes two functions with no default, e.g `import { elmStaticHtml, multiple }`

- `multiple` added to provide a way to compile multiple views in a single pass