Leveraging external variables in a webpack bundle

Question

Leveraging external variables in a webpack bundle

I am working on a single page app using Vue and Webpack. Typically, Webpack generates a bundle with various chunks such as app.js and vendor.js. Currently, I am in the process of putting this static spa distribution into a Docker container. My main question is whether there is a way to inject additional JavaScript after the bundle has been created and packaged (in the dist directory) so that I can include specific variables for each deployment. This would be particularly useful for changing the API URL. What would be the most effective approach to achieve this?

javascript docker webpack vue.js

Answer 1

Answer №1

One approach is to store your appconfig.json file in the dist folder and then use axios to fetch it within your /src/main.js file. Here's an example:

// Add your imports here
// ...

if(process.env.NODE_ENV === 'production') {
    axios.get('./appconfig.json')
        .then(response => {
            const config = response.data;
            const host = axios.defaults.baseURL = config.baseURL;
            // Other production configurations

            new Vue({
                el: '#app',
                router,
                components: {App},
                template: '<App/>'
            });
        });
} else {
    // Development configurations

    new Vue({
        el: '#app',
        router,
        components: {App},
        template: '<App/>'
    });
}

By modifying properties in the appconfig.json file, you can update settings in the app without requiring a rebuild or server restart when the user refreshes the page.

Answer 2

One approach is to store your appconfig.json file in the dist folder and then use axios to fetch it within your /src/main.js file. Here's an example:

// Add your imports here
// ...

if(process.env.NODE_ENV === 'production') {
    axios.get('./appconfig.json')
        .then(response => {
            const config = response.data;
            const host = axios.defaults.baseURL = config.baseURL;
            // Other production configurations

            new Vue({
                el: '#app',
                router,
                components: {App},
                template: '<App/>'
            });
        });
} else {
    // Development configurations

    new Vue({
        el: '#app',
        router,
        components: {App},
        template: '<App/>'
    });
}

By modifying properties in the appconfig.json file, you can update settings in the app without requiring a rebuild or server restart when the user refreshes the page.

Leveraging external variables in a webpack bundle

Answer №1

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