Learn how to use Vue.js to monitor and interpret changes in file content

Utilizing a Vue component named "Logs," I efficiently monitor changes in my log file without the need for manual checks.

The log file, appropriately named log.txt, is loaded within my site's framework.

Initially faced with the challenge of reading the file within my component, the raw-loader feature proved to be the solution. Referencing the code snippet below:

<script>
    import logs from '!!raw-loader!log.txt';

    export default {
        data: function(){
           return {
               log: "" //log is initially empty
           }
        },
        mounted: function(){

            this.getLog();
        },
        methods: {
            getLog() {

                this.log = logs;
            }
        }

    }

</script>

The above code is straightforward—the getLogs method retrieves the logs when the component is mounted, updating the variable accordingly. This setup functions seamlessly, producing the expected output within the template.

{{ logs }}

Now, my current predicament involves wanting to update the actual log.txt file—initially edited manually but transitioning towards automation—and then instantly view the revised value upon clicking a button.

My attempted strategies include:

  1. Creating a button within the template that triggers this.getLog, yet it fails to load updated data post-click.

  2. Exploring importing the file on demand:

      getLog: function(){
            import('!!raw-loader!ZCRMClientLibrary.log').then(function(log){
                this.logs = log.default;
                console.log( log.default );
                // execute library operations or invoke related methods here
            }.bind(this));
        },
    

Both approaches prove ineffective as the file updates are only visible post-refreshing the page.

An optimal solution likely involves loading the file on demand, though implementation specifics remain elusive to me.

Hence, the pivotal query remains: How can I accomplish this task using Vue.js, JavaScript, and raw-loader? Your guidance and insights are sincerely appreciated.

Answer №1

To resolve the issue of a cached file, consider deleting the cache and re-importing the file:

try {
  delete require.cache['!!raw-loader!ZCRMClientLibrary.log']

  import('!!raw-loader!ZCRMClientLibrary.log').then((log) => {
    this.logs = log.default
    console.log(log.default)
  })
} 
catch (error) { 
  console.log(error)
}

Another solution is to use an arrow function instead of using .bind(this).

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