Looking to upload a JSON file via file upload in Angular (using version 6) and read its contents directly within the app, without sending it to an API first.
Have been searching for ways to achieve this without success, as most results are geared towards reading local files on a server in Angular instead of through a file upload.
Here is a suggestion for you to try:
// Within your Template:
<input type="file" name="files" (change)="uploadFile($event)" />
// Inside your component:
uploadFile(event) {
if (event.target.files.length !== 1) {
console.error('No file selected');
} else {
const reader = new FileReader();
reader.onloadend = (e) => {
// handle data processing
console.log(reader.result.toString());
};
reader.readAsText(event.target.files[0]);
}
}
You can view a demonstration of this on this link. Take a look and see if it meets your requirements.
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