Storing a text file in Firestore's text field removes line breaks

问题

I am trying to store a CSV file in a text field inside Cloud Firestore. However Firestore is stripping out all line breaks and storing the entire CSV file as a single line. The Firestore Data Types documentation does not say anything about a restriction on the type of characters that can be stored other than they should be UTF-8:

Up to 1,048,487 bytes (1 MiB - 89 bytes). Only the first 1,500 bytes of the UTF-8 representation are considered by queries.

Is there a documented restriction?
If indeed line breaks can't be stored, what is the recommended alternative? Base64 encoding?

Update

The code roughly looks like this:

/**** Read CSV file ****/
let csvFileText;
const reader = new FileReader();
reader.onload = () => {
    this.setCsvFileText(reader.result);
};
reader.readAsText(file);

//------ Wait for user to hit submit button ------

/**** Create order in Firestore ****/
const order = {
    csvFileText: csvFileText,
    firstName: 'John',
    lastName: 'Doe',
    email: 'jdoe@gmail.com'
}

return this.db
    .collection('orders')
    .add(order)
    .then(docRef => docRef.id);

Just before calling Firestore, I can see that order.csvFileText is a nice CSV file with line breaks (in Chrome debugger). When I look at the value stored in Firestore (in the Firebase console), the line breaks are lost.

回答1:

All data going in to and out of the database is preserved as-is. What you're seeing is the fact that the Firebase console shows a simplified view of the data without carriage returns. If this isn't good for your use case, please file a feature request.

来源：https://stackoverflow.com/questions/54638042/storing-a-text-file-in-firestores-text-field-removes-line-breaks

标签

javascript

firebase

google-cloud-firestore