Convert Firebase Database JSON to Firestore Collections

FirebaseToFirestore.js

    var db = firebase.firestore();
    var content = require("./sourceData.json");

    content &&
      Object.keys(content).forEach(contentKey => {
        const nestedContent = content[contentKey];
        if (typeof nestedContent === "object") {
          Object.keys(nestedContent).forEach(docTitle => {
            firebase
              .firestore()
              .collection(contentKey)
              .doc(docTitle)
              .set(nestedContent[docTitle]);
          });
        }
      });

master funciono de maravillla

What I should do if I get "Auth error:Error: read ECONNRESET" ? Only first few records are imported, and then this error appears for all other files. I used solution from https://stackoverflow.com/questions/46640981/how-to-import-csv-or-json-to-firebase-cloud-firestore, and it worked, but I don't want to get nested collections, so your script work for me best, but I don't know how to slow it down to get rid of this error. My node.js programming skills are below begginer :)

this will run you out of stack and memory if your input json is too large, as all those set calls are async

Thank you!

Worked perfectly, thanks allot JoeRoddy!