Parsing a CSV file using NodeJS

Question

With nodejs I want to parse a .csv file of 10000 records and do some operation on each row. I tried using http://www.adaltas.com/projects/node-csv. I couldnt get this to pau

Answer 1

In order to pause the streaming in fast-csv you can do the following:

let csvstream = csv.fromPath(filePath, { headers: true })
    .on("data", function (row) {
        csvstream.pause();
        // do some heavy work
        // when done resume the stream
        csvstream.resume();
    })
    .on("end", function () {
        console.log("We are done!")
    })
    .on("error", function (error) {
        console.log(error)
    });