Rust Programming Cookbook

How to do it...

Follow the steps to implement csv to the JSON converter:

1. Open Cargo.toml to add a few dependencies we need for parsing CSV and creating JSON:

[dependencies]csv = "1.1"serde_json = "1"

2. Now, let's add some code. As usual, we are going to import a few things in src/main.rs, so we can use them in the code:

use csv;use serde_json as json;use std::io;

3. The next thing to do is add a function that converts the input data into JSON. We can do this elegantly using the Iterator trait that each csv::StringRecord instance implements:

fn to_json(headers: &csv::StringRecord, current_row: csv::StringRecord) -> io::Result<json::Value> {    let row: json::Map<String, json::Value> = headers        .into_iter()        .zip(current_row.into_iter()) .map(|(key, ...