I'd probably use the GSON library which will marshall Java objects. There's an array example to get you started, as well as a ton of others in the user guide. ... XStream provides a very convenient way to transform JSON to JAVA and back. Its annotation based and does the conversion job pretty well. More on stackoverflow.com

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Let's go a bit out of order: Does indentation matter in JSON? No. The only things that matter in JSON are the few symbols it uses, it ignores whitespace outside of strings. But also: I don't know how to format it to have every variable listed in the correct spot. Order does not matter in JSON. That's why every property has a name. For the rest of it, here's a quick crash course. You didn't say how you're "making a JSON file". Usually in C# these days, we use a "serialization library". MS has one in I think the System.Text namespace, but before that existed everyone used a package called Newtonsoft.JSON. They both work roughly the same: they convert C# objects to and from JSON. So if I wrote a class like this: public class Example { public int Value { get; set; } } I'd write code (sort of, I'm not double-checking) like this with Newtonsoft: var example = new Example(); example.Value = 10; var json = JsonConvert.SerializeObject(example); The JSON I'd get in return would look like: { "Value": 10 } These libraries support a lot of types by default. We can go backwards from JSON back to C#. Suppose I saw JSON like this: { "examples": [ { "Value": 10 } ] } Think about it by reading from top to bottom. This is: An object with properties: "examples", an array of objects that have these properties: "Value", an integer I see two objects in the definitions, so I need to write two classes: // "an object with an 'examples' property" // Note the name DOES NOT MATTER, because JSON objects do not have type names. public class Examples { // "an array of objects" // Note I can use a capital letter even though the JSON used lowercase, the serializer // is smart enough to handle that. public Example[] Examples { get; set; } } // "an object with a 'Value' property" public class Example { public int Value { get; set; } } The important thing to note is the serializer is smart enough to see that since Examples has an array of Example, it should try to parse the "inner" objects to fit the Example class. My second example intentionally looks a lot like your JSON. You have an object with an "APInvoices" property that is an array of other objects. THOSE objects have many properties, including some like "Images" that are arrays of OTHER objects. To serialize/deserialize your JSON, you're going to need to write 7 or 8 total C# classes. More on reddit.com

Well, JSON.stringify and JSON.parse are synchronous methods that unfortunately you can't pipe to and from. Like u/nissen2 suggests, you'll find some modules out there that will provide you what you're looking for.

Ah, I think I got it. Is there a way to permanently increase the amount of memory that node has access to? Thx.

While this may solve your problem in the mean time, I wouldn't suggest simply allocating more memory (especially with a huge JSON object.)

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