Rust Requires Chilkat v11.1.0+

Create more Complex JSON Document

See more JSON Examples

Sample code to create the following JSON document:

    {  
        "Title": "The Cuckoo's Calling",  
        "Author": "Robert Galbraith",  
        "Genre": "classic crime novel",  
        "Detail": {  
            "Publisher": "Little Brown",  
            "Publication_Year": 2013,  
            "ISBN-13": 9781408704004,  
            "Language": "English",  
            "Pages": 494  
        },  
        "Price": [  
            {  
                "type": "Hardcover",  
                "price": 16.65  
            },  
            {  
                "type": "Kindle Edition",  
                "price": 7.00  
            }  
        ]  
    }  

Rust

let json = chilkat::JsonObject::new();

// The only reason for failure in the following lines of code would be an out-of-memory condition..

// An index value of -1 is used to append at the end.
let index = -1;

let _ = json.add_string_at(-1, "Title", "The Cuckoo's Calling").is_ok();
let _ = json.add_string_at(-1, "Author", "Robert Galbraith").is_ok();
let _ = json.add_string_at(-1, "Genre", "classic crime novel").is_ok();

// Let's create the Detail JSON object:
let detail = chilkat::JsonObject::new();
let _ = json.append_object2("Detail", &detail);

let _ = detail.add_string_at(-1, "Publisher", "Little Brown").is_ok();
let _ = detail.add_int_at(-1, "Publication_Year", 2013).is_ok();
let _ = detail.add_number_at(-1, "ISBN-13", "9781408704004").is_ok();
let _ = detail.add_string_at(-1, "Language", "English").is_ok();
let _ = detail.add_int_at(-1, "Pages", 494).is_ok();

// Add the array for Price
let a_price = chilkat::JsonArray::new();
let _ = json.append_array2("Price", &a_price);

// Entry in aPrice will be a JSON object.

// Append a new/empty ojbect to the end of the aPrice array.
let price_obj = chilkat::JsonObject::new();

let _ = a_price.add_object_at2(-1, &price_obj);
let _ = price_obj.add_string_at(-1, "type", "Hardcover").is_ok();
let _ = price_obj.add_number_at(-1, "price", "16.65").is_ok();

let _ = a_price.add_object_at2(-1, &price_obj);
let _ = price_obj.add_string_at(-1, "type", "Kindle Edition").is_ok();
let _ = price_obj.add_number_at(-1, "price", "7.00").is_ok();

json.set_emit_compact(false);
println!("{}", json.emit().unwrap_or_default());