unwrap multiple options

[swift notch]

I'm looking for a more elegant way to unwrap multiple option. and here is the my codes in question:

let acc_id = json_val.get("product_id").unwrap().as_i64().unwrap() as i32; 
let user_agent = json_val.get("user_agent").unwrap().to_string();

To provide more context:

• both variables are required within a function and should fail if either fails to unwrap
• json_val is of type JsonValue which is a type from the serde_json lib, pretty much like a hashmap data structure in this case

[lilac sand]

You should use #[derive(Deserialize)] instead.

https://serde.rs

Avoid serde_json::Value 99% of the time

#[derive(Deserialize)]
struct Response {
    product_id: i32,
    user_agent: String,
}

[swift notch]

so if i use #derive(Deserialize), that means I would need to dedicate a struct to handle this. i think this is very fair suggestion. but for the sake of exploring based on this question, does rust have some kinda api to handle it nicely?

[lilac sand]

I think the easiëst thing to do would be to make the function return an Option and then use the ? operator