Function serde_any::de::from_reader

pub fn from_reader<T, R>(reader: R, format: Format) -> Result<T, Error> where
    T: DeserializeOwned,
    R: Read, 

Deserialize from an IO stream using a specified format

Errors

If the specified format is not supported, this function returns Error::UnsupportedFormat.

If the conversion itself fails, the format-specific variant of Error will be returned, with the underlying error as its cause.

Example

#[macro_use]
extern crate serde;
extern crate serde_any;
extern crate failure;

use failure::Error;
use std::fs::File;
use std::path::Path;

use serde_any::Format;

#[derive(Deserialize, Debug)]
struct User {
    fingerprint: String,
    location: String,
}

fn read_user_from_file<P: AsRef<Path>>(path: P, format: Format) -> Result<User, Error> {
    // Open the file in read-only mode.
    let file = File::open(path)?;

    // Read the contents of the file as an instance of `User`.
    let u = serde_any::from_reader(file, format)?;

    // Return the `User`.
    Ok(u)
}

fn main() {
    match read_user_from_file("test.json", Format::Json) {
        Ok(u) => println!("{:#?}", u),
        Err(e) => println!("Error deserializing user: {}", e),
    };
}