Crate serde_either

This crate provides a set of Enums that help you to define data structures that accept either strings, structs or arrays.

Example

use serde::{Serialize, Deserialize};
use serde_either::StringOrStruct;
use serde_json;

#[derive(Serialize, Deserialize)]
struct Authors {
  first_name: String,
  last_name: String
}

#[derive(Serialize, Deserialize)]
struct Book {
  pub authors: StringOrStruct<Authors>
}

// And StringOrStruct is just a normal enum

impl Book {
  fn get_author_name(&self) -> String {
    match &self.authors {
      StringOrStruct::String(s) => s.to_owned(),
      StringOrStruct::Struct(author) => format!("{} {}", &author.first_name, &author.last_name)
    }
  }
}

let books = r#"[
    {
        "authors": {
            "first_name": "John",
            "last_name": "Smith"
        }
    },
    {
        "authors": "Michael J. Smith"
    }
]"#;

let res: Vec<Book> = serde_json::from_str(books).unwrap();
assert_eq!(res[0].get_author_name(), "John Smith");
assert_eq!(res[1].get_author_name(), "Michael J. Smith");

Enums

SingleOrVec

StringOrStruct

StringOrStructOrVec