use serde::{Serialize, Deserialize}; use bson::oid::ObjectId; #[derive(Serialize, Deserialize, Clone)] pub struct User { pub _id: ObjectId, pub email: String, pub username: String, pub cred: String, } #[async_graphql::Object] impl User { pub async fn id(&self) -> ObjectId {...
fn deserialize(input: Json) -> Result<Self, Self::Error> { todo!() } } 如果此时,你需要又要从Hashmap转为Point。这个操作很简单。但是你可能突然想到,上面Json转为Point,似乎也可以先从Json转为Hashmap,再从Hashmap转为具体的数据结构。进一步来说,如果我有M种要反序列化的结构体,有N种目标结构体,使...
#[derive(Deserialize)] struct Object { ... } impl Object { fn from_file(path: &Path) -> Result<Object, Error> { let mut string = String::new(); File::open(path)?.read_to_string(&mut string)?; let object = json::from_str(&string)?; Ok(object) } } 几个模式 简单说来,有...
也可以引入ResultExt从而给错误加入上下文(context)以分辨想通的错误。比如为了区分io错误,我们可以: use failure::ResultExt; let mut file = File::open(cargo_toml_path).context("Missing Cargo.toml")?; file.read_to_end(&buffer).context("Could not read Cargo.toml")?; 1. 2. 3. 4. 自动推导F...
(Serialize, Deserialize, Debug, Default, Clone)] pub struct Service { #[serde(rename = "ID")] pub id: String, #[serde(rename = "Service")] pub service: String, #[serde(rename = "Address")] pub address: String, #[serde(rename = "Port")] pub port: u16, #[serde(rename = ...
除了HashMap还可以反序列化到Deserialize对象,以及Vec对象, 详情参考:https://docs.rs/axum/latest/axum/extract/path/struct.Path.html 代码如下: use axum::{response::Html, routing::get, Router, extract::Path}; use std::collections::HashMap; ...
它要求您输入应用程序的名称,并要求您通过struct指定配置层级(那是Serialize序列化,Deserialize反序列化),剩下的交给它解决了! #[derive(Debug, Serialize, Deserialize)] struct MyConfig { name: String, comfy: bool, foo: i64, } fn main() -> Result<(), io::Error> { let cfg: ConfyConfig = ...
type Dict = HashMap<String, String>; #[derive(Debug, Deserialize)] pub struct ColumnData { ...
#[derive(Deserialize, Debug, Serialize)] struct Postgresql { username: String, password: String, host: String, port: String, database: String } #[derive(Deserialize, Debug, Serialize)] struct Config { input: Input, redis: Redis, sqlite: Sqlite, ...
#[derive(Deserialize)] pub struct Prompt { prompt: String, } #[derive(Clone)] pub struct AppState { agent: MyAgent, } 我们还将在这里介绍我们的提示处理程序端点: async fn prompt( State(state): State<AppState>, Json(json): Json<Prompt>, ...