rust

use std::time::Instant;

use axum::{
    extract::Request,
    http::HeaderValue,
    middleware::Next,

#[derive(Default, Debug)]
struct Config {
    host: String,
    port: u16,
    debug: bool,
}

[features]
default = ["json"]
json = ["serde_json"]
yaml = ["serde_yaml"]

[dependencies]

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Debug)]
struct Config {
    host: String,
    port: u16,

use std::any::Any;

pub trait CommandHandler {
    fn name(&self) -> &str;

    fn handle(&self, input: &dyn Any) -> Box<dyn Any>;

fn divide(a: i32, b: i32) -> i32 {
    if b == 0 {
        panic!("division by zero");
    }
    a / b
}

use std::collections::HashMap;
use std::sync::{Arc, Mutex, PoisonError};

#[derive(Default)]
struct Metrics {
    per_endpoint: HashMap<String, u64>,

use nom::{
    bytes::complete::tag,
    character::complete::digit1,
    IResult,
};

use chrono::NaiveDate;
use rust_decimal::Decimal;
use serde::{Deserialize, Deserializer};

#[derive(Debug, Clone, Deserialize)]
pub struct Transaction {

use sqlx::PgPool;

#[derive(sqlx::FromRow)]
struct User {
    id: i32,
    name: String,

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Interval {
    pub start: i64,
    pub end: i64,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
struct UserId(u32);

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
struct PostId(u32);