Renamed directories

service/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "weather-service"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-web = "4.4.0"
+actix-rt = "2.9.0"
+actix-cors = "0.6.4"
+actix-identity = "0.5.0"
+chrono = { version = "0.4.30", features = ["serde"] }
+dotenv = "0.15.0"
+diesel = { version = "2.0", features = ["postgres", "r2d2", "uuid", "chrono"] }
+postgis_diesel = { version = "2.2.1", features = ["serde"] }
+diesel_migrations = { version = "2.0", features = ["postgres"] }
+env_logger = "0.10.0"
+lazy_static = "1.4.0"
+listenfd = "1.0.1"
+quick-xml = { version = "0.30.0", features = ["serialize"] }
+r2d2 = "0.8.10"
+reqwest = "0.11.20"
+serde = {version = "1.0.188", features = ["derive"]}
+serde_json = "1.0.105"
+tokio = { version = "1.32.0", features = ["macros", "rt"] }
+uuid = { version = "1.4.1", features = ["serde", "v4"] }
+log = "0.4.20"

service/README.md

@@ -0,0 +1,62 @@
+# Aviation Weather
+
+## UI
+
+## Service
+
+## REST API
+The REST API for the weather service is described below.
+
+### Import Airports
+---
+#### Request
+`GET /import`
+
+#### Response
+```
+```
+
+### Get Airports
+---
+#### Request
+`GET /airports`
+
+#### Response
+```
+```
+
+### Get Airport
+---
+#### Request
+`GET /airports/{icao}`
+
+#### Response
+```
+```
+
+### Create Airport
+---
+#### Request
+`CREATE /airports`
+
+#### Response
+```
+```
+
+### Update Airport
+---
+#### Request
+`PUT /airports/{icao}`
+
+#### Response
+```
+```
+
+### Delete Airport
+---
+#### Request
+`DELETE /airports/{icao}`
+
+#### Response
+```
+```

service/diesel.toml

@@ -0,0 +1,7 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"
+custom_type_derives = ["diesel::sql_types::SqlType", "std::fmt::Debug"]
+import_types = ["diesel::sql_types::*", "postgis_diesel::sql_types::*"]

service/migrations/000000_create_airports/down.sql

@@ -0,0 +1 @@
+DROP TABLE airports;

service/migrations/000000_create_airports/up.sql

@@ -0,0 +1,16 @@
+CREATE EXTENSION IF NOT EXISTS postgis;
+CREATE TABLE IF NOT EXISTS airports (
+    icao TEXT PRIMARY KEY NOT NULL,
+    id INTEGER GENERATED ALWAYS AS IDENTITY,
+    category TEXT NOT NULL,
+    full_name TEXT NOT NULL,
+    elevation_ft INTEGER,
+    continent TEXT NOT NULL,
+    iso_country TEXT NOT NULL,
+    iso_region TEXT NOT NULL,
+    municipality TEXT NOT NULL,
+    gps_code TEXT NOT NULL,
+    iata_code TEXT NOT NULL,
+    local_code TEXT NOT NULL,
+    point GEOMETRY(POINT,4326) NOT NULL
+);

service/migrations/000001_create_metars/down.sql

@@ -0,0 +1 @@
+DROP TABLE metars;

service/migrations/000001_create_metars/up.sql

@@ -0,0 +1,26 @@
+CREATE TABLE IF NOT EXISTS metars (
+    id INTEGER PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+    raw_text TEXT NOT NULL,
+    station_id TEXT NOT NULL,
+    observation_time TEXT NOT NULL,
+    latitude DOUBLE PRECISION NOT NULL,
+    longitude DOUBLE PRECISION NOT NULL,
+    temp_c DOUBLE PRECISION,
+    dewpoint_c DOUBLE PRECISION,
+    wind_dir_degrees TEXT,
+    wind_speed_kt INTEGER,
+    visibility_statute_mi TEXT,
+    altim_in_hg DOUBLE PRECISION,
+    sea_level_pressure_mb DOUBLE PRECISION,
+    qcf_auto BOOLEAN,
+    qcf_auto_station BOOLEAN,
+    wx_string TEXT,
+    sky_condition TEXT[],
+    flight_category TEXT,
+    three_hr_pressure_tendency_mb DOUBLE PRECISION,
+    metar_type TEXT NOT NULL,
+    max_t_c DOUBLE PRECISION,
+    min_t_c DOUBLE PRECISION,
+    precip_in DOUBLE PRECISION,
+    elevation_m INTEGER NOT NULL
+);

service/migrations/000002_create_users/down.sql

@@ -0,0 +1 @@
+DROP TABLE users;

service/migrations/000002_create_users/up.sql

@@ -0,0 +1,11 @@
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE TABLE IF NOT EXISTS users (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY,
+    email TEXT NOT NULL,
+    username TEXT NOT NULL,
+    password TEXT NOT NULL,
+    created_at TIMESTAMP NOT NULL,
+    first_name TEXT NOT NULL,
+    last_name TEXT NOT NULL,
+    favorites TEXT[]
+);

service/src/airports/mod.rs

@@ -0,0 +1,5 @@
+mod model;
+mod routes;
+
+pub use model::*;
+pub use routes::init_routes;

service/src/airports/model.rs

@@ -0,0 +1,108 @@
+use crate::db;
+use crate::error_handler::ServiceError;
+use crate::schema::airports;
+use diesel::prelude::*;
+// use log::trace;
+use postgis_diesel::types::*;
+use postgis_diesel::functions::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, AsChangeset, Insertable)]
+#[diesel(table_name = airports)]
+pub struct InsertAirport {
+  pub icao: String,
+  pub category: String,
+  pub full_name: String,
+  pub elevation_ft: Option<i32>,
+  pub continent: String,
+  pub iso_country: String,
+  pub iso_region: String,
+  pub municipality: String,
+  pub gps_code: String,
+  pub iata_code: String,
+  pub local_code: String,
+  pub point: Point
+}
+
+#[derive(Serialize, Deserialize, Queryable, QueryableByName)]
+#[diesel(table_name = airports)]
+pub struct QueryAirport {
+  pub icao: String,
+  pub id: i32,
+  pub category: String,
+  pub full_name: String,
+  pub elevation_ft: Option<i32>,
+  pub continent: String,
+  pub iso_country: String,
+  pub iso_region: String,
+  pub municipality: String,
+  pub gps_code: String,
+  pub iata_code: String,
+  pub local_code: String,
+  pub point: Point
+}
+
+impl QueryAirport {
+  pub fn get_all(bounds: Option<Polygon<Point>>, category: Option<String>, filter: Option<String>, limit: Option<i32>, page: Option<i32>) -> Result<Vec<Self>, ServiceError> {
+    let mut conn = db::connection()?;
+    let limit = match limit {
+      Some(l) => l,
+      None => 100
+    };
+    let page = match page {
+      Some(p) => p,
+      None => 1
+    };
+    let mut query = airports::table
+      .limit(limit as i64)
+      .into_boxed();
+    query = query.filter(airports::id.gt(std::cmp::max(1, page - 1) * limit));
+
+    if let Some(bounds) = bounds {
+      query = query.filter(st_contains(bounds, airports::point));
+    }
+    if let Some(category) = category {
+      query = query.filter(airports::category.eq(category));
+    }
+    if let Some(filter) = filter {
+      query = query.filter(airports::icao
+        .ilike(format!("%{}%", filter))
+        .or(airports::full_name.ilike(format!("%{}%", filter)))
+      )
+    }
+    // let debug = diesel::debug_query::<diesel::pg::Pg, _>(&query);
+    // trace!("{}", debug);
+    let airports: Vec<QueryAirport> = query.order(airports::category.asc()).load::<QueryAirport>(&mut conn)?;
+    Ok(airports)
+  }
+
+  pub fn find(icao: String) -> Result<Self, ServiceError> {
+    let mut conn = db::connection()?;
+    let airport = airports::table.filter(airports::icao.eq(icao)).first(&mut conn)?;
+    Ok(airport)
+}
+
+pub fn create(airport: InsertAirport) -> Result<Self, ServiceError> {
+    let mut conn = db::connection()?;
+    let airport = InsertAirport::from(airport);
+    let airport = diesel::insert_into(airports::table)
+        .values(airport)
+        .get_result(&mut conn)?;
+    Ok(airport)
+}
+
+pub fn update(id: i32, airport: InsertAirport) -> Result<Self, ServiceError> {
+    let mut conn = db::connection()?;
+    let airport = diesel::update(airports::table)
+        .filter(airports::id.eq(id))
+        .set(airport)
+        .get_result(&mut conn)?;
+    Ok(airport)
+}
+
+pub fn delete(id: i32) -> Result<usize, ServiceError> {
+    let mut conn = db::connection()?;
+    let res = diesel::delete(airports::table.filter(airports::id.eq(id))).execute(&mut conn)?;
+    Ok(res)
+}
+}

service/src/airports/routes.rs

@@ -0,0 +1,157 @@
+use crate::{airports::{InsertAirport, QueryAirport}, db::{self, Metadata}};
+use actix_web::{delete, get, post, put, web, HttpResponse, HttpRequest};
+use log::{error, warn};
+use postgis_diesel::types::{Polygon, Point};
+use serde::{Serialize, Deserialize};
+
+#[derive(Debug, Serialize, Deserialize)]
+struct GetAllParameters {
+  filter: Option<String>,
+  bounds: Option<String>,
+  category: Option<String>,
+  limit: Option<i32>,
+  page: Option<i32>
+}
+
+#[get("/import")]
+async fn import() -> HttpResponse {
+  db::import_data();
+  HttpResponse::Ok().body({})
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct AirportsResponse {
+    pub data: Vec<QueryAirport>,
+    pub meta: Metadata
+}
+
+#[get("/airports")]
+async fn get_all(req: HttpRequest) -> HttpResponse {
+  let params = web::Query::<GetAllParameters>::from_query(req.query_string()).unwrap();
+  let polygon: Option<Polygon<Point>> = match &params.bounds {
+    Some(b) => {
+      let bounds: Vec<&str> = b.split(",").collect();
+      if bounds.len() != 4 {
+        warn!("Expected 4 bounds, received {}: {}", bounds.len(), b);
+        return HttpResponse::UnprocessableEntity().body(format!("Received {}; expected NE_LAT,NE_LON,SW_LAT,SW_LON", b))
+      }
+      let ne_lat = match bounds[0].parse::<f64>() {
+        Ok(b) => b,
+        Err(err) => {
+          warn!("{}", err);
+          return HttpResponse::UnprocessableEntity().body(format!("{}", err))
+        }
+      };
+      let ne_lon = match bounds[1].parse::<f64>() {
+        Ok(b) => b,
+        Err(err) => {
+          warn!("{}", err);
+          return HttpResponse::UnprocessableEntity().body(format!("{}", err))
+        }
+      };
+      let sw_lat = match bounds[2].parse::<f64>() {
+        Ok(b) => b,
+        Err(err) => {
+          warn!("{}", err);
+          return HttpResponse::UnprocessableEntity().body(format!("{}", err))
+        }
+      };
+      let sw_lon = match bounds[3].parse::<f64>() {
+        Ok(b) => b,
+        Err(err) => {
+          warn!("{}", err);
+          return HttpResponse::UnprocessableEntity().body(format!("{}", err))
+        }
+      };
+      let mut polygon: Polygon<Point> = Polygon::new(Some(4326));
+      polygon.add_point(Point { x: sw_lon, y: sw_lat, srid: Some(4326) });
+      polygon.add_point(Point { x: ne_lon, y: sw_lat, srid: Some(4326) });
+      polygon.add_point(Point { x: ne_lon, y: ne_lat, srid: Some(4326) });
+      polygon.add_point(Point { x: sw_lon, y: ne_lat, srid: Some(4326) });
+      polygon.add_point(Point { x: sw_lon, y: sw_lat, srid: Some(4326) });
+      Some(polygon)
+    },
+    None => None
+  };
+  let category = match &params.category {
+    Some(c) => Some(c.to_string()),
+    None => None
+  };
+  let filter = match &params.filter {
+    Some(f) => Some(f.to_string()),
+    None => None
+  };
+
+  match web::block(move || QueryAirport::get_all(polygon, category, filter, params.limit, params.page)).await.unwrap() {
+    Ok(a) => HttpResponse::Ok().json(AirportsResponse {
+      data: a,
+      meta: Metadata { page: 0, limit: 0, pages: 0, total: 0 }
+    }),
+    Err(err) => {
+      error!("{}", err);
+      err.to_http_response()
+    }
+  }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct AirportResponse {
+    pub data: QueryAirport,
+    pub meta: Metadata
+}
+
+#[get("/airports/{icao}")]
+async fn get(icao: web::Path<String>) -> HttpResponse {
+  match QueryAirport::find(icao.into_inner()) {
+    Ok(a) => HttpResponse::Ok().json(AirportResponse {
+      data: a,
+      meta: Metadata { page: 0, limit: 0, pages: 0, total: 0 }
+    }),
+    Err(err) => {
+      error!("{}", err);
+      err.to_http_response()
+    }
+  }
+}
+
+#[post("/airports")]
+async fn create(airport: web::Json<InsertAirport>) -> HttpResponse {
+  match QueryAirport::create(airport.into_inner()) {
+    Ok(a) => HttpResponse::Created().json(a),
+    Err(err) => {
+      error!("{}", err);
+      err.to_http_response()
+    }
+  }
+}
+
+#[put("/airports/{icao}")]
+async fn update(icao: web::Path<i32>, airport: web::Json<InsertAirport>) -> HttpResponse {
+  match QueryAirport::update(icao.into_inner(), airport.into_inner()) {
+    Ok(a) => HttpResponse::Ok().json(a),
+    Err(err) => {
+      error!("{}", err);
+      err.to_http_response()
+    }
+  }
+}
+
+#[delete("/airports/{icao}")]
+async fn delete(icao: web::Path<i32>) -> HttpResponse {
+  match QueryAirport::delete(icao.into_inner()) {
+    Ok(_) => HttpResponse::NoContent().finish(),
+    Err(err) => {
+      error!("{}", err);
+      err.to_http_response()
+    }
+  }
+}
+
+pub fn init_routes(config: &mut web::ServiceConfig) {
+  config.service(get_all);
+  config.service(get);
+  config.service(create);
+  config.service(update);
+  config.service(delete);
+  config.service(import);
+}

service/src/db.rs

@@ -0,0 +1,68 @@
+use crate::{error_handler::ServiceError, airports::{InsertAirport, QueryAirport}};
+use diesel::{r2d2::ConnectionManager, PgConnection};
+use serde::{Deserialize, Serialize};
+use crate::diesel_migrations::MigrationHarness;
+use lazy_static::lazy_static;
+use log::{error, debug, info};
+use r2d2;
+use std::env;
+
+type Pool = r2d2::Pool<ConnectionManager<PgConnection>>;
+pub type DbConnection = r2d2::PooledConnection<ConnectionManager<PgConnection>>;
+
+pub const MIGRATIONS: diesel_migrations::EmbeddedMigrations = embed_migrations!();
+
+lazy_static! {
+  static ref POOL: Pool = {
+    let username = env::var("DATABASE_USER").expect("Database username is not set");
+    let password = env::var("DATABASE_PASSWORD").expect("Database password is not set");
+    let host = env::var("DATABASE_HOST").expect("Database host is not set");
+    let name = env::var("DATABASE_NAME").expect("Database name is not set");
+    let port = env::var("DATABASE_PORT").expect("Database port is not set");
+    let url = format!("postgres://{}:{}@{}:{}/{}", username, password, host, port, name);
+    let manager = ConnectionManager::<PgConnection>::new(url);
+    Pool::builder().test_on_check_out(true).build(manager).expect("Failed to create db pool")
+  };
+}
+
+pub fn init() {
+  lazy_static::initialize(&POOL);
+  let mut pool: DbConnection = connection().expect("Failed to get db connection");
+  match pool.run_pending_migrations(MIGRATIONS) {
+    Ok(_) => info!("Database initialized"),
+    Err(err) => error!("Failed to initialize database; {}", err)
+  };
+}
+
+pub fn connection() -> Result<DbConnection, ServiceError> {
+  POOL.get()
+    .map_err(|e| ServiceError::new(500, format!("Failed getting db connection: {}", e)))
+}
+
+pub fn import_data() {
+  let path = "airport-codes.json";
+  debug!("Importing data from {}", path);
+  let contents: String = std::fs::read_to_string(path).expect("Failed to read file");
+  let airports: Vec<InsertAirport> = serde_json::from_str(&contents).expect("JSON was not well formed.");
+  for airport in airports {
+    match QueryAirport::create(airport) {
+      Ok(_) => {},
+      Err(err) => error!("Error inserting airport; {}", err)
+    };
+  }
+  debug!("Import complete");
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct Metadata {
+  pub page: i32,
+  pub limit: i32,
+  pub pages: i32,
+  pub total: i32,
+}
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub struct Coordinate {
+  pub lon: f64,
+  pub lat: f64
+}

service/src/error_handler.rs

@@ -0,0 +1,67 @@
+use actix_web::http::StatusCode;
+use actix_web::{HttpResponse, ResponseError};
+use diesel::result::Error as DieselError;
+use log::warn;
+use serde::{Deserialize, Serialize};
+use serde_json::json;
+use std::fmt;
+
+#[derive(Debug, Deserialize, Serialize)]
+pub struct ServiceError {
+    pub error_status_code: u16,
+    pub error_message: String,
+}
+
+impl ServiceError {
+    pub fn new(error_status_code: u16, error_message: String) -> ServiceError {
+        ServiceError {
+            error_status_code,
+            error_message,
+        }
+    }
+
+    pub fn to_http_response(&self) -> HttpResponse {
+        let status_code = match StatusCode::from_u16(self.error_status_code) {
+            Ok(s) => s,
+            Err(err) => {
+                warn!("{}", err);
+                StatusCode::INTERNAL_SERVER_ERROR
+            }
+        };
+        HttpResponse::build(status_code).body(self.error_message.to_string())
+    }
+}
+
+impl fmt::Display for ServiceError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.write_str(self.error_message.as_str())
+    }
+}
+
+impl From<DieselError> for ServiceError {
+    fn from(error: DieselError) -> ServiceError {
+        match error {
+            DieselError::DatabaseError(_, err) => ServiceError::new(409, err.message().to_string()),
+            DieselError::NotFound => {
+                ServiceError::new(404, "The record was not found".to_string())
+            }
+            err => ServiceError::new(500, format!("Unknown Diesel error: {}", err)),
+        }
+    }
+}
+
+impl ResponseError for ServiceError {
+    fn error_response(&self) -> HttpResponse {
+        let status_code = match StatusCode::from_u16(self.error_status_code) {
+            Ok(status_code) => status_code,
+            Err(_) => StatusCode::INTERNAL_SERVER_ERROR,
+        };
+
+        let error_message = match status_code.as_u16() < 500 {
+            true => self.error_message.clone(),
+            false => "Internal server error".to_string(),
+        };
+
+        HttpResponse::build(status_code).json(json!({ "message": error_message }))
+    }
+}

service/src/main.rs

@@ -0,0 +1,54 @@
+extern crate actix_web;
+extern crate diesel;
+#[macro_use]
+extern crate diesel_migrations;
+
+use actix_cors::Cors;
+use actix_web::{App, HttpServer, middleware::Logger};
+use dotenv::dotenv;
+use env_logger::Env;
+use listenfd::ListenFd;
+use log::debug;
+
+mod airports;
+mod auth;
+mod db;
+mod error_handler;
+mod metars;
+mod users;
+mod schema;
+
+#[actix_rt::main]
+async fn main() -> std::io::Result<()> {
+    dotenv().ok();
+    if std::env::var_os("RUST_LOG").is_none() {
+        std::env::set_var("RUST_LOG", "info,actix=info,diesel_migrations=warn,reqwest=warn,hyper=warn");
+    }
+    env_logger::init_from_env(Env::default().default_filter_or("info"));
+    db::init();
+
+    let mut listenfd = ListenFd::from_env();
+    let mut server = HttpServer::new(|| {
+        let cors = Cors::default()
+            .allow_any_origin()
+            .allow_any_method()
+            .allow_any_header();
+        App::new()
+        .configure(airports::init_routes)
+        .configure(metars::init_routes)
+        .configure(users::init_routes)
+        .wrap(cors)
+        .wrap(Logger::default())
+    });
+
+    server = match listenfd.take_tcp_listener(0)? {
+        Some(listener) => server.listen(listener)?,
+        None => {
+            let host = std::env::var("SERVICE_HOST").expect("Please set host in .env");
+            let port = std::env::var("SERVICE_PORT").expect("Please set port in .env");
+            debug!("Binding server to {}:{}", host, port);
+            server.bind(format!("{}:{}", host, port))?
+        }
+    };
+    server.run().await
+}

service/src/metars/mod.rs

@@ -0,0 +1,5 @@
+mod model;
+mod routes;
+
+pub use model::*;
+pub use routes::init_routes;

service/src/metars/model.rs

@@ -0,0 +1,382 @@
+use crate::{error_handler::ServiceError, db};
+use crate::schema::metars::{self};
+use diesel::{prelude::*, sql_query};
+use log::{warn, trace};
+use std::collections::HashSet;
+use std::io::BufRead;
+use quick_xml::{Reader, events::{Event, BytesStart}, Writer, de::Deserializer};
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct QualityControlFlags {
+    pub auto: Option<bool>,
+    pub auto_station: Option<bool>
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct SkyCondition {
+    #[serde(rename = "@sky_cover")]
+    pub sky_cover: String,
+    #[serde(rename = "@cloud_base_ft_agl")]
+    pub cloud_base_ft_agl: Option<i32>
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct Metar {
+    pub raw_text: String,
+    pub station_id: String,
+    pub observation_time: String,
+    pub latitude: f64,
+    pub longitude: f64,
+    pub temp_c: Option<f64>,
+    pub dewpoint_c: Option<f64>,
+    pub wind_dir_degrees: Option<String>,
+    pub wind_speed_kt: Option<i32>,
+    pub visibility_statute_mi: Option<String>,
+    pub altim_in_hg: Option<f64>,
+    pub sea_level_pressure_mb: Option<f64>,
+    pub quality_control_flags: Option<QualityControlFlags>,
+    pub wx_string: Option<String>,
+    pub sky_condition: Option<Vec<SkyCondition>>,
+    pub flight_category: String,
+    pub three_hr_pressure_tendency_mb: Option<f64>,
+    pub metar_type: String,
+    #[serde(rename = "maxT_c")]
+    pub max_t_c: Option<f64>,
+    #[serde(rename = "minT_c")]
+    pub min_t_c: Option<f64>,
+    pub precip_in: Option<f64>,
+    pub elevation_m: i32
+}
+
+impl Metar {
+    fn parse(input: String) -> Result<Vec<Self>, ServiceError> {
+        if input.is_empty() {
+            return Err(ServiceError::new(500, "Input is empty".to_string()))
+        }
+
+        let mut reader = Reader::from_str(&input);
+        let mut buf = Vec::new();
+        let mut junk_buf: Vec<u8> = Vec::new();
+        let mut metars: Vec<Self> = vec![];
+
+        loop {
+            match reader.read_event_into(&mut buf) {
+                Err(e) => panic!("Error at position: {}: {:?}", reader.buffer_position(), e),
+                Ok(Event::Eof) => break,
+                Ok(Event::Start(e)) => {
+                    match e.name().as_ref() {
+                        b"METAR" => {
+                            let metar_bytes = Self::read_to_end_into_buffer(&mut reader, &e, &mut junk_buf).unwrap();
+                            let str = std::str::from_utf8(&metar_bytes).unwrap();
+                            let mut deserializer = Deserializer::from_str(str);
+                            match Self::deserialize(&mut deserializer) {
+                                Ok(m) => metars.push(m),
+                                Err(err) => warn!("Error deserializing; {}", err)
+                            };
+                        },
+                        _ => ()
+                    }
+                },
+                _ => ()
+            }
+        }
+
+        return Ok(metars)
+    }
+
+    // https://capnfabs.net/posts/parsing-huge-xml-quickxml-rust-serde/
+    fn read_to_end_into_buffer<R: BufRead>(reader: &mut Reader<R>, start_tag: &BytesStart, junk_buf: &mut Vec<u8>) -> Result<Vec<u8>, quick_xml::Error> {
+        let mut depth = 0;
+        let mut output_buf: Vec<u8> = Vec::new();
+        let mut w = Writer::new(&mut output_buf);
+        let tag_name = start_tag.name();
+        w.write_event(Event::Start(start_tag.clone()))?;
+        loop {
+            junk_buf.clear();
+            let event = reader.read_event_into(junk_buf)?;
+            w.write_event(&event)?;
+      
+            match event {
+                Event::Start(e) if e.name() == tag_name => depth += 1,
+                Event::End(e) if e.name() == tag_name => {
+                    if depth == 0 {
+                        return Ok(output_buf);
+                    }
+                    depth -= 1;
+                }
+                Event::Eof => {
+                    panic!("EOF")
+                }
+                _ => {}
+            }
+        }
+    }
+
+    fn get_missing_metar_icaos(db_metars: &Vec<Self>, station_icaos: &Vec<&str>) -> Vec<String> {
+        let mut missing_metar_icaos: Vec<String> = vec![];
+        let current_time = chrono::Local::now().naive_local().timestamp();
+        let db_metars_set: HashSet<&str> = db_metars.iter().map(|icao| icao.station_id.as_str()).collect();
+        let station_icaos_set: HashSet<&str> = station_icaos.to_owned().into_iter().collect();
+        for difference in db_metars_set.symmetric_difference(&station_icaos_set) {
+            missing_metar_icaos.push(difference.to_string());
+        }
+        for metar in db_metars {
+            match chrono::NaiveDateTime::parse_and_remainder(&metar.observation_time, "%Y-%m-%dT%H:%M:%S") {
+                Ok((time, _)) => {
+                    if current_time > (time.timestamp() + 3600) {
+                        trace!("{} METAR data is outdated", metar.station_id);
+                        missing_metar_icaos.push(metar.station_id.to_string());
+                    }
+                },
+                Err(err) => {
+                    warn!("Parsing METAR timestamp failed; {}", err);
+                    missing_metar_icaos.push(metar.station_id.to_string());
+                }
+            };
+        }
+        return missing_metar_icaos;
+    }
+
+    async fn get_remote_metars(icaos: String) -> Vec<Metar> {
+        let url = format!("https://beta.aviationweather.gov/cgi-bin/data/metar.php?ids={}&format=xml", icaos);
+        match reqwest::get(url).await {
+            Ok(r) => match r.text().await {
+                Ok(r) => {
+                    match Metar::parse(r) {
+                        Ok(m) => m,
+                        Err(err) => {
+                            warn!("{}", err);
+                            vec![]
+                        }
+                    }
+                },
+                Err(err) => {
+                    warn!("Unable to parse METAR request: {}", err);
+                    vec![]
+                }
+            },
+            Err(err) => {
+                warn!("Unable to get METAR request: {}", err);
+                vec![]
+            }
+        }
+    }
+
+    fn from_query(query_metars: Vec<QueryMetar>) -> Vec<Self> {
+        let mut metars: Vec<Metar> = vec![];
+        for metar in query_metars {
+            let quality_control_flags = Some(QualityControlFlags {
+                auto: metar.qcf_auto,
+                auto_station: metar.qcf_auto_station
+            });
+            let sky_condition = match metar.sky_condition {
+                Some(s) => {
+                    let mut sc: Vec<SkyCondition> = vec![];
+                    for string in s {
+                        let split: Vec<&str> = string.split_whitespace().collect();
+                        if split.len() == 1 {
+                            sc.push(SkyCondition { sky_cover: split[0].to_string(), cloud_base_ft_agl: None })
+                        } else if split.len() == 2 {
+                            let cloud_base = split[1].parse::<i32>().unwrap();
+                            sc.push(SkyCondition { sky_cover: split[0].to_string(), cloud_base_ft_agl: Some(cloud_base) })
+                        }
+                    }
+                    Some(sc)
+                },
+                None => None
+            };
+            metars.push(Metar {
+                raw_text: metar.raw_text,
+                station_id: metar.station_id,
+                observation_time: metar.observation_time,
+                latitude: metar.latitude,
+                longitude: metar.longitude,
+                temp_c: metar.temp_c,
+                dewpoint_c: metar.dewpoint_c,
+                wind_dir_degrees: metar.wind_dir_degrees,
+                wind_speed_kt: metar.wind_speed_kt,
+                visibility_statute_mi: metar.visibility_statute_mi,
+                altim_in_hg: metar.altim_in_hg,
+                sea_level_pressure_mb: metar.sea_level_pressure_mb,
+                quality_control_flags,
+                wx_string: metar.wx_string,
+                sky_condition,
+                flight_category: metar.flight_category,
+                three_hr_pressure_tendency_mb: metar.three_hr_pressure_tendency_mb,
+                metar_type: metar.metar_type,
+                max_t_c: metar.max_t_c,
+                min_t_c: metar.min_t_c,
+                precip_in: metar.precip_in,
+                elevation_m: metar.elevation_m
+            })
+        }
+        return metars;
+    }
+
+    fn to_insert(metars: &Vec<Self>) -> Vec<InsertMetar> {
+        let mut insert_metars: Vec<InsertMetar> = vec![];
+        for metar in metars {
+            insert_metars.push(InsertMetar {
+                raw_text: metar.raw_text.to_string(),
+                station_id: metar.station_id.to_string(),
+                observation_time: metar.observation_time.to_string(),
+                latitude: metar.latitude,
+                longitude: metar.longitude,
+                temp_c: metar.temp_c,
+                dewpoint_c: metar.dewpoint_c,
+                wind_dir_degrees: match &metar.wind_dir_degrees {
+                    Some(m) => Some(m.to_string()),
+                    None => None
+                },
+                wind_speed_kt: metar.wind_speed_kt,
+                visibility_statute_mi: match &metar.visibility_statute_mi {
+                    Some(m) => Some(m.to_string()),
+                    None => None
+                },
+                altim_in_hg: metar.altim_in_hg,
+                sea_level_pressure_mb: metar.sea_level_pressure_mb,
+                qcf_auto: match &metar.quality_control_flags {
+                    Some(m) => m.auto,
+                    None => None
+                },
+                qcf_auto_station: match &metar.quality_control_flags {
+                    Some(m) => m.auto_station,
+                    None => None
+                },
+                wx_string: match &metar.wx_string {
+                    Some(m) => Some(m.to_string()),
+                    None => None
+                },
+                sky_condition: match &metar.sky_condition {
+                    Some(s) => {
+                        let mut sc: Vec<String> = vec![];
+                        for condition in s {
+                            if let Some(cloud_base) = condition.cloud_base_ft_agl {
+                                sc.push(format!("{} {}", condition.sky_cover, cloud_base));
+                            } else {
+                                sc.push(format!("{}", condition.sky_cover));
+                            }
+                        }
+                        Some(sc)
+                    },
+                    None => None
+                },
+                flight_category: metar.flight_category.to_string(),
+                three_hr_pressure_tendency_mb: metar.three_hr_pressure_tendency_mb,
+                metar_type: metar.metar_type.to_string(),
+                max_t_c: metar.max_t_c,
+                min_t_c: metar.min_t_c,
+                precip_in: metar.precip_in,
+                elevation_m: metar.elevation_m
+            });
+        }
+        return insert_metars;
+    }
+
+    pub async fn get_all(icaos: String) -> Result<Vec<Self>, ServiceError> {
+        if icaos.is_empty() {
+            return Ok(vec![]);
+        }
+
+        let station_icaos: Vec<&str> = icaos.split(',').collect();
+        let mut db_metars = match QueryMetar::get_all(&station_icaos) {
+            Ok(m) => Self::from_query(m),
+            Err(err) => return Err(err)
+        };
+
+        let missing_icaos = Self::get_missing_metar_icaos(&db_metars, &station_icaos);
+        if missing_icaos.is_empty() {
+            return Ok(db_metars);
+        }
+        trace!("Retrieving missing METAR data for {:?}", missing_icaos);
+        let missing_icaos_string: Vec<String> = missing_icaos.iter().map(|icao| format!("'{}'", icao.to_string())).collect();
+        let mut missing_metars = Self::get_remote_metars(missing_icaos_string.join(",")).await;
+        if missing_metars.len() > 0 {
+            let insert_metars = Self::to_insert(&missing_metars);
+            let mut conn = db::connection()?;
+            match diesel::insert_into(metars::table).values(&insert_metars).execute(&mut conn) {
+                Ok(rows) => trace!("Inserted {} metar rows", rows),
+                Err(err) => warn!("Unable to insert metar data; {}", err)
+            };
+        }
+        let mut metars: Vec<Metar> = vec![];
+        metars.append(&mut missing_metars);
+        metars.append(&mut db_metars);
+        Ok(metars)
+    }
+}
+
+#[derive(Serialize, Deserialize, AsChangeset, Insertable)]
+#[diesel(table_name = metars)]
+struct InsertMetar {
+    raw_text: String,
+    station_id: String,
+    observation_time: String,
+    latitude: f64,
+    longitude: f64,
+    temp_c: Option<f64>,
+    dewpoint_c: Option<f64>,
+    wind_dir_degrees: Option<String>,
+    wind_speed_kt: Option<i32>,
+    visibility_statute_mi: Option<String>,
+    altim_in_hg: Option<f64>,
+    sea_level_pressure_mb: Option<f64>,
+    qcf_auto: Option<bool>,
+    qcf_auto_station: Option<bool>,
+    wx_string: Option<String>,
+    sky_condition: Option<Vec<String>>,
+    flight_category: String,
+    three_hr_pressure_tendency_mb: Option<f64>,
+    metar_type: String,
+    #[serde(rename = "maxT_c")]
+    max_t_c: Option<f64>,
+    #[serde(rename = "minT_c")]
+    min_t_c: Option<f64>,
+    precip_in: Option<f64>,
+    elevation_m: i32
+}
+
+#[derive(Serialize, Deserialize, Queryable, QueryableByName)]
+#[diesel(table_name = metars)]
+struct QueryMetar {
+    id: i32,
+    raw_text: String,
+    station_id: String,
+    observation_time: String,
+    latitude: f64,
+    longitude: f64,
+    temp_c: Option<f64>,
+    dewpoint_c: Option<f64>,
+    wind_dir_degrees: Option<String>,
+    wind_speed_kt: Option<i32>,
+    visibility_statute_mi: Option<String>,
+    altim_in_hg: Option<f64>,
+    sea_level_pressure_mb: Option<f64>,
+    qcf_auto: Option<bool>,
+    qcf_auto_station: Option<bool>, 
+    wx_string: Option<String>,
+    sky_condition: Option<Vec<String>>,
+    flight_category: String,
+    three_hr_pressure_tendency_mb: Option<f64>,
+    metar_type: String,
+    #[serde(rename = "maxT_c")]
+    max_t_c: Option<f64>,
+    #[serde(rename = "minT_c")]
+    min_t_c: Option<f64>,
+    precip_in: Option<f64>,
+    elevation_m: i32
+}
+
+impl QueryMetar {
+    fn get_all(icaos: &Vec<&str>) -> Result<Vec<QueryMetar>, ServiceError> {
+        let station_query: Vec<String> = icaos.iter().map(|icao| format!("'{}'", icao.to_string())).collect();
+        
+        let mut conn = db::connection()?;
+        let db_metars: Vec<Self> = match sql_query(format!("SELECT DISTINCT ON (station_id) * FROM metars WHERE station_id IN ({}) ORDER BY station_id, observation_time DESC", station_query.join(","))).load(&mut conn) {
+            Ok(m) => m,
+            Err(err) => return Err(ServiceError { error_status_code: 500, error_message: format!("{}", err) })
+        };
+        return Ok(db_metars);
+    }
+}

service/src/metars/routes.rs

@@ -0,0 +1,34 @@
+use crate::{error_handler::ServiceError, db::Metadata};
+use crate::metars::Metar;
+use actix_web::{get, web, HttpResponse};
+use log::error;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct MetarsResponse {
+    pub data: Vec<Metar>,
+    pub meta: Metadata
+}
+
+#[get("metars/{ids}")]
+async fn get_all(ids: web::Path<String>) -> HttpResponse {
+    let airports = match web::block(|| Ok::<_, ServiceError>(async {Metar::get_all(ids.into_inner()).await}))
+        .await
+        .unwrap()
+        .unwrap()
+        .await {
+            Ok(a) => a,
+            Err(err) => {
+                error!("{}", err);
+                return err.to_http_response();
+            }
+        };
+    HttpResponse::Ok().json(MetarsResponse {
+        data: airports,
+        meta: Metadata { page: 0, limit: 0, pages: 0, total: 0 }
+    })
+}
+
+pub fn init_routes(config: &mut web::ServiceConfig) {
+    config.service(get_all);
+}

service/src/schema.rs

@@ -0,0 +1,60 @@
+diesel::table! {
+  use diesel::sql_types::*;
+  use postgis_diesel::sql_types::*;
+  airports (icao) {
+    icao -> Text,
+    id -> Integer,
+    category -> Text,
+    full_name -> Text,
+    elevation_ft -> Nullable<Integer>,
+    continent -> Text,
+    iso_country -> Text,
+    iso_region -> Text,
+    municipality -> Text,
+    gps_code -> Text,
+    iata_code -> Text,
+    local_code -> Text,
+    point -> Geometry,
+  }
+}
+
+diesel::table! {
+  metars (id) {
+    id -> Integer,
+    raw_text -> Text,
+    station_id -> Text,
+    observation_time -> Text,
+    latitude -> Double,
+    longitude -> Double,
+    temp_c -> Nullable<Double>,
+    dewpoint_c -> Nullable<Double>,
+    wind_dir_degrees -> Nullable<Text>,
+    wind_speed_kt -> Nullable<Integer>,
+    visibility_statute_mi -> Nullable<Text>,
+    altim_in_hg -> Nullable<Double>,
+    sea_level_pressure_mb -> Nullable<Double>,
+    qcf_auto -> Nullable<Bool>,
+    qcf_auto_station -> Nullable<Bool>,
+    wx_string -> Nullable<Text>,
+    sky_condition -> Nullable<Array<Text>>,
+    flight_category -> Text,
+    three_hr_pressure_tendency_mb -> Nullable<Double>,
+    metar_type -> Text,
+    max_t_c -> Nullable<Double>,
+    min_t_c -> Nullable<Double>,
+    precip_in -> Nullable<Double>,
+    elevation_m -> Integer,
+  }
+}
+
+diesel::table! {
+  use diesel::sql_types::*;
+  use crate::users::PgUserType;
+  users (id) {
+    id -> Uuid,
+    first_name -> Text,
+    last_name -> Text,
+    user_type -> PgUserType,
+    favorites -> Array<Text>
+  }
+}

service/src/users/mod.rs

@@ -0,0 +1,7 @@
+mod model;
+mod routes;
+mod user_type;
+
+pub use user_type::PgUserType;
+pub use model::*;
+pub use routes::init_routes;

service/src/users/model.rs

@@ -0,0 +1,50 @@
+use std::{future::Future, pin::Pin, sync::RwLock};
+
+use actix_web::{dev::Payload, error::ErrorUnauthorized, web, Error, FromRequest, HttpRequest};
+use actix_identity::Identity;
+use diesel::{query_builder::AsChangeset, prelude::Insertable};
+use log::warn;
+use crate::schema::users;
+use serde::{Serialize, Deserialize};
+
+use super::user_type::UserType;
+
+#[derive(Serialize, Deserialize, AsChangeset, Insertable)]
+#[diesel(table_name = users)]
+pub struct InsertUser {
+  first_name: String,
+  last_name: String,
+  user_type: UserType,
+  favorites: Vec<String>
+}
+
+// impl FromRequest for InsertUser {
+//   type Config = ();
+//   type Error = Error;
+//   type Future = Pin<Box<dyn Future<Output = Result<Self, Error>>>>;
+
+//   fn from_request(req: &HttpRequest, pl: &mut Payload) -> Self::Future {
+//       let fut = Identity::from_request(req, pl);
+//       let sessions: Option<&web::Data<RwLock<Sessions>>> = req.app_data();
+//       if sessions.is_none() {
+//           warn!("sessions is empty(none)!");
+//           return Box::pin(async { Err(ErrorUnauthorized("unauthorized")) });
+//       }
+//       let sessions = sessions.unwrap().clone();
+//       Box::pin(async move {
+//           if let Some(identity) = fut.await?.identity() {
+//               if let Some(user) = sessions
+//                   .read()
+//                   .unwrap()
+//                   .map
+//                   .get(&identity)
+//                   .map(|x| x.clone())
+//               {
+//                   return Ok(user);
+//               }
+//           };
+
+//           Err(ErrorUnauthorized("unauthorized"))
+//       })
+//   }
+// }

service/src/users/routes.rs

@@ -0,0 +1,51 @@
+use actix_web::{get, post, delete, put, web, HttpResponse};
+
+#[get("users")]
+async fn get() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[get("users/{id}")]
+async fn get_all() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[post("users")]
+async fn create() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[delete("users")]
+async fn delete() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[put("users")]
+async fn update() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[get("users/favorites")]
+async fn get_favorites() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[post("users/favorites")]
+async fn add_favorite() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+#[delete("users/favorites")]
+async fn delete_favorite() -> HttpResponse {
+  HttpResponse::NotImplemented().finish()
+}
+
+pub fn init_routes(config: &mut web::ServiceConfig) {
+  config.service(get);
+  config.service(create);
+  config.service(delete);
+  config.service(update);
+  config.service(get_favorites);
+  config.service(add_favorite);
+  config.service(delete_favorite);
+}

service/src/users/user_type.rs

@@ -0,0 +1,35 @@
+use std::io::Write;
+
+use diesel::{sql_types::SqlType, deserialize::{FromSqlRow, FromSql, self}, expression::AsExpression, serialize::{ToSql, Output, self, IsNull}, pg::{Pg, PgValue}};
+use serde::{Serialize, Deserialize};
+
+#[derive(SqlType)]
+#[diesel(postgres_type(name = "User_Type"))]
+pub struct PgUserType;
+
+#[derive(Serialize, Deserialize, Debug, PartialEq, FromSqlRow, AsExpression, Eq)]
+#[diesel(sql_type = PgUserType)]
+pub enum UserType {
+    Admin,
+    User,
+}
+
+impl ToSql<PgUserType, Pg> for UserType {
+    fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> serialize::Result {
+        match *self {
+          Self::Admin => out.write_all(b"admin")?,
+          Self::User => out.write_all(b"user")?,
+        }
+        Ok(IsNull::No)
+    }
+}
+
+impl FromSql<PgUserType, Pg> for UserType {
+    fn from_sql(bytes: PgValue<'_>) -> deserialize::Result<Self> {
+        match bytes.as_bytes() {
+            b"admin" => Ok(Self::Admin),
+            b"user" => Ok(Self::User),
+            _ => Err("Unrecognized enum variant".into()),
+        }
+    }
+}