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+ "phf_codegen",
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+ "regex",
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+ "serde_json",
+ "url 1.7.2",
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+ "winapi-x86_64-pc-windows-gnu",
+]
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+ "winapi 0.3.9",
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+
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+ "winapi 0.2.8",
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+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..eb082b5
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "rust-playground"
+version = "0.1.0"
+authors = ["Andrew Guschin <saintruler@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+valico = "2"
+serde_json = "1.0.64"
+serde = { version = "1.0.125", features = ["derive"] }
+actix-web = "3"
+diesel = { version = "1.4.4", features = ["sqlite"] }
+dotenv = "0.15.0"
+
diff --git a/diesel.toml b/diesel.toml
new file mode 100644
index 0000000..92267c8
--- /dev/null
+++ b/diesel.toml
@@ -0,0 +1,5 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"
diff --git a/migrations/.gitkeep b/migrations/.gitkeep
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/migrations/.gitkeep
diff --git a/migrations/2021-04-18-102936_create_posts/down.sql b/migrations/2021-04-18-102936_create_posts/down.sql
new file mode 100644
index 0000000..a8c711c
--- /dev/null
+++ b/migrations/2021-04-18-102936_create_posts/down.sql
@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+DROP TABLE posts
diff --git a/migrations/2021-04-18-102936_create_posts/up.sql b/migrations/2021-04-18-102936_create_posts/up.sql
new file mode 100644
index 0000000..ac26995
--- /dev/null
+++ b/migrations/2021-04-18-102936_create_posts/up.sql
@@ -0,0 +1,7 @@
+-- Your SQL goes here
+CREATE TABLE posts (
+  id INTEGER PRIMARY KEY NOT NULL,
+  title VARCHAR NOT NULL,
+  body TEXT NOT NULL,
+  published BOOLEAN NOT NULL DEFAULT 'f'
+)
diff --git a/req.py b/req.py
new file mode 100644
index 0000000..d995123
--- /dev/null
+++ b/req.py
@@ -0,0 +1,14 @@
+import requests as req
+from pprint import pprint
+
+r = req.get("http://localhost:8080/api/posts")
+pprint(r.json())
+
+data = {"id": 7, "title": "Some article", "body": "hey", "published": True}
+r = req.post("http://localhost:8080/api/posts/add", json=data)
+pprint(r.json())
+
+data = {"id": 8, "title": "Some article", "body": "hey"}
+r = req.post("http://localhost:8080/api/posts/add", json=data)
+pprint(r.json())
+
diff --git a/schemas/post.json b/schemas/post.json
new file mode 100644
index 0000000..f427dd7
--- /dev/null
+++ b/schemas/post.json
@@ -0,0 +1,10 @@
+{
+    "type": "object",
+    "properties": {
+        "id": { "type": "integer" },
+        "title": { "type": "string" },
+        "body": { "type": "string" },
+        "published": { "type": "boolean" }
+    },
+    "required": ["id", "title", "body", "published"]
+}
diff --git a/schemas/profile.json b/schemas/profile.json
new file mode 100644
index 0000000..ff7b087
--- /dev/null
+++ b/schemas/profile.json
@@ -0,0 +1,11 @@
+{
+    "type": "object",
+    "properties": {
+        "tg_id": { "type": "integer" },
+        "fullname": { "type": "string" },
+        "username": { "type": "string" },
+        "is_admin": { "type": "boolean" },
+        "is_hidden": { "type": "boolean" }
+    },
+    "required": ["tg_id", "fullname", "username", "is_admin", "is_hidden"]
+}
diff --git a/src/db.rs b/src/db.rs
new file mode 100644
index 0000000..142aee5
--- /dev/null
+++ b/src/db.rs
@@ -0,0 +1,20 @@
+use diesel::prelude::*;
+use diesel::sqlite::SqliteConnection;
+use dotenv::dotenv;
+use std::env;
+use crate::models::Post;
+
+pub fn establish_connection() -> SqliteConnection {
+    dotenv().ok();
+
+    let database_url = env::var("DATABASE_URL")
+        .expect("DATABASE_URL must be set");
+    SqliteConnection::establish(&database_url)
+        .expect(&format!("Error connecting to {}", database_url))
+}
+
+pub fn create_post<'a>(conn: &SqliteConnection, post: &Post) -> Result<usize, diesel::result::Error> {
+    use crate::schema::posts;
+    // TODO(andrew): add error checking
+    return diesel::insert_into(posts::table).values(post).execute(conn);
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e0e65a3
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,24 @@
+#[macro_use]
+extern crate diesel;
+extern crate dotenv;
+
+mod views;
+mod models;
+mod schema;
+mod db;
+mod validator;
+
+use actix_web::{App, HttpServer};
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .service(views::hello)
+            .service(views::echo)
+            .service(views::get_posts)
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+    .await
+}
diff --git a/src/models.rs b/src/models.rs
new file mode 100644
index 0000000..d025cf0
--- /dev/null
+++ b/src/models.rs
@@ -0,0 +1,17 @@
+use serde::{Serialize, Deserialize};
+use diesel::Queryable;
+use crate::schema::posts;
+
+#[derive(Queryable, Insertable, Serialize, Deserialize)]
+#[table_name="posts"]
+pub struct Post {
+    pub id: i32,
+    pub title: String,
+    pub body: String,
+    pub published: bool
+}
+
+#[derive(Serialize)]
+pub struct PostResponse<'a> {
+    pub msg: &'a str
+}
diff --git a/src/schema.rs b/src/schema.rs
new file mode 100644
index 0000000..d4dc4f4
--- /dev/null
+++ b/src/schema.rs
@@ -0,0 +1,8 @@
+table! {
+    posts (id) {
+        id -> Integer,
+        title -> Text,
+        body -> Text,
+        published -> Bool,
+    }
+}
diff --git a/src/val.rs b/src/val.rs
new file mode 100644
index 0000000..6cc7dfe
--- /dev/null
+++ b/src/val.rs
@@ -0,0 +1,37 @@
+mod validator;
+
+use serde::{Serialize, Deserialize};
+use serde_json;
+
+use validator::Validator;
+
+#[derive(Deserialize, Serialize)]
+struct Profile {
+    tg_id: i32,
+    fullname: String,
+    username: String,
+    is_admin: bool,
+    is_hidden: bool
+}
+
+
+fn test_validation() -> Result<(), String> {
+    let profile = Profile {
+        tg_id: 123,
+        fullname: String::from("Andrew Guschin"),
+        username: String::from("guschin"),
+        is_admin: true,
+        is_hidden: false
+    };
+
+    let request_data = serde_json::to_string(&profile).unwrap();
+
+    let validator = match Validator::from_file("src/schema.json") {
+        Ok(val) => val,
+        Err(msg) => return Err(msg)
+    };
+    let result = validator.check(&request_data);
+    println!("Is valid: {}", result);
+
+    return Ok(());
+}
diff --git a/src/validator.rs b/src/validator.rs
new file mode 100644
index 0000000..1fa52bc
--- /dev/null
+++ b/src/validator.rs
@@ -0,0 +1,51 @@
+extern crate serde;
+extern crate serde_json;
+extern crate valico;
+
+use std::fs::File;
+use std::io::BufReader;
+use std::io::Read;
+
+use serde_json::from_str;
+use valico::json_schema;
+
+pub struct Validator {
+    schema_content: String
+}
+
+impl Validator {
+    pub fn from_file(schema_path: &'static str) -> Result<Validator, String> {
+        let file = match File::open(schema_path) {
+            Ok(file) => file,
+            Err(_) => return Err(String::from("Could not open file"))
+        };
+        let mut buf_reader = BufReader::new(file);
+        let mut content = String::new();
+        match buf_reader.read_to_string(&mut content) {
+            Ok(_) => (),
+            Err(_) => return Err(String::from("Could not read from file"))
+        };
+        return Validator::from_string(content);
+    }
+    
+    pub fn from_string(schema: String) -> Result<Validator, String> {
+        let s = match from_str(&schema) {
+            Ok(schema) => schema,
+            Err(_) => return Err(String::from("Could not parse schema"))
+        };
+        let mut scope = json_schema::Scope::new();
+        match scope.compile_and_return(s, true) {
+            Ok(_) => (),
+            Err(_) => return Err(String::from("Could not compile schema"))
+        };
+        return Ok(Validator { schema_content: schema });
+    }
+
+    pub fn check(&self, content: &str) -> bool {
+        let obj = from_str(content).unwrap();
+        let mut scope = json_schema::Scope::new();
+        let schema = from_str(&self.schema_content).unwrap();
+        let schema = scope.compile_and_return(schema, true).ok().unwrap();
+        return schema.validate(&obj).is_valid();
+    }
+}
diff --git a/src/views.rs b/src/views.rs
new file mode 100644
index 0000000..3622719
--- /dev/null
+++ b/src/views.rs
@@ -0,0 +1,45 @@
+use actix_web::{get, post, HttpResponse, Responder};
+use diesel::prelude::*;
+use crate::models::{Post, PostResponse};
+use crate::validator::Validator;
+use crate::db;
+use serde_json;
+
+#[get("/")]
+pub async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[post("/api/posts/add")]
+pub async fn echo(req_body: String) -> impl Responder {
+    let validator = Validator::from_file("schemas/post.json").unwrap();
+    let result = validator.check(&req_body);
+    
+    if !result {
+        return HttpResponse::BadRequest().json(PostResponse { 
+            msg: "Message doesn't conform to schema" 
+        });
+    }
+    
+    let conn = db::establish_connection();
+    let new_post: Post = serde_json::from_str(&req_body).unwrap();
+    let result = db::create_post(&conn, &new_post);
+    return match result {
+        Ok(_) => HttpResponse::Ok().json(new_post),
+        Err(res) => HttpResponse::InternalServerError().json(PostResponse {
+            msg: &res.to_string()
+        })
+    };
+}
+
+#[get("/api/posts")]
+pub async fn get_posts() -> impl Responder {
+    use crate::schema::posts::dsl::*;
+    let connection = db::establish_connection();
+    let results = posts.filter(published.eq(true))
+        .limit(5)
+        .load::<Post>(&connection)
+        .expect("Error loading posts");
+    HttpResponse::Ok().json(&results)
+}
+