parent
b7211a77e4
commit
015ecaff85
118
src/main.rs
118
src/main.rs
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@ -1,109 +1,13 @@
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extern crate rocket;
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use std::sync::{ atomic::AtomicUsize, atomic::Ordering, Mutex };
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use std::{ collections::HashMap };
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use juniper::{ EmptySubscription, RootNode, graphql_object, Context };
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use rocket::{ response::content, Rocket, State };
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use juniper::{ EmptySubscription };
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#[derive(Clone)]
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pub struct Person {
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id: String,
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name: String,
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}
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mod model;
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mod schema;
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impl Person {
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pub fn new(id: String, name: String) -> Person {
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Person { id, name }
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}
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fn name(&self) -> Option<&str> {
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Some(self.name.as_str())
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}
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}
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#[graphql_object(context = Database)]
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impl Person {
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fn id(&self) -> &str {
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&self.id
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}
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fn name(&self) -> Option<&str> {
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Some(self.name.as_str())
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}
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}
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#[derive(Default)]
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pub struct Database {
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people: Mutex<HashMap<String, Person>>,
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next_id: AtomicUsize,
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}
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impl Database {
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pub fn new() -> Database {
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let database = Database {
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people: Mutex::new(HashMap::new()),
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next_id: AtomicUsize::new(1),
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};
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database
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}
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pub fn get_person(&self, id: &str) -> Option<Person> {
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let people = self.people.lock().expect("Couldn't lock people");
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match people.get(id) {
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Some(person) => Some(person.to_owned()),
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None => None,
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}
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}
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pub fn add_person(&self, person: Person) {
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self.people.lock().expect("Couldn't lock people").insert(person.id.to_owned(), person);
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}
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pub fn new_id(&self) -> usize {
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self.next_id.fetch_add(1, Ordering::Relaxed)
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}
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pub fn new_person(&self, name: String) -> Option<Person> {
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let person = Person {
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id: self.new_id().to_string(),
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name,
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};
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self.people.lock().expect("lock people hashmap").insert(person.id.to_owned(), person.to_owned());
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Some(person)
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}
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}
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impl Context for Database {}
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pub struct Query;
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#[graphql_object(context = Database)]
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impl Query {
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#[graphql(arguments(id(description = "id of the human")))]
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fn human(database: &Database, id: String) -> Option<Person> {
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database.get_person(&id)
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}
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}
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struct Mutations;
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#[graphql_object(context = Database)]
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impl Mutations {
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fn addHuman(database: &Database, id: String, name: String) -> Person {
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let new_guy = Person::new(id, name);
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database.add_person(new_guy.to_owned());
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new_guy.to_owned()
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}
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fn newId(database: &Database) -> i32 {
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database.new_id() as i32
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}
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fn newPerson(database: &Database, name: String) -> Option<Person> {
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database.new_person(name)
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}
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}
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type Schema = RootNode<'static, Query, Mutations, EmptySubscription<Database>>;
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use model::Database;
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use schema::{ Schema, Query, Mutations };
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#[rocket::get("/")]
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fn graphiql() -> content::Html<String> {
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@ -138,13 +42,15 @@ fn get_rest(id: String, context: &State<Database>) -> Option<String> {
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#[rocket::main]
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async fn main() {
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let schema = Schema::new(
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Query,
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Mutations,
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EmptySubscription::<Database>::new(),
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);
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Rocket::build()
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.manage(Database::new())
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.manage(Schema::new(
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Query,
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Mutations,
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EmptySubscription::<Database>::new(),
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))
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.manage(schema)
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.mount(
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"/",
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rocket::routes![graphiql, get_graphql_handler, post_graphql_handler, get_rest],
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@ -0,0 +1,63 @@
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use std::sync::{ atomic::AtomicUsize, atomic::Ordering, Mutex };
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use std::{ collections::HashMap };
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#[derive(Clone)]
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pub struct Person {
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id: String,
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name: String,
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}
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impl Person {
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pub fn new(id: String, name: String) -> Person {
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Person { id, name }
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}
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pub fn id(&self) -> &str {
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self.id.as_str()
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}
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pub fn name(&self) -> Option<&str> {
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Some(self.name.as_str())
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}
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}
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#[derive(Default)]
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pub struct Database {
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people: Mutex<HashMap<String, Person>>,
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next_id: AtomicUsize,
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}
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impl Database {
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pub fn new() -> Database {
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let database = Database {
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people: Mutex::new(HashMap::new()),
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next_id: AtomicUsize::new(1),
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};
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database
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}
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pub fn get_person(&self, id: &str) -> Option<Person> {
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let people = self.people.lock().expect("Couldn't lock people");
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match people.get(id) {
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Some(person) => Some(person.to_owned()),
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None => None,
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}
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}
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pub fn add_person(&self, person: Person) {
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self.people.lock().expect("Couldn't lock people").insert(person.id.to_owned(), person);
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}
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pub fn new_id(&self) -> usize {
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self.next_id.fetch_add(1, Ordering::Relaxed)
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}
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pub fn new_person(&self, name: String) -> Option<Person> {
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let person = Person {
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id: self.new_id().to_string(),
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name,
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};
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self.people.lock().expect("lock people hashmap").insert(person.id.to_owned(), person.to_owned());
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Some(person)
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}
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}
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@ -0,0 +1,45 @@
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impl Context for Database {}
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use juniper::{ EmptySubscription, RootNode, graphql_object, Context };
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use crate::model::{ Database, Person };
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#[graphql_object(context = Database)]
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impl Person {
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fn id(&self) -> &str {
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self.id()
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}
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fn name(&self) -> Option<&str> {
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self.name()
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}
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}
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pub struct Query;
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#[graphql_object(context = Database)]
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impl Query {
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#[graphql(arguments(id(description = "id of the human")))]
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fn human(database: &Database, id: String) -> Option<Person> {
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database.get_person(&id)
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}
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}
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pub struct Mutations;
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#[graphql_object(context = Database)]
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impl Mutations {
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fn addHuman(database: &Database, id: String, name: String) -> Person {
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let new_guy = Person::new(id, name);
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database.add_person(new_guy.to_owned());
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new_guy.to_owned()
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}
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fn newId(database: &Database) -> i32 {
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database.new_id() as i32
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}
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fn newPerson(database: &Database, name: String) -> Option<Person> {
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database.new_person(name)
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}
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}
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pub type Schema = RootNode<'static, Query, Mutations, EmptySubscription<Database>>;
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