115 lines
2.9 KiB
Rust
115 lines
2.9 KiB
Rust
use common::ron_api;
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use gloo::net::http::{Request, RequestBuilder};
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use serde::{de::DeserializeOwned, Serialize};
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use thiserror::Error;
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use crate::toast::{self, Level};
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#[derive(Error, Debug)]
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pub enum Error {
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#[error("Gloo error: {0}")]
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Gloo(#[from] gloo::net::Error),
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#[error("RON Spanned error: {0}")]
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Ron(#[from] ron::error::SpannedError),
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#[error("HTTP error: {0}")]
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Http(String),
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#[error("Unknown error: {0}")]
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Other(String),
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}
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type Result<T> = std::result::Result<T, Error>;
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const CONTENT_TYPE: &str = "Content-Type";
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const CONTENT_TYPE_RON: &str = "application/ron";
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async fn req_with_body<T, U>(
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api_name: &str,
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body: U,
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method_fn: fn(&str) -> RequestBuilder,
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) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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let url = format!("/ron-api/{}", api_name);
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let request_builder = method_fn(&url).header(CONTENT_TYPE, CONTENT_TYPE_RON);
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send_req(request_builder.body(ron_api::to_string(body))?).await
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}
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async fn req_with_params<T, U>(
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api_name: &str,
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params: U,
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method_fn: fn(&str) -> RequestBuilder,
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) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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let mut url = format!("/ron-api/{}?", api_name);
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serde_html_form::ser::push_to_string(&mut url, params).unwrap();
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let request_builder = method_fn(&url).header(CONTENT_TYPE, CONTENT_TYPE_RON);
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send_req(request_builder.build()?).await
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}
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async fn send_req<T>(request: Request) -> Result<T>
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where
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T: DeserializeOwned,
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{
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match request.send().await {
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Err(error) => {
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toast::show_message(Level::Info, &format!("Internal server error: {}", error));
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Err(Error::Gloo(error))
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}
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Ok(response) => {
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if !response.ok() {
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toast::show_message(
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Level::Info,
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&format!("HTTP error: {}", response.status_text()),
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);
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Err(Error::Http(response.status_text()))
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} else {
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let mut r = response.binary().await?;
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// An empty response is considered to be an unit value.
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if r.is_empty() {
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r = b"()".to_vec();
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}
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Ok(ron::de::from_bytes::<T>(&r)?)
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}
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}
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}
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}
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pub async fn put<T, U>(api_name: &str, body: U) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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req_with_body(api_name, body, Request::put).await
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}
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pub async fn post<T, U>(api_name: &str, body: U) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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req_with_body(api_name, body, Request::post).await
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}
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pub async fn delete<T, U>(api_name: &str, body: U) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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req_with_body(api_name, body, Request::delete).await
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}
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pub async fn get<T, U>(api_name: &str, params: U) -> Result<T>
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where
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T: DeserializeOwned,
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U: Serialize,
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{
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req_with_params(api_name, params, Request::get).await
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}
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