54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
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use wasm_bindgen::prelude::*;
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pub struct Response {
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pub url: String,
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pub ok: bool,
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pub status: u16,
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pub status_text: String,
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pub body: String,
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}
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/// NOTE: Ok(..) is returned on network error.
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/// Err is only for failure to use the fetch api.
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pub async fn get_text(url: &str) -> Result<Response, String> {
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get_text_jsvalue(url)
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.await
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.map_err(|err| err.as_string().unwrap_or_default())
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}
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/// NOTE: Ok(..) is returned on network error.
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/// Err is only for failure to use the fetch api.
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async fn get_text_jsvalue(url: &str) -> Result<Response, JsValue> {
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// https://rustwasm.github.io/wasm-bindgen/examples/fetch.html
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use wasm_bindgen::JsCast;
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use wasm_bindgen_futures::JsFuture;
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let mut opts = web_sys::RequestInit::new();
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opts.method("GET");
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opts.mode(web_sys::RequestMode::Cors);
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let request = web_sys::Request::new_with_str_and_init(&url, &opts)?;
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request.headers().set("Accept", "*/*")?;
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let window = web_sys::window().unwrap();
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let resp_value = JsFuture::from(window.fetch_with_request(&request)).await?;
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assert!(resp_value.is_instance_of::<web_sys::Response>());
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let resp: web_sys::Response = resp_value.dyn_into().unwrap();
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// TODO: headers
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// TODO: support binary get
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let body = JsFuture::from(resp.text()?).await?;
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let body = body.as_string().unwrap_or_default();
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Ok(Response {
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status_text: resp.status_text(),
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url: resp.url(),
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ok: resp.ok(),
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status: resp.status(),
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body,
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})
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}
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