91 lines
2.8 KiB
Rust
91 lines
2.8 KiB
Rust
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#[allow(dead_code)]
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#[cfg(test)]
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#[path = "./rest_api_test.rs"]
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mod rest_api_test;
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use serde::{Deserialize, Serialize};
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use tide;
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use tide::prelude::json;
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// struct PinConfiguration {
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// channel: usize,
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// gpio: usize,
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// }
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#[derive(Serialize, Deserialize, Debug)]
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pub struct PulseInfo {
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timestamp_ns: u64,
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pin_id: usize,
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level: bool,
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}
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#[derive(Clone)]
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pub struct RestApiConfig {
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pub ip_and_port: String,
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pub get_channels: fn() -> Vec<usize>,
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pub get_pulses_by_channel: fn(channel: usize) -> Result<Vec<PulseInfo>, std::io::Error>,
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}
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pub async fn start<'a>(config: &'a RestApiConfig) -> std::io::Result<()> {
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let mut app = tide::with_state(config.clone());
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app.at("/api_versions").get(api_versions_get);
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app.at("/v1/channels").get(v1_channels_get);
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app.at("/v1/channel/:channel_id/pulses")
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.get(v1_channel_pulses_get);
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let ip_and_port = String::from(&config.ip_and_port);
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match app.listen(ip_and_port).await {
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Ok(_) => Ok(()),
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Err(e) => Err(e),
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}
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}
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async fn api_versions_get(_: tide::Request<RestApiConfig>) -> tide::Result {
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#[derive(Serialize)]
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struct ApiVersionInfo {
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version: String,
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path: String,
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}
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let mut version_list = Vec::<ApiVersionInfo>::new();
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version_list.push(ApiVersionInfo {
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version: String::from("1.0"),
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path: String::from("v1"),
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});
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Ok(tide::Response::builder(200)
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.content_type(tide::http::mime::JSON)
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.body(json!({ "api_versions": &version_list }))
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.build())
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}
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async fn v1_channels_get(req: tide::Request<RestApiConfig>) -> tide::Result {
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let channel_list = &(req.state().get_channels)();
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Ok(tide::Response::builder(200)
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.content_type(tide::http::mime::JSON)
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.body(json!({ "channels": channel_list }))
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.build())
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}
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async fn v1_channel_pulses_get(req: tide::Request<RestApiConfig>) -> tide::Result {
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match req.param("channel_id") {
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Ok(channel_id) => match usize::from_str_radix(channel_id, 10) {
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Ok(channel_id) => {
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let info = &req.state().ip_and_port;
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let channel_pulses_res = &(req.state().get_pulses_by_channel)(channel_id);
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match channel_pulses_res {
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Ok(channel_pulses) => Ok(tide::Response::builder(200)
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.content_type(tide::http::mime::JSON)
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.body(json!({
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"channel": channel_id,
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"pulses": channel_pulses,
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"question": "channel",
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"info": info,
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}))
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.build()),
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Err(_) => Ok(tide::Response::new(404)),
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}
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}
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Err(_) => Ok(tide::Response::new(405)),
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},
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Err(_e) => Ok(tide::Response::new(404)),
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}
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}
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