Getting a stream of events from github.
parent
b7111994cd
commit
e8c4fb16ff
@ -0,0 +1,79 @@
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use reqwest::header::HeaderValue;
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use std::time::{SystemTime, UNIX_EPOCH};
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use tokio::time::{sleep, Duration};
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pub struct GithubEndpointWatcher {
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username: String,
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token: String,
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url: String,
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http_client: reqwest::Client,
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etag: Option<HeaderValue>,
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next_poll_allowed: u64,
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}
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impl GithubEndpointWatcher {
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pub fn new(
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username: String,
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token: String,
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url: String,
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) -> Result<Self, Box<dyn std::error::Error>> {
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let http_client = reqwest::Client::new();
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Ok(GithubEndpointWatcher {
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username,
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token,
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url,
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http_client,
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etag: None,
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next_poll_allowed: 0,
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})
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}
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pub async fn get_results(&mut self) -> Result<serde_json::Value, Box<dyn std::error::Error>> {
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let mut request = self
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.http_client
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.get(&self.url)
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.basic_auth(self.username.trim(), Some(self.token.trim()))
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.header("User-Agent", "github_watcher")
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.header("Accept", "application/vnd.github.v3+json");
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if let Some(etag) = &self.etag {
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request = request.header(reqwest::header::ETAG, etag);
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}
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self.sleep_until_next_poll().await?;
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let request_started_at = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
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println!("Hitting url {}", self.url);
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let response = request.send().await?;
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let headers = response.headers();
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let etag = headers.get(reqwest::header::ETAG).map(|x| x.to_owned());
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let poll_interval = headers.get("x-poll-interval").map(|x| x.to_owned());
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// let ratelimit_limit = headers.get("x-ratelimit-limit").map(|x| x.to_owned());
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// let ratelimit_remaining = headers.get("x-ratelimit-remaining").map(|x| x.to_owned());
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// let ratelimit_reset = headers.get("x-ratelimit-reset").map(|x| x.to_owned());
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// let ratelimit_used = headers.get("x-ratelimit-used").map(|x| x.to_owned());
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// let ratelimit_resource = headers.get("x-ratelimit-resource").map(|x| x.to_owned());
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let body = response.json::<serde_json::Value>().await?;
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println!("{}", serde_json::to_string(&body)?);
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self.etag = etag;
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let poll_interval_parsed: u64 = match poll_interval {
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Some(header) => header.to_str()?.parse()?,
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None => {
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println!("No poll interval returned, defaulting to 5 minute polling.");
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300
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}
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};
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self.next_poll_allowed = request_started_at + poll_interval_parsed;
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Ok(body)
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}
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async fn sleep_until_next_poll(&self) -> Result<(), Box<dyn std::error::Error>> {
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loop {
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let now = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
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if now >= self.next_poll_allowed {
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break;
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}
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sleep(Duration::from_secs(self.next_poll_allowed - now)).await;
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}
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Ok(())
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}
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}
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@ -1,3 +1,4 @@
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mod github_endpoint_watcher;
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mod githubctl;
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pub use githubctl::GithubCtl;
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