50 lines
1.2 KiB
Rust
50 lines
1.2 KiB
Rust
use serde::{Serialize, Deserialize};
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use std::collections::HashMap;
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use anyhow::{Result, anyhow};
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#[derive(Serialize, Deserialize, Debug)]
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pub struct ServiceEntry {
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pub Tags: Vec<String>
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}
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#[derive(Serialize, Deserialize, Debug)]
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pub struct CatalogNode {
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pub Services: HashMap<String, ServiceEntry>
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}
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pub struct Consul {
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client: reqwest::Client,
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url: String,
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idx: Option<u64>
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}
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impl Consul {
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pub fn new(url: &str) -> Self {
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return Self {
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client: reqwest::Client::new(),
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url: url.to_string(),
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idx: None
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};
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}
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pub fn watch_node_reset(&mut self) -> () {
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self.idx = None;
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}
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pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
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let url = match self.idx {
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Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i),
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None => format!("{}/v1/catalog/node/{}", self.url, host)
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};
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let http = self.client.get(&url).send().await?;
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self.idx = match http.headers().get("X-Consul-Index") {
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Some(v) => Some(v.to_str()?.parse::<u64>()?),
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None => return Err(anyhow!("X-Consul-Index header not found"))
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};
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let resp: CatalogNode = http.json().await?;
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return Ok(resp)
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}
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}
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