Fetch basic data from lemmy.ml

Cargo.toml

@@ -5,3 +5,9 @@ authors = ["Felix Ableitner"]
 edition = "2018"
 
 [dependencies]
+reqwest = { version = "0.10.10", features = ["json"] }
+url = "2.2.1"
+serde = { version = "1.0.123", features = ["derive"] }
+anyhow = "1.0.38"
+tokio = { version = "0.2.25", features = ["full"] }
+futures = "0.3.13"

src/federated_instances.rs

@@ -0,0 +1,14 @@
+use serde::Deserialize;
+
+#[derive(Deserialize, Debug)]
+pub struct GetSiteResponse {
+  pub online: usize,
+  pub federated_instances: Option<FederatedInstances>,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct FederatedInstances {
+  pub linked: Vec<String>,
+  pub allowed: Option<Vec<String>>,
+  pub blocked: Option<Vec<String>>,
+}

src/lib.rs

@@ -0,0 +1,2 @@
+pub mod node_info;
+pub mod federated_instances;

src/main.rs

@@ -1,3 +1,18 @@
-fn main() {
-    println!("Hello, world!");
-}
+use anyhow::Error;
+use url::Url;
+use lemmy_stats_crawler::node_info::NodeInfo;
+use lemmy_stats_crawler::federated_instances::GetSiteResponse;
+
+#[tokio::main]
+pub async fn main() -> Result<(), Error> {
+    let url = Url::parse("https://lemmy.ml/nodeinfo/2.0.json")?;
+    let node_info: NodeInfo = reqwest::get(url).await?.json().await?;
+
+    dbg!(node_info);
+
+    let url = Url::parse("https://lemmy.ml/api/v2/site")?;
+    let site_info: GetSiteResponse = reqwest::get(url).await?.json().await?;
+
+    dbg!(site_info);
+    Ok(())
+}

src/node_info.rs

@@ -0,0 +1,33 @@
+use serde::Deserialize;
+
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeInfo {
+  pub version: String,
+  pub software: NodeInfoSoftware,
+  pub protocols: Vec<String>,
+  pub usage: NodeInfoUsage,
+  pub open_registrations: bool,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct NodeInfoSoftware {
+  pub name: String,
+  pub version: String,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeInfoUsage {
+  pub users: NodeInfoUsers,
+  pub local_posts: i64,
+  pub local_comments: i64,
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeInfoUsers {
+  pub total: i64,
+  pub active_halfyear: i64,
+  pub active_month: i64,
+}