WIP

dbconn/src/lib.rs

@@ -0,0 +1,26 @@
+use err::Error;
+use netpod::log::*;
+use netpod::{Channel, NodeConfig};
+use std::sync::Arc;
+use tokio_postgres::NoTls;
+
+pub async fn channel_exists(channel: &Channel, node_config: Arc<NodeConfig>) -> Result<bool, Error> {
+    let d = &node_config.cluster.database;
+    let uri = format!("postgresql://{}:{}@{}:{}/{}", d.user, d.pass, d.host, 5432, d.name);
+    let (cl, conn) = tokio_postgres::connect(&uri, NoTls).await?;
+    let cjh = tokio::spawn(async move {
+        if let Err(e) = conn.await {
+            error!("connection error: {}", e);
+        }
+        Ok::<_, Error>(())
+    });
+    let rows = cl
+        .query("select rowid from channels where name = $1::text", &[&channel.name])
+        .await?;
+    info!("channel_exists  {} rows", rows.len());
+    for row in rows {
+        info!("  db on channel search: {:?}", row);
+    }
+    drop(cjh);
+    Ok(true)
+}