From 6265ca727f13679fc4bc925367303f68865532e7 Mon Sep 17 00:00:00 2001
From: Bhavay Goel <goelbhavay@gmail.com>
Date: Thu, 27 Jun 2024 22:25:52 +0530
Subject: [PATCH] add: db.rs for inserting and querying profiles

---
 .gitignore  |   1 +
 Cargo.lock  | 939 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |   3 +
 src/db.rs   |  52 +++
 src/main.rs |   9 +-
 5 files changed, 1003 insertions(+), 1 deletion(-)
 create mode 100644 src/db.rs

diff --git a/.gitignore b/.gitignore
index d787b70..fabde54 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
 /result
+.env
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 17e8dbe..024ce3b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,945 @@
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diff --git a/Cargo.toml b/Cargo.toml
index 27c7f43..3a3f6e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,9 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+dotenv = "0.15.0"
+tokio = { version = "1.38.0", features = ["full"] }
+tokio-postgres = "0.7.10"
 
 [profile.dev]
 debug = "line-tables-only"
diff --git a/src/db.rs b/src/db.rs
new file mode 100644
index 0000000..b3c1846
--- /dev/null
+++ b/src/db.rs
@@ -0,0 +1,52 @@
+use tokio_postgres::{NoTls, Error};
+use dotenv::dotenv;
+use std::env;
+
+pub async fn insert_user(name: &str, age: i32) -> Result<(), Error> {
+    dotenv().ok();
+    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+
+    let (client, connection) = tokio_postgres::connect(&database_url, NoTls).await?;
+    tokio::spawn(async move {
+        if let Err(e) = connection.await {
+            eprintln!("connection error: {}", e);
+        }
+    });
+
+    client.execute(
+        "INSERT INTO users (name, age) VALUES ($1, $2)",
+        &[&name, &age],
+    ).await?;
+
+    Ok(())
+}
+
+pub async fn select_all_users() -> Result<(), Error> {
+    dotenv().ok();
+    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+
+    let (client, connection) = tokio_postgres::connect(&database_url, NoTls).await?;
+    tokio::spawn(async move {
+        if let Err(e) = connection.await {
+            eprintln!("connection error: {}", e);
+        }
+    });
+
+    let rows = client.query("SELECT id, name, age FROM users", &[]).await?;
+    for row in rows {
+        let id: i32 = row.get(0);
+        let name: &str = row.get(1);
+        let age: i32 = row.get(2);
+
+        println!("Found user: {} - {} ({})", id, name, age);
+    }
+
+    Ok(())
+}
+
+pub async fn run_db_operations() -> Result<(), Error> {
+    insert_user("Bhavay", 18).await?;
+    select_all_users().await?;
+
+    Ok(())
+}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..64b1ba1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,10 @@
-fn main() {
+mod db;
+
+#[tokio::main]
+async fn main() {
+    if let Err(e) = db::run_db_operations().await {
+        eprintln!("Error running db operations: {}", e);
+    }
+
     println!("Hello, world!");
 }