Initial cut of rust-db-play

Testing out some thing on how Rust handles deserialization from db
rows into JSON.

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Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "rust-db-play"
+version = "0.1.0"
+authors = ["Jonathan M. Altman <jonathan@async.io>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+r2d2 = "0.8.5"
+r2d2_sqlite = "0.12.0"
+rusqlite = "0.20.0"
+time = "0.1.42"
+serde = "1.0.101"
+serde_json = "1.0"
+serde_rusqlite = "0.22.0"

src/main.rs

@@ -0,0 +1,40 @@
+extern crate r2d2;
+extern crate r2d2_sqlite;
+extern crate rusqlite;
+
+use r2d2_sqlite::SqliteConnectionManager;
+use rusqlite::params;
+use serde_json::{Map, Value};
+use serde_rusqlite::*;
+
+fn main() -> Result<()> {
+    let manager = SqliteConnectionManager::memory(); //file(":memory:");
+    let pool = r2d2::Pool::new(manager).unwrap();
+    let conn = pool.get().unwrap();
+
+    conn.execute(
+        "CREATE TABLE person (
+                  id              INTEGER PRIMARY KEY,
+                  name            TEXT NOT NULL,
+                  time_created    TEXT NOT NULL,
+                  data            BLOB
+                  )",
+        params![],
+    )?;
+
+    conn.execute(
+        "INSERT INTO person (name, time_created, data)
+                  VALUES (?1, ?2, ?3)",
+        params!["Steven".to_string(), time::get_time(), None as Option<Vec<u8>>],
+    )?;
+
+    let mut stmt = conn.prepare("SELECT id, name, time_created, data FROM person")?;
+    let perjson_iter = stmt.query_map(params![], |row| {
+        Ok(from_row::<Map<String,Value>>(row).unwrap())
+    })?;
+
+    for perjson in perjson_iter {
+        println!("Found person {:?}", serde_json::to_string(&perjson.unwrap()).unwrap());
+    }
+    Ok(())
+}