sqlite usage example

com/DB/Put.lua

@@ -0,0 +1,85 @@
+---@diagnostic disable: redefined-local
+local db = require("internal.database-sqlite").connect("db/test.db", {log = true})
+local log = require("internal.log")
+local session = require("internal.session")
+
+local ctx, err = db:exec([[
+  CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    email TEXT UNIQUE,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+  )
+]])
+if err ~= nil then
+  log.event_error("Failed to create table: "..tostring(err))
+  return
+end
+
+_, err = ctx:wait()
+if err ~= nil then
+  log.event_error("Table creation failed: "..tostring(err))
+  return
+end
+
+if not (session.request.params.name and session.request.params.email) then
+  session.response.error = {
+    code = -32602,
+    message = "Name and email are required"
+  }
+  return
+end
+
+local existing, err = db:query("SELECT 1 FROM users WHERE email = ? LIMIT 1", {
+  session.request.params.email
+})
+if err ~= nil then
+  session.response.error = {
+    code = -32603,
+    message = "Database check failed: "..tostring(err)
+  }
+  log.error("Email check failed: "..tostring(err))
+  return
+end
+
+if existing and #existing > 0 then
+  session.response.error = {
+    code = -32604,
+    message = "Email already exists"
+  }
+  return
+end
+
+local ctx, err = db:exec(
+  "INSERT INTO users (name, email) VALUES (?, ?)", 
+  {
+    session.request.params.name,
+    session.request.params.email
+  }
+)
+if err ~= nil then
+  session.response.error = {
+    code = -32605,
+    message = "Insert failed: "..tostring(err)
+  }
+  log.error("Insert failed: "..tostring(err))
+  return
+end
+
+local res, err = ctx:wait()
+if err ~= nil then
+  session.response.error = {
+    code = -32606,
+    message = "Insert confirmation failed: "..tostring(err)
+  }
+  log.error("Insert confirmation failed: "..tostring(err))
+  return
+end
+
+session.response.result = {
+  success = true,
+  rows_affected = res,
+  message = "User created successfully"
+}
+
+db:close()