diff --git a/src/background/mysql.js b/src/background/mysql.js
index 750174b..d45694e 100644
--- a/src/background/mysql.js
+++ b/src/background/mysql.js
@@ -118,6 +118,60 @@ const expand = (sphinx) => {
 		})
 	})
 
+	sphinx.replaceValues = (table, values, particial = true, key = 'id', callback = () => {}) => new Promise((resolve) => {
+		values = Object.assign({}, values) // copy
+		
+		let names = '';
+		let data = '';
+		const parseValues = (values) => {
+			let valuesData = ''
+			names = ''
+			for(const val in values)
+			{
+				if(values[val] === null)
+					continue;
+
+				if(typeof values[val] == 'object')
+					values[val] = JSON.stringify(values[val])
+                
+				names += '`' + val + '`,';
+				valuesData += sphinx.escape(values[val]) + ',';
+			}
+			names = names.slice(0, -1)
+			valuesData = valuesData.slice(0, -1)
+			return valuesData
+		}
+		const finalQuery = () => {
+			let query = `REPLACE INTO ${table}(${names}) VALUES ${data}`;
+			queryCall(query, (...responce) => {
+				if(callback)
+					callback(...responce)
+				resolve(...responce)
+			})
+		}
+
+		if(particial)
+		{
+			queryCall(`SELECT * from ${table} WHERE \`${key}\` = ${sphinx.escape(values[key])}`, (err, row) => {
+				if(err || row.length == 0)
+				{
+					logTE('sql', 'error on sql replace request', row)
+					resolve(undefined)
+					callback(undefined)
+					return
+				}
+
+				data = `(${parseValues(Object.assign(row[0], values))})`
+				finalQuery()
+			})
+		}
+		else
+		{
+			data = `(${parseValues(values)})`
+			finalQuery()
+		}
+	})
+
 	return sphinx
 }
 
diff --git a/tests/sphinx.api.test.js b/tests/sphinx.api.test.js
new file mode 100644
index 0000000..5af6c7d
--- /dev/null
+++ b/tests/sphinx.api.test.js
@@ -0,0 +1,31 @@
+import { assert } from "chai";
+const {pool} = require('../src/background/mysql')
+
+describe("big table for check", () => {
+	let sphinx;
+
+	it("init", async function() {
+		sphinx = await pool()
+		assert(sphinx)
+		await sphinx.query(`delete from feed where id >= 1`)
+	})
+
+	it("replace with add", async function() {
+		await sphinx.query(`insert into feed(id, data) values(1, '{a: 1}')`)
+		assert.equal((await sphinx.query(`select data from feed where id = 1`))[0].data, '{"a":1}')
+		await sphinx.replaceValues('feed', {id: 1, data: {a: 1, b: 2}}, true)
+		assert.equal((await sphinx.query(`select data from feed`))[0].data, '{"a":1,"b":2}')
+	})
+
+	it("replace without add", async function() {
+		await sphinx.query(`insert into feed(id, data) values(2, '{a: 1}')`)
+
+		await sphinx.replaceValues('feed', {id: 1, data: {a: 1, b: 2, c: 3}}, false)
+		assert.equal((await sphinx.query(`select data from feed where id = 1`))[0].data, '{"a":1,"b":2,"c":3}')
+		assert.equal((await sphinx.query(`select count(*) as c from feed`))[0].c, 2)
+	})
+
+	it("close", async function() {
+		await sphinx.end()
+	})
+});