init project

src/local_db.ts

@@ -0,0 +1,52 @@
+// import { sqlite3, open } from 'sqlite3';
+var sqlite3 = require("sqlite3").verbose();
+import { Response } from './eip_processor';
+
+
+
+// db handler
+export async function get_db(db_path: any) {
+    var db_path = db_path;
+
+    if (db_path === null) {
+        db_path = ':memory';
+    }
+
+    let db = new sqlite3.Database(db_path, (err: any) => {
+        if (err) {
+            return console.error("failure to get sqlite: ", err.message);
+        }
+    });
+    return db;
+
+}
+
+export async function crate_table(db: any) {
+    const stmt = `create table if not exists snapshot.db (
+        snapshot_id: integer primary key,
+        event_address: text,
+        event_signature: text,
+        eip712_doc text,
+        peer_id: text,
+        timestamp: integer;
+        eip_validation: boolean;
+        ts_validation: boolean;
+        signed_response text
+    )`;
+
+    db.run(stmt);
+}
+
+export async function insert_event(db: any, eip_obj: any, response_obj: Response, signed_msg: string) {
+    const stmt = `insert into snapshot.db (
+        values (?,?,?,?,?,?,?,?,?)
+    )`;
+    const values = [eip_obj.data.message.snapshot, eip_obj.address, eip_obj.sig, JSON.stringify(eip_obj.data), response_obj.peer_id, response_obj.timestamp, response_obj.eip_validation, response_obj.ts_validation, signed_msg];
+    db.run(stmt, values, function (err: any) {
+        if (err) {
+            return console.log(err.message);
+        }
+        // console.log(`A row has been inserted with row id: ${this.lastID}`);
+        // console.log(`A row has been inserted with row id: ${db.}`);
+    });
+}