fix eslint-errors

src/databases/Mysql.ts

@@ -1,19 +1,20 @@
 import {Logger} from '../utils/logger';
 import {IDatabase, QueryType} from './IDatabase';
+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore
 import MysqlInterface from 'sync-mysql';
 
 export class Mysql implements IDatabase {
     private connection: any;
 
-    constructor(private config: any) {
+    constructor(private config: unknown) {
     }
 
     async init(): Promise<void> {
         this.connection = new MysqlInterface(this.config);
     }
 
-    prepare(type: QueryType, query: string, params?: any[]) {
+    prepare(type: QueryType, query: string, params?: any[]): Promise<any[]> {
         Logger.debug(`prepare (mysql): type: ${type}, query: ${query}, params: ${params}`);
         const queryResult = this.connection.query(query, params);
 

src/databases/Postgres.ts

@@ -17,7 +17,7 @@ types.setTypeParser(20, function(val) {
 export class Postgres implements IDatabase {
     private pool: Pool;
 
-    constructor(private config: any) {}
+    constructor(private config: Record<string, any>) {}
 
     async init(): Promise<void> {
         this.pool = new Pool(this.config.postgres);
@@ -43,7 +43,7 @@ export class Postgres implements IDatabase {
         }
     }
 
-    async prepare(type: QueryType, query: string, params?: any[]) {
+    async prepare(type: QueryType, query: string, params?: any[]): Promise<any[]> {
         // Convert query to use numbered parameters
         let count = 1;
         for (let char = 0; char < query.length; char++) {
@@ -64,7 +64,7 @@ export class Postgres implements IDatabase {
                 return value;
             }
             case 'all': {
-                let values = queryResult.rows;
+                const values = queryResult.rows;
                 Logger.debug(`result (postgres): ${values}`);
                 return values;
             }

src/databases/Sqlite.ts

@@ -12,7 +12,7 @@ export class Sqlite implements IDatabase {
     {
     }
 
-    async prepare(type: QueryType, query: string, params: any[] = []) {
+    async prepare(type: QueryType, query: string, params: any[] = []): Promise<any[]> {
         // Logger.debug(`prepare (sqlite): type: ${type}, query: ${query}, params: ${params}`);
         const preparedQuery = this.db.prepare(query);
 
@@ -30,7 +30,7 @@ export class Sqlite implements IDatabase {
         }
     }
 
-    async init() {
+    async init(): Promise<void> {
         // Make dirs if required
         if (!fs.existsSync(path.join(this.config.dbPath, "../"))) {
             fs.mkdirSync(path.join(this.config.dbPath, "../"));
@@ -61,7 +61,7 @@ export class Sqlite implements IDatabase {
         this.db.exec("pragma mmap_size= 500000000;");
     }
 
-    attachDatabase(database: string, attachAs: string) {
+    attachDatabase(database: string, attachAs: string): void {
         this.db.prepare(`ATTACH ? as ${attachAs}`).run(database);
     }
 
@@ -83,7 +83,7 @@ export class Sqlite implements IDatabase {
     }
 
     private static processUpgradeQuery(query: string): string {
-        let result = query.replace(/^.*--!sqlite-ignore/gm, "");
+        const result = query.replace(/^.*--!sqlite-ignore/gm, "");
 
         return result;
     }

src/databases/databases.ts

@@ -60,7 +60,7 @@ if (config.mysql) {
         enableWalCheckpointNumber: false
     });
 }
-async function initDb() {
+async function initDb(): Promise<void> {
     await db.init();
     await privateDB.init();
 
@@ -74,4 +74,4 @@ export {
     db,
     privateDB,
     initDb,
-}
+};