fix(datasource-sql): add proxy configuration when computing ssl (#740)

packages/datasource-sql/src/connection/connection-options.ts

@@ -79,6 +79,17 @@ export default class ConnectionOptions {
     return this.uri?.pathname?.slice(1) || this.sequelizeOptions.database;
   }
 
+  private get plainConnectionOptions(): PlainConnectionOptions {
+    const options = { ...this.sequelizeOptions } as PlainConnectionOptions;
+
+    if (this.uri) options.uri = this.uri.toString();
+    if (this.proxyOptions) options.proxySocks = this.proxyOptions;
+    options.dialect = this.dialect;
+    options.sslMode = this.sslMode;
+
+    return options;
+  }
+
   constructor(options: PlainConnectionOptionsOrUri, logger?: Logger) {
     this.logger = logger;
 
@@ -115,11 +126,7 @@ export default class ConnectionOptions {
   }
 
   async buildPreprocessedOptions(): Promise<PlainConnectionOptions> {
-    const options = { ...this.sequelizeOptions } as PlainConnectionOptions;
-
-    if (this.uri) options.uri = this.uri.toString();
-    if (this.proxyOptions) options.proxySocks = this.proxyOptions;
-    options.dialect = this.dialect;
+    const options = this.plainConnectionOptions;
     options.sslMode = await this.computeSslMode();
 
     return options;
@@ -244,11 +251,7 @@ export default class ConnectionOptions {
       try {
         // eslint-disable-next-line no-await-in-loop
         sequelize = await connect(
-          new ConnectionOptions({
-            uri: this.uri?.toString(),
-            sslMode,
-            ...this.sequelizeOptions,
-          }),
+          new ConnectionOptions({ ...this.plainConnectionOptions, sslMode }),
         );
 
         return sslMode;