Add message response

packages/server/src/integrations/index.ts

@@ -122,7 +122,7 @@ export async function getIntegration(integration: SourceName) {
 }
 
 const VALIDATORS: Partial<
-  Record<SourceName, (config: any) => Promise<boolean>>
+  Record<SourceName, (config: any) => Promise<boolean | { error: string }>>
 > = {
   [SourceName.POSTGRES]: postgres.validateConnection,
 }

packages/server/src/integrations/postgres.ts

@@ -335,8 +335,8 @@ async function validateConnection(config: PostgresConfig) {
   try {
     await integration.openConnection()
     return true
-  } catch {
-    return false
+  } catch (e: any) {
+    return { error: e.message as string }
   } finally {
     await integration.closeConnection()
   }

packages/server/src/sdk/tests/datasources/validators.spec.ts

@@ -37,22 +37,20 @@ describe("datasource validators", () => {
     })
 
     it("test invalid connection string", async () => {
-      try {
-        const result = await validator({
-          host,
-          port,
-          database: "postgres",
-          user: "wrong",
-          password: "password",
-          schema: "public",
-          ssl: false,
-          rejectUnauthorized: false,
-          ca: false,
-        })
-        expect(result).toBeFalsy()
-      } catch (e) {
-        console.error(e)
-      }
+      const result = await validator({
+        host,
+        port,
+        database: "postgres",
+        user: "wrong",
+        password: "password",
+        schema: "public",
+        ssl: false,
+        rejectUnauthorized: false,
+        ca: false,
+      })
+      expect(result).toEqual({
+        error: 'password authentication failed for user "wrong"',
+      })
     })
   })
 })