'await' has no effect on the type of this expression.ts(80007)

[rastitalabani]

Context

Hello, I'm using nodejs and typescript, await doesn't to have effect on neither of await liquibase.update({}); await liquibase.status();

Node-Liquibase Version

4.1.1

Liquibase Version (if not bundled)

Description

[Description of the bug or feature]

Steps to Reproduce

use your example code with nodejs and typscript you should see a warning in vscode on the following line

await instance.status();

Expected behavior: [What you expected to happen]

without await I wont be able to control the sequence of commands execution

Actual behavior: [What actually happened]

[tabuckner]

Hey @rastitalabani, I see your expected behavior in the issue that you've opened, but I don't see what actually happens. Can you let us know what the current behavior is when using await with .update() and .status(), and what you'd expect to see happe?

Thanks! 🚀

[mikonsaari-yepzon]

Hi,

I believe I have the same issue and can provide some context.

First of all, the example in the readme contains await update, giving the impression that it is supported/required.

As for the behaviour, I want to stop the script executing until Liquibase has completed, and this is done in Typescript with async/await. We run liquibase on server start and dont serve requests until it has completed to avoid running queries that require an updated schema.

UPDATE: It seems since the update call returns the Liquibase instance, instead of the child-process Promise, await can not be used. As a workaround, I just call whatever update does manually, and it seems to work:

await (instance as any).run(LiquibaseCommands.Update, {});

[Mr-Duda]

Is the fix for this in 7b7f72bc?