How can I incr/decr a value?

How can I increase a value by one in one step? Seems that updateById can not do this. Can I do that by using queryBuider? Thanks.

[pleerock]

you simply load an object, increase its property and save object, e.g.

const post = await repository.findOneById(1);
post.counter++;
await repository.save(post);

[pleerock]

alternatively you can use QueryBuilder to run update query:

        await connection.createQueryBuilder()
            .update(User)
            .set({ counter: () => "counter + 1" })
            .execute();

See example here.

Or you can simply run sql query using connection.query method.