Gareth Bale, together with other members of the Wales squad will make a concerted effect to persuade Chris Coleman to remain as national team coach in spite of the team's failure to qualify for next year's World Cup finals in Russian Federation.
Needing a win to grab second place in the group, the home side took control, wasting two great chances around the half-hour mark, with Taras Stepanenko driving a powerful shot outside the post and Yevhen Konoplyanka heading just wide moments later.
Ireland go through to next month's play-offs and are now two games away from appearing in their first World Cup since 2002. However, with Wales also needed the points to boost their hopes of making it to Russian Federation next year, it is victor takes all.
"We had to withstand a lot of pressure, which you would expect".
The only goal of the game came 12 minutes into the second half. We have come through.
'It's a shame for us, a hard one, but we've got no complaints, ' Coleman said. The game is on Sky Go in the United Kingdom and Ireland.
He was one of six Ireland players booked during the clash with Wales alongside goalkeeper Darren Randolph, defender Ciaran Clark, midfielder David Meyler, striker Daryl Murphy and goalscorer James McClean.
Having got to ten points after the win against Austria four games into Group D, Ireland collected just three more points in the following four matches.
Wales skipper Ashley Williams lost possession on the edge of his penalty area and Jeff Hendrick crossed for McClean to slam home his fourth goal of the campaign.
Harry Arter has saluted his Ireland team-mates for getting it right on the night once again to preserve their World Cup dream.
"I said a while ago there: Bring them on. There have been times when we have been questioned but the hunger is there, you see that in the performances".
Now, Ireland will be unseeded for the draw which will determine the play-off pairings and as a result, could face hard opposition like Italy.
The news comes as a serious blow for the Republic, who must beat Wales in Monday night's Group D clash, live on Sky Sports, in order to reach the play-offs for the finals in Russian Federation.