The 29-year-old had been preparing with the club and has dazzled manager, Jason Tindall to grant him with a contract
Wilshere had a spell with Bournemouth during the 2016/2017 Premier League season, showing up as they completed 10th.
Manager Jason Tindall, responding to the arrangement said;
“I know a great deal of the players and staff here and I’m satisfied they permitted me to prepare at first, and afterward it just went from, there.
“I’ve been dazzled by the training staff, the manner in which they work and the desire of the club to get back in the Premier League.
“We as a whole offer similar aspirations and I’m anticipating having my influence in accomplishing those.”
“He’s had his wounds for quite a while now it appears. He played well in his advance spell at Bournemouth. I figure he will work effectively for them as they hope to re-visitation of the Premier League.
“He can at present do stuff, he’s just 29, and still has a great deal to bring to the table. In the event that he remains fit, there is a top-quality player there. Best of luck to him.”
Wilshere joined West Ham from Arsenal on a three-year contract in 2018, however injuries restricted him to just 19 games in all competitions.