Hi! how to go to April Gourmet from fuwaixikou in Beijing

As I know, there are more than one branch of April Gourmet in Peking. So would you give the specific location so that I can help you further?

Oh! sorry!, the one that is near the workers stadium

You must mean the Sanlitun Branch.
From where you are, you can walk along the Fuchengmenwai Street and walk through a crossing to move on along the Sanlihe Road to Ganjiakou Nort Bus Stop, where you can take bus no. 320 or 717 to Haidian Huangzhuang Station. Then at the Haidian Huangzhuang MTR Station, you can catch subway line 10 to Agricultral Exhibition Center (Nongye Zhanlanguan) MTR Station. Getting out from Exit D2, you can walk to the April Gourmet along Dongzhimenwai Street.