Golang发出并发请求和合并响应

I have written go code to call multiple http request independently and combine the results.

Sometime values are missing on combined method.

func profile(req *http.Request)  (UserMe, error, UserRating, error) {

    wgcall := &sync.WaitGroup{}

    uChan := make(chan ResUser)
    rChan := make(chan ResRating)

        // variable inits
    var meResp UserMe
    var ratingResp UserRating

    go func() {
        res := <-uChan
                meResp = res.Value
    }()

    go func() {
        res := <-rChan
                ratingResp = res.Value
    }()

    wgcall.Add(2)
    go me(req, wgcall, uChan)
    go rate(req, wgcall, rChan)

    wgcall.Wait()

    logrus.Info(meResp)  // sometimes missing
    logrus.Info(ratingResp) // sometimes missing

    return meResp, meErr, ratingResp, ratingErr
}

But the me and rating calls returns the values from api requests as expected.

func me(req *http.Request, wg *sync.WaitGroup, ch chan ResUser) {
    defer wg.Done()

    // http call return value correclty
    me := ...
    ch <- ResUser{
        Value := // value from rest
    }
    logrus.Info(fmt.Sprintf("User calls  %v" , me))  // always return the values
    close(ch)
}

func rate(req *http.Request, wg *sync.WaitGroup, ch chan ResRating) {
    defer wg.Done()

        // make http call
    rating := ...
    ch <- ResRating{
        Value := // value from rest
    }
    logrus.Info(fmt.Sprintf("Ratings calls %v" , rating)) // always return the values

    close(ch)
}

Issue is: meResp and ratingResp on profile function not getting the values always. sometime only meResp or ratingResp, sometimes both as expected.

But me and rate function calls getting values always.

Can help me fix this plz ?