需要类型[]*structpb.Value(GCP Golang客户端库；aiPlatform)

在多次try 使用客户端库和参考文档之后，.Predict()方法[作用于指向PredictionClient类型的指针]不允许您指定顶点AI模型端点的模式.因此，解决方案是通过.RawPredict()方法发送请求，这样，只有在Golang GCP客户机库实现的模式与部署的模型匹配时，才能发出序列化的JSON(Structpb)请求.以下是PredictionClient的GCP文档:

https://cloud.google.com/go/docs/reference/cloud.google.com/go/aiplatform/1.0.0/apiv1#cloud_google_com_go_aiplatform_apiv1_PredictionClient个

以下是形成和使用RawPredict()方法所需的库:

import (
    "context"
    "fmt"
    "log"
    "reflect"
    "strconv"

    aiplatform "cloud.google.com/go/aiplatform/apiv1"
    "cloud.google.com/go/aiplatform/apiv1/aiplatformpb"
    "google.golang.org/api/option"
    "google.golang.org/genproto/googleapis/api/httpbody"
)

代码是这样的:

// Get the form values from the web applicaiton
    income, _ := strconv.Atoi(r.FormValue("MonthlyIncome")) 
    age, _ := strconv.Atoi(r.FormValue("Age"))
    passport, _ := strconv.Atoi(r.FormValue("Passport"))


//create our struct from the form values

    Details = Submission{
        MonthlyIncome:                 income,
        Age:                           age,
        Passport:                      passport,
    }

    v := reflect.ValueOf(Details)
    body = ""


    for i := 0; i < v.NumField(); i++ {

        body = body + fmt.Sprintf("%v", v.Field(i).Interface()) + ","

    }

    if last := len(body) - 1; last >= 0 && body[last] == ',' {
        body = body[:last]
    }

    Requestb = pre + body + post
    log.Println("The request string was:", Requestb)

// structure the body of the raw request
    Raw := &httpbody.HttpBody{}
    Raw.Data = []byte(Requestb)

// indentify the post request using the raw body and the endpoint
    reqs := &aiplatformpb.RawPredictRequest{
// Note  GCP Project ID, Region, and endpoint ID
        Endpoint: "projects/<PROJECT-HERE>/locations/<REGDION-HERE>/endpoints/<ENDPOINT-ID-HERE>",
        HttpBody: Raw,
    }


// CTX gets the credentials of the application service account - NOTE THE REGION
    Ctx := context.Background()
    C, err := aiplatform.NewPredictionClient(Ctx, option.WithEndpoint("<REGION-HERE>-aiplatform.googleapis.com:443"))

    if err != nil {
        log.Println("Error 1, connectrion:", err)
    }
    defer C.Close()

// gets the response using the credentials of the application service account
    resp, err := C.RawPredict(Ctx, reqs)
    if err != nil {
        log.Fatalf("Error 2, response: %v", err)
    }
    log.Println(resp)


    RespString := fmt.Sprintf("%+v", resp)
    log.Println("The Response String was:", resp)