Platform For AI:Call a service over a VPC direct connection

Python SDK

1. Install or upgrade the SDK.

      pip install -U eas-prediction --user

2. Call the service. The following example uses a TensorFlow request as input. For other input formats, see Using the Python SDK.

   The PredictClient constructor takes the VPC direct connection endpoint and the service name as arguments. Call set_endpoint_type(ENDPOINT_TYPE_DIRECT) to enable VPC direct connection, then call init() to initialize the client.

      #!/usr/bin/env python
      from eas_prediction import PredictClient
      from eas_prediction import StringRequest
      from eas_prediction import TFRequest
      from eas_prediction import ENDPOINT_TYPE_DIRECT
   
      # VPC direct connection endpoint: {Uid}.vpc.{RegionId}.pai-eas.aliyuncs.com
      # Replace with your Alibaba Cloud account ID and region.
      ENDPOINT = "123**********.vpc.cn-shanghai.pai-eas.aliyuncs.com"
   
      # Replace with your EAS service name.
      SERVICE_NAME = "mnist_saved_model_example"
   
      # Replace with your service token. Obtain the token from the service details page.
      # Store tokens in environment variables or Key Management Service (KMS) rather than hardcoding them.
      TOKEN = "M2FhNjJlZDBmMzBmMzE4NjFiNzZhMmUxY2IxZjkyMDczNzAzYjFi****"
   
      if __name__ == '__main__':
          client = PredictClient(ENDPOINT, SERVICE_NAME)
          client.set_token(TOKEN)
          client.set_endpoint_type(ENDPOINT_TYPE_DIRECT)  # Enable VPC direct connection
          client.init()
   
          req = TFRequest('predict_images')
          req.add_feed('images', [1, 784], TFRequest.DT_FLOAT, [1] * 784)
          resp = client.predict(req)
          print(resp)

Java SDK

1. Add the Maven dependency. Add the following dependency to your pom.xml file. For the latest version, see the Maven repository. For more information, see Using the Java SDK.

      <dependency>
        <groupId>com.aliyun.openservices.eas</groupId>
        <artifactId>eas-sdk</artifactId>
        <version>2.0.20</version>
      </dependency>

2. Call the service.

      import com.aliyun.openservices.eas.predict.http.PredictClient;
      import com.aliyun.openservices.eas.predict.http.HttpConfig;
   
      public class TestString {
          public static void main(String[] args) throws Exception {
              // Create and initialize the client once at startup.
              // Do not create a new client for each request.
              PredictClient client = new PredictClient(new HttpConfig());
   
              // Replace with your service token from the service details page.
              client.setToken("YWFlMDYyZDNmNTc3M2I3MzMwYmY0MmYwM2Y2MTYxMTY4NzBkNzdj****");
   
              // Set the VPC direct connection endpoint: {Uid}.vpc.{RegionId}.pai-eas.aliyuncs.com
              // Replace with your Alibaba Cloud account ID and region.
              client.setDirectEndpoint("123**********.vpc.cn-shanghai.pai-eas.aliyuncs.com");
   
              // Replace with your EAS service name.
              client.setModelName("scorecard_pmml_example");
   
              // Define the input string.
              String request = "[{\"money_credit\": 3000000}, {\"money_credit\": 10000}]";
              System.out.println(request);
   
              // Send the prediction request.
              try {
                  String response = client.predict(request);
                  System.out.println(response);
              } catch (Exception e) {
                  e.printStackTrace();
              }
   
              // Shut down the client when finished.
              client.shutdown();
          }
      }

Go SDK

The Go package manager downloads the SDK automatically during compilation. No separate installation is required. For more information, see Golang SDK Guide.

package main

import (
    "fmt"
    "github.com/pai-eas/eas-golang-sdk/eas"
)

func main() {
    // VPC direct connection endpoint: {Uid}.vpc.{RegionId}.pai-eas.aliyuncs.com
    // Replace with your Alibaba Cloud account ID, region, and service name.
    client := eas.NewPredictClient("123**********.vpc.cn-shanghai.pai-eas.aliyuncs.com", "scorecard_pmml_example")

    // Replace with your service token from the service details page.
    client.SetToken("YWFlMDYyZDNmNTc3M2I3MzMwYmY0MmYwM2Y2MTYxMTY4NzBkNzdj****")
    client.SetEndpointType(eas.EndpointTypeDirect)
    client.Init()

    req := "[{\"fea1\": 1, \"fea2\": 2}]"
    for i := 0; i < 100; i++ {
        resp, err := client.StringPredict(req)
        if err != nil {
            fmt.Printf("failed to predict: %v\n", err.Error())
        } else {
            fmt.Printf("%v\n", resp)
        }
    }
}