Alibaba Cloud SDK:Initialize an SDK client

Initialize an SDK client of the RPC style

You can initialize an SDK client of the RPC style by using the following code and initiate a request. The following sample code provides an example on how to call the DescribeInstances operation of Elastic Compute Service (ECS). The API operation is of the 2014-05-26 version. You can obtain the sample code for calling other operations from OpenAPI Explorer.

const RPCClient = require('@alicloud/pop-core').RPCClient;

const client = new RPCClient({
    accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,
    accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET,
    endpoint: 'https://ecs.cn-beijing.aliyuncs.com', 
    apiVersion: '2014-05-26', 
});
const params = {};
const action = 'DescribeInstances';

// Call Method 1:=> returns Promise
// client.request(action, params).then((result)=>{
//     console.log(JSON.stringify(result));
// });

// Call Method 2:options
client.request(action, params, {
    timeout: 3000, // default 3000 ms
    formatAction: true, // default true, format the action to Action
    formatParams: true, // default true, format the parameter name to first letter upper case
    method: 'GET', // set the http method, default is GET
    headers: {}, // set the http request headers
}).then( (response) => {
    console.log(JSON.stringify(response));
});

Initialize an SDK client of the ROA style

You can initialize an SDK client of the ROA style by using the following code and initiate a request. The following sample code provides an example on how to call the DescribeClustersV1 operation of Container Service for Kubernetes (ACK). The API operation is of the 2015-12-15 version. You can obtain the sample code for calling other operations from OpenAPI Explorer.

const ROAClient = require('@alicloud/pop-core').ROAClient;

const roaClient = new ROAClient({
    accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,
    accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET,
    endpoint: 'https://cs.cn-beijing.aliyuncs.com', 
    apiVersion: '2015-12-15', 
});

const method = "GET" // The request method.
const uriPattern = '/api/v1/clusters'; // The URL.
const queryParams ={}; // The request parameters.
const body = ""; // The request body.
const headers = {
    "Content-Type": "application/json"
}; // The custom request header.
const options = {
    timeout: 3000, // default 3000 ms
};

roaClient.request(method, uriPattern, queryParams, body, headers, options)
    .then((response) => {
        console.log('ROA Response:', response);
    })
    .catch((error) => {
        console.error('ROA Error:', error);
    });