使用Postman玩转腾讯云

pm.globals.set("TencentCloudApi", function TencentCloudApi() {
 let tencentcloudapi = {};
 function sha256_hex(msg) {
 var utf8_str = CryptoJS.enc.Utf8.parse(msg);
 var sha256_str = CryptoJS.SHA256(utf8_str);
 var sha256_hex_str = CryptoJS.enc.Hex.stringify(sha256_str);
 return sha256_hex_str;
 }
 function sign_hmac256(key, msg) {
 var utf8_str = CryptoJS.enc.Utf8.parse(msg);
 var hash_str = CryptoJS.HmacSHA256(utf8_str, key);
 return hash_str;
 }
 function sign_hmac256_hex(key, msg) {
 var utf8_str = CryptoJS.enc.Utf8.parse(msg);
 var hash_str = CryptoJS.HmacSHA256(utf8_str, key);
 var hex_str = CryptoJS.enc.Hex.stringify(hash_str);
 return hex_str;
 }
 function get_pm_env_or_global(key) {
 return (pm.environment.get(key) !== undefined)? pm.environment.get(key): pm.globals.get(key);
 }
 tencentcloudapi.build_request = function build_request(params) {
 var service = pm.environment.get("service");
 var host = service + get_pm_env_or_global("tencentcloud_endpoint");
 var region = pm.environment.get("region");
 var version = pm.environment.get("version");
 var action = request.headers["X-TC-Action"];
 var algorithm = "TC3-HMAC-SHA256";
 var timestamp = Math.round(Date.now() / 1000);
 var d = new Date();
 var date = d.toISOString().split('T')[0];
 // step 1：create canonical_request
 var http_request_method = "POST";
 var canonical_uri = "/";
 var canonical_querystring = "";
 // tencentcloud suggests to add charset=utf-8, however postman will set content-type to
 // application/json when request data format json is selected. So we don't add charset.
 //content_type = "application/json; charset=utf-8";
 var content_type = "application/json";
 var request_json_payload = JSON.stringify(params);
 var canonical_headers = "content-type:" + content_type + "\nhost:" + host + "\n";
 var signed_headers = "content-type;host";
 var hashed_request_payload = sha256_hex(request_json_payload);
 var canonical_request = http_request_method + "\n" +
 canonical_uri + "\n" +
 canonical_querystring + "\n" +
 canonical_headers + "\n" +
 signed_headers + "\n" +
 hashed_request_payload;
 //console.log('canonical_request');
 //console.log(canonical_request);
 // step 2：create signing_string
 var credential_scope = date + "/" + service + "/" + "tc3_request";
 var hashed_canonical_request = sha256_hex(canonical_request);
 var string_to_sign = algorithm + "\n" +
 timestamp.toString() + "\n" +
 credential_scope + "\n" +
 hashed_canonical_request;
 //console.log('string_to_sign');
 //console.log(string_to_sign);
 // step 3：calculate signature
 var secret_id = get_pm_env_or_global("secret_id");
 var secret_key = get_pm_env_or_global("secret_key");
 var secret_date_key = CryptoJS.enc.Utf8.parse("TC3" + secret_key);
 var secret_date = sign_hmac256(secret_date_key, date);
 var secret_service = sign_hmac256(secret_date, service);
 var secret_signing = sign_hmac256(secret_service, "tc3_request");
 var signature = sign_hmac256_hex(secret_signing, string_to_sign);
 //console.log("signature");
 //console.log(signature);
 // step 4：create authorization
 var authorization = algorithm + " " +
 "Credential=" + secret_id + "/" + credential_scope + ", " +
 "SignedHeaders=" + signed_headers + ", " +
 "Signature=" + signature;
 //console.log("authorization");
 //console.log(authorization);
 // step 5: add HTTP headers
 pm.request.headers.add("X-TC-Region:"+region);
 pm.request.headers.add("X-TC-Timestamp:"+timestamp);
 pm.request.headers.add("X-TC-Version:"+version);
 pm.request.headers.add("Authorization:"+authorization);
 pm.request.headers.add("Host:"+host);
  // step 6: set environment variables using in request
 pm.environment.set("host", host);
 pm.environment.set("request_json_payload", request_json_payload);
 };
 return tencentcloudapi;
} + 'TencentCloudApi();'
);

// 腾讯云API的接口名， 如RunInstances
var action = "RunInstances";
pm.request.headers.add("X-TC-Action:"+action);
var params = {
 //参照腾讯云API文档，填入请求的参数
};
eval(pm.globals.get('TencentCloudApi')).build_request(params);

var action = "RunInstances";
pm.request.headers.add("X-TC-Action:"+action);
var params = {
 "Placement": {
 "Zone": "ap-guangzhou-4"
 },
 "ImageId": "img-8toqc6s3",// CentOS 7.4
 "InstanceChargeType": "POSTPAID_BY_HOUR",
 "InstanceType": "S5.SMALL1",
 "SystemDisk": {
 "DiskType": "CLOUD_PREMIUM",
 "DiskSize": 50
 },
 "InstanceName": "Postman-create-CVM"
};
eval(pm.globals.get('TencentCloudApi')).build_request(params);

var jsonData = pm.response.json();
if (jsonData.Response.InstanceIdSet[0]) {
 postman.setEnvironmentVariable("instance_id", jsonData.Response.InstanceIdSet[0]);
}

var action = "DescribeInstances";
pm.request.headers.add("X-TC-Action:"+action);
var params = {
 "InstanceIds": [pm.environment.get("instance_id")]
};
eval(pm.globals.get('TencentCloudApi')).build_request(params);

var action = "TerminateInstances";
pm.request.headers.add("X-TC-Action:"+action);
var params = {
 "InstanceIds": [pm.environment.get("instance_id")]
};
eval(pm.globals.get('TencentCloudApi')).build_request(params);