(Node.js) Amazon Glacier Get Vault Access Policy

Demonstrates how to retrieve the access-policy subresource set on the vault

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var rest = new chilkat.Rest();

    // Connect to the Amazon AWS REST server in the desired region.
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    var success = rest.Connect("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials.
    var authAws = new chilkat.AuthAws();
    authAws.AccessKey = "AWS_ACCESS_KEY";
    authAws.SecretKey = "AWS_SECRET_KEY";
    authAws.ServiceName = "glacier";
    authAws.Region = "us-west-2";

    success = rest.SetAuthAws(authAws);

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // 
    // For more information, see Glacier Get Vault Access Policy Reference Documentation
    // 
    rest.AddHeader("x-amz-glacier-version","2012-06-01");

    // Get the access policy for the "chilkat" vault.
    var sbResponseBody = new chilkat.StringBuilder();
    success = rest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",sbResponseBody);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    var respStatusCode = rest.ResponseStatusCode;
    if (respStatusCode >= 400) {
        console.log("Response Status Code = " + respStatusCode);
        console.log("Response Header:");
        console.log(rest.ResponseHeader);
        console.log("Response Body:");
        console.log(sbResponseBody.GetAsString());
        return;
    }

    // Success is indicated by a 200 response status.
    console.log("response status code = " + respStatusCode);

    var json = new chilkat.JsonObject();
    json.LoadSb(sbResponseBody);
    json.EmitCompact = false;

    // Returns JSON such as this:
    // {
    //   "Policy": "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Define-owner-access-rights\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"arn:aws:iam::9999999999999:root\"},\"Action\":\"glacier:DeleteArchive\",\"Resource\":\"arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat\"}]}"
    // }

    // Unwrap...
    var jsonPolicy = new chilkat.JsonObject();
    jsonPolicy.Load(json.StringOf("Policy"));
    jsonPolicy.EmitCompact = false;

    console.log(jsonPolicy.Emit());
    console.log("----");

    // The jsonPolicy contains:

    // {
    //   "Version": "2012-10-17",
    //   "Statement": [
    //     {
    //       "Sid": "Define-owner-access-rights",
    //       "Effect": "Allow",
    //       "Principal": {
    //         "AWS": "arn:aws:iam::9999999999999:root"
    //       },
    //       "Action": "glacier:DeleteArchive",
    //       "Resource": "arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat"
    //     }
    //   ]
    // }
    // 

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // To parse the above contents of jsonPolicy...
    var Version;
    var i;
    var count_i;
    var Sid;
    var Effect;
    var PrincipalAWS;
    var Action;
    var Resource;

    Version = jsonPolicy.StringOf("Version");
    i = 0;
    count_i = jsonPolicy.SizeOfArray("Statement");
    while (i < count_i) {
        jsonPolicy.I = i;
        Sid = jsonPolicy.StringOf("Statement[i].Sid");
        Effect = jsonPolicy.StringOf("Statement[i].Effect");
        PrincipalAWS = jsonPolicy.StringOf("Statement[i].Principal.AWS");
        Action = jsonPolicy.StringOf("Statement[i].Action");
        Resource = jsonPolicy.StringOf("Statement[i].Resource");
        i = i+1;
    }


}

chilkatExample();