Chilkat Online Tools

DescribeDatastore Node.js Example

AWS IoT Analytics

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node17-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node17-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node17-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node17-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node17-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node17-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();
    var success;

    var authAws = new chilkat.AuthAws();
    authAws.AccessKey = "AWS_ACCESS_KEY";
    authAws.SecretKey = "AWS_SECRET_KEY";

    // Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
    authAws.Region = "us-west-2";
    authAws.ServiceName = "iotanalytics";
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

    // URL: https://iotanalytics.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("iotanalytics.us-west-2.amazonaws.com",443,true,true);
    if (success !== true) {
        console.log("ConnectFailReason: " + rest.ConnectFailReason);
        console.log(rest.LastErrorText);
        return;
    }

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","DescribeDatastore");

    var sbResponseBody = new chilkat.StringBuilder();
    success = rest.FullRequestNoBodySb("GET","/datastores/{datastoreName}",sbResponseBody);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    var respStatusCode = rest.ResponseStatusCode;
    console.log("response status code = " + respStatusCode);
    if (respStatusCode !== 200) {
        console.log("Response Header:");
        console.log(rest.ResponseHeader);
        console.log("Response Body:");
        console.log(sbResponseBody.GetAsString());
        return;
    }

    var jResp = new chilkat.JsonObject();
    jResp.LoadSb(sbResponseBody);

    // The following code parses the JSON response.
    // A sample JSON response is shown below the sample code.

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

    var AttributeName;
    var timestampPartitionAttributeName;
    var TimestampFormat;
    var name;
    var v_type;

    var Arn = jResp.StringOf("datastore.arn");
    var CreationTime = jResp.IntOf("datastore.creationTime");
    var LastMessageArrivalTime = jResp.IntOf("datastore.lastMessageArrivalTime");
    var LastUpdateTime = jResp.IntOf("datastore.lastUpdateTime");
    var Name = jResp.StringOf("datastore.name");
    var NumberOfDays = jResp.IntOf("datastore.retentionPeriod.numberOfDays");
    var Unlimited = jResp.IntOf("datastore.retentionPeriod.unlimited");
    var Status = jResp.StringOf("datastore.status");
    var Bucket = jResp.StringOf("datastore.storage.customerManagedS3.bucket");
    var KeyPrefix = jResp.StringOf("datastore.storage.customerManagedS3.keyPrefix");
    var RoleArn = jResp.StringOf("datastore.storage.customerManagedS3.roleArn");
    var CustomerManagedS3StorageBucket = jResp.StringOf("datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.bucket");
    var CustomerManagedS3StorageKeyPrefix = jResp.StringOf("datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.keyPrefix");
    var EstimatedOn = jResp.IntOf("statistics.size.estimatedOn");
    var EstimatedSizeInBytes = jResp.IntOf("statistics.size.estimatedSizeInBytes");
    var i = 0;
    var count_i = jResp.SizeOfArray("datastore.datastorePartitions.partitions");
    while (i < count_i) {
        jResp.I = i;
        AttributeName = jResp.StringOf("datastore.datastorePartitions.partitions[i].attributePartition.attributeName");
        timestampPartitionAttributeName = jResp.StringOf("datastore.datastorePartitions.partitions[i].timestampPartition.attributeName");
        TimestampFormat = jResp.StringOf("datastore.datastorePartitions.partitions[i].timestampPartition.timestampFormat");
        i = i+1;
    }

    i = 0;
    count_i = jResp.SizeOfArray("datastore.fileFormatConfiguration.parquetConfiguration.schemaDefinition.columns");
    while (i < count_i) {
        jResp.I = i;
        name = jResp.StringOf("datastore.fileFormatConfiguration.parquetConfiguration.schemaDefinition.columns[i].name");
        v_type = jResp.StringOf("datastore.fileFormatConfiguration.parquetConfiguration.schemaDefinition.columns[i].type");
        i = i+1;
    }

    // A sample JSON response body parsed by the above code:

    // {
    //   "datastore": {
    //     "arn": "string",
    //     "creationTime": number,
    //     "datastorePartitions": {
    //       "partitions": [
    //         {
    //           "attributePartition": {
    //             "attributeName": "string"
    //           },
    //           "timestampPartition": {
    //             "attributeName": "string",
    //             "timestampFormat": "string"
    //           }
    //         }
    //       ]
    //     },
    //     "fileFormatConfiguration": {
    //       "jsonConfiguration": {},
    //       "parquetConfiguration": {
    //         "schemaDefinition": {
    //           "columns": [
    //             {
    //               "name": "string",
    //               "type": "string"
    //             }
    //           ]
    //         }
    //       }
    //     },
    //     "lastMessageArrivalTime": number,
    //     "lastUpdateTime": number,
    //     "name": "string",
    //     "retentionPeriod": {
    //       "numberOfDays": number,
    //       "unlimited": boolean
    //     },
    //     "status": "string",
    //     "storage": {
    //       "customerManagedS3": {
    //         "bucket": "string",
    //         "keyPrefix": "string",
    //         "roleArn": "string"
    //       },
    //       "iotSiteWiseMultiLayerStorage": {
    //         "customerManagedS3Storage": {
    //           "bucket": "string",
    //           "keyPrefix": "string"
    //         }
    //       },
    //       "serviceManagedS3": {}
    //     }
    //   },
    //   "statistics": {
    //     "size": {
    //       "estimatedOn": number,
    //       "estimatedSizeInBytes": number
    //     }
    //   }
    // }

}

chilkatExample();