DescribeDatastore Swift3 Example
func chilkatTest() {
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
let rest = CkoRest()!
var success: Bool
let authAws = CkoAuthAws()!
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", port: 443, tls: true, autoReconnect: true)
if success != true {
print("ConnectFailReason: \(rest.connectFailReason.intValue)")
print("\(rest.lastErrorText!)")
return
}
rest.addHeader("Content-Type", value: "application/x-amz-json-1.1")
rest.addHeader("X-Amz-Target", value: "DescribeDatastore")
let sbResponseBody = CkoStringBuilder()!
success = rest.fullRequestNoBodySb("GET", uriPath: "/datastores/{datastoreName}", sb: sbResponseBody)
if success != true {
print("\(rest.lastErrorText!)")
return
}
var respStatusCode: Int = rest.responseStatusCode.intValue
print("response status code = \(respStatusCode)")
if respStatusCode != 200 {
print("Response Header:")
print("\(rest.responseHeader!)")
print("Response Body:")
print("\(sbResponseBody.getAsString()!)")
return
}
let jResp = CkoJsonObject()!
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: String?
var timestampPartitionAttributeName: String?
var TimestampFormat: String?
var name: String?
var v_type: String?
var Arn: String? = jResp.string(of: "datastore.arn")
var CreationTime: Int = jResp.int(of: "datastore.creationTime").intValue
var LastMessageArrivalTime: Int = jResp.int(of: "datastore.lastMessageArrivalTime").intValue
var LastUpdateTime: Int = jResp.int(of: "datastore.lastUpdateTime").intValue
var Name: String? = jResp.string(of: "datastore.name")
var NumberOfDays: Int = jResp.int(of: "datastore.retentionPeriod.numberOfDays").intValue
var Unlimited: Int = jResp.int(of: "datastore.retentionPeriod.unlimited").intValue
var Status: String? = jResp.string(of: "datastore.status")
var Bucket: String? = jResp.string(of: "datastore.storage.customerManagedS3.bucket")
var KeyPrefix: String? = jResp.string(of: "datastore.storage.customerManagedS3.keyPrefix")
var RoleArn: String? = jResp.string(of: "datastore.storage.customerManagedS3.roleArn")
var CustomerManagedS3StorageBucket: String? = jResp.string(of: "datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.bucket")
var CustomerManagedS3StorageKeyPrefix: String? = jResp.string(of: "datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.keyPrefix")
var EstimatedOn: Int = jResp.int(of: "statistics.size.estimatedOn").intValue
var EstimatedSizeInBytes: Int = jResp.int(of: "statistics.size.estimatedSizeInBytes").intValue
var i: Int = 0
var count_i: Int = jResp.size(ofArray: "datastore.datastorePartitions.partitions").intValue
while i < count_i {
jResp.i = i
AttributeName = jResp.string(of: "datastore.datastorePartitions.partitions[i].attributePartition.attributeName")
timestampPartitionAttributeName = jResp.string(of: "datastore.datastorePartitions.partitions[i].timestampPartition.attributeName")
TimestampFormat = jResp.string(of: "datastore.datastorePartitions.partitions[i].timestampPartition.timestampFormat")
i = i + 1
}
i = 0
count_i = jResp.size(ofArray: "datastore.fileFormatConfiguration.parquetConfiguration.schemaDefinition.columns").intValue
while i < count_i {
jResp.i = i
name = jResp.string(of: "datastore.fileFormatConfiguration.parquetConfiguration.schemaDefinition.columns[i].name")
v_type = jResp.string(of: "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
// }
// }
// }
}
