DescribeDatastore Go Example
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
rest := chilkat.NewRest()
var success bool
authAws := chilkat.NewAuthAws()
authAws.SetAccessKey("AWS_ACCESS_KEY")
authAws.SetSecretKey("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.SetRegion("us-west-2")
authAws.SetServiceName("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 {
fmt.Println("ConnectFailReason: ", rest.ConnectFailReason())
fmt.Println(rest.LastErrorText())
rest.DisposeRest()
authAws.DisposeAuthAws()
return
}
rest.AddHeader("Content-Type","application/x-amz-json-1.1")
rest.AddHeader("X-Amz-Target","DescribeDatastore")
sbResponseBody := chilkat.NewStringBuilder()
success = rest.FullRequestNoBodySb("GET","/datastores/{datastoreName}",sbResponseBody)
if success != true {
fmt.Println(rest.LastErrorText())
rest.DisposeRest()
authAws.DisposeAuthAws()
sbResponseBody.DisposeStringBuilder()
return
}
respStatusCode := rest.ResponseStatusCode()
fmt.Println("response status code = ", respStatusCode)
if respStatusCode != 200 {
fmt.Println("Response Header:")
fmt.Println(rest.ResponseHeader())
fmt.Println("Response Body:")
fmt.Println(*sbResponseBody.GetAsString())
rest.DisposeRest()
authAws.DisposeAuthAws()
sbResponseBody.DisposeStringBuilder()
return
}
jResp := chilkat.NewJsonObject()
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
AttributeName_DECLARATION
timestampPartitionAttributeName_DECLARATION
TimestampFormat_DECLARATION
name_DECLARATION
v_type_DECLARATION
Arn := jResp.StringOf("datastore.arn")
CreationTime := jResp.IntOf("datastore.creationTime")
LastMessageArrivalTime := jResp.IntOf("datastore.lastMessageArrivalTime")
LastUpdateTime := jResp.IntOf("datastore.lastUpdateTime")
Name := jResp.StringOf("datastore.name")
NumberOfDays := jResp.IntOf("datastore.retentionPeriod.numberOfDays")
Unlimited := jResp.IntOf("datastore.retentionPeriod.unlimited")
Status := jResp.StringOf("datastore.status")
Bucket := jResp.StringOf("datastore.storage.customerManagedS3.bucket")
KeyPrefix := jResp.StringOf("datastore.storage.customerManagedS3.keyPrefix")
RoleArn := jResp.StringOf("datastore.storage.customerManagedS3.roleArn")
CustomerManagedS3StorageBucket := jResp.StringOf("datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.bucket")
CustomerManagedS3StorageKeyPrefix := jResp.StringOf("datastore.storage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.keyPrefix")
EstimatedOn := jResp.IntOf("statistics.size.estimatedOn")
EstimatedSizeInBytes := jResp.IntOf("statistics.size.estimatedSizeInBytes")
i := 0
count_i := jResp.SizeOfArray("datastore.datastorePartitions.partitions")
for i < count_i {
jResp.SetI(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")
for i < count_i {
jResp.SetI(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
// }
// }
// }
rest.DisposeRest()
authAws.DisposeAuthAws()
sbResponseBody.DisposeStringBuilder()
jResp.DisposeJsonObject()
