Chilkat Online Tools

GetTableMetadata Python Example

Athena

import sys
import chilkat

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

rest = chilkat.CkRest()

authAws = chilkat.CkAuthAws()
authAws.put_AccessKey("AWS_ACCESS_KEY")
authAws.put_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.put_Region("us-west-2")
authAws.put_ServiceName("athena")
# SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws)

# URL: https://athena.us-west-2.amazonaws.com/
# Use the same region as specified above.
success = rest.Connect("athena.us-west-2.amazonaws.com",443,True,True)
if (success != True):
    print("ConnectFailReason: " + str(rest.get_ConnectFailReason()))
    print(rest.lastErrorText())
    sys.exit()

# The following code creates the JSON request body.
# The JSON created by this code is shown below.

# Use this online tool to generate code from sample JSON:
# Generate Code to Create JSON

json = chilkat.CkJsonObject()
json.UpdateString("CatalogName","string")
json.UpdateString("DatabaseName","string")
json.UpdateString("TableName","string")

# The JSON request body created by the above code:

# {
#   "CatalogName": "string",
#   "DatabaseName": "string",
#   "TableName": "string"
# }

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

sbRequestBody = chilkat.CkStringBuilder()
json.EmitSb(sbRequestBody)
sbResponseBody = chilkat.CkStringBuilder()
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
if (success != True):
    print(rest.lastErrorText())
    sys.exit()

respStatusCode = rest.get_ResponseStatusCode()
print("response status code = " + str(respStatusCode))
if (respStatusCode != 200):
    print("Response Header:")
    print(rest.responseHeader())
    print("Response Body:")
    print(sbResponseBody.getAsString())
    sys.exit()

jResp = chilkat.CkJsonObject()
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

CreateTime = jResp.IntOf("TableMetadata.CreateTime")
LastAccessTime = jResp.IntOf("TableMetadata.LastAccessTime")
Name = jResp.stringOf("TableMetadata.Name")
v_String = jResp.stringOf("TableMetadata.Parameters.string")
TableType = jResp.stringOf("TableMetadata.TableType")
i = 0
count_i = jResp.SizeOfArray("TableMetadata.Columns")
while i < count_i :
    jResp.put_I(i)
    Comment = jResp.stringOf("TableMetadata.Columns[i].Comment")
    Name = jResp.stringOf("TableMetadata.Columns[i].Name")
    v_Type = jResp.stringOf("TableMetadata.Columns[i].Type")
    i = i + 1

i = 0
count_i = jResp.SizeOfArray("TableMetadata.PartitionKeys")
while i < count_i :
    jResp.put_I(i)
    Comment = jResp.stringOf("TableMetadata.PartitionKeys[i].Comment")
    Name = jResp.stringOf("TableMetadata.PartitionKeys[i].Name")
    v_Type = jResp.stringOf("TableMetadata.PartitionKeys[i].Type")
    i = i + 1

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

# {
#   "TableMetadata": {
#     "Columns": [
#       {
#         "Comment": "string",
#         "Name": "string",
#         "Type": "string"
#       }
#     ],
#     "CreateTime": number,
#     "LastAccessTime": number,
#     "Name": "string",
#     "Parameters": {
#       "string": "string"
#     },
#     "PartitionKeys": [
#       {
#         "Comment": "string",
#         "Name": "string",
#         "Type": "string"
#       }
#     ],
#     "TableType": "string"
#   }
# }