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Class: Aws::Athena::Client

Inherits:
Seahorse::Client::Base show all
Defined in:
(unknown)

Overview

An API client for Amazon Athena. To construct a client, you need to configure a :region and :credentials.

athena = Aws::Athena::Client.new(
  region: region_name,
  credentials: credentials,
  # ...
)

See #initialize for a full list of supported configuration options.

Region

You can configure a default region in the following locations:

  • ENV['AWS_REGION']
  • Aws.config[:region]

Go here for a list of supported regions.

Credentials

Default credentials are loaded automatically from the following locations:

  • ENV['AWS_ACCESS_KEY_ID'] and ENV['AWS_SECRET_ACCESS_KEY']
  • Aws.config[:credentials]
  • The shared credentials ini file at ~/.aws/credentials (more information)
  • From an instance profile when running on EC2

You can also construct a credentials object from one of the following classes:

Alternatively, you configure credentials with :access_key_id and :secret_access_key:

# load credentials from disk
creds = YAML.load(File.read('/path/to/secrets'))

Aws::Athena::Client.new(
  access_key_id: creds['access_key_id'],
  secret_access_key: creds['secret_access_key']
)

Always load your credentials from outside your application. Avoid configuring credentials statically and never commit them to source control.

Instance Attribute Summary

Attributes inherited from Seahorse::Client::Base

#config, #handlers

Constructor collapse

API Operations collapse

Instance Method Summary collapse

Methods inherited from Seahorse::Client::Base

add_plugin, api, #build_request, clear_plugins, define, new, #operation, #operation_names, plugins, remove_plugin, set_api, set_plugins

Methods included from Seahorse::Client::HandlerBuilder

#handle, #handle_request, #handle_response

Constructor Details

#initialize(options = {}) ⇒ Aws::Athena::Client

Constructs an API client.

Options Hash (options):

  • :access_key_id (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :convert_params (Boolean) — default: true

    When true, an attempt is made to coerce request parameters into the required types. See Plugins::ParamConverter for more details.

  • :credentials (required, Credentials)

    Your AWS credentials. The following locations will be searched in order for credentials:

    • :access_key_id, :secret_access_key, and :session_token options
    • ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY']
    • HOME/.aws/credentials shared credentials file
    • EC2 instance profile credentials See Plugins::RequestSigner for more details.
  • :endpoint (String)

    A default endpoint is constructed from the :region. See Plugins::RegionalEndpoint for more details.

  • :http_continue_timeout (Float) — default: 1

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_idle_timeout (Integer) — default: 5

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_open_timeout (Integer) — default: 15

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_proxy (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_read_timeout (Integer) — default: 60

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_wire_trace (Boolean) — default: false

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :log_level (Symbol) — default: :info

    The log level to send messages to the logger at. See Plugins::Logging for more details.

  • :log_formatter (Logging::LogFormatter)

    The log formatter. Defaults to Seahorse::Client::Logging::Formatter.default. See Plugins::Logging for more details.

  • :logger (Logger) — default: nil

    The Logger instance to send log messages to. If this option is not set, logging will be disabled. See Plugins::Logging for more details.

  • :profile (String)

    Used when loading credentials from the shared credentials file at HOME/.aws/credentials. When not specified, 'default' is used. See Plugins::RequestSigner for more details.

  • :raise_response_errors (Boolean) — default: true

    When true, response errors are raised. See Seahorse::Client::Plugins::RaiseResponseErrors for more details.

  • :region (required, String)

    The AWS region to connect to. The region is used to construct the client endpoint. Defaults to ENV['AWS_REGION']. Also checks AMAZON_REGION and AWS_DEFAULT_REGION. See Plugins::RegionalEndpoint for more details.

  • :retry_limit (Integer) — default: 3

    The maximum number of times to retry failed requests. Only ~ 500 level server errors and certain ~ 400 level client errors are retried. Generally, these are throttling errors, data checksum errors, networking errors, timeout errors and auth errors from expired credentials. See Plugins::RetryErrors for more details.

  • :secret_access_key (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :session_token (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :simple_json (Boolean) — default: false

    Disables request parameter conversion, validation, and formatting. Also disable response data type conversions. This option is useful when you want to ensure the highest level of performance by avoiding overhead of walking request parameters and response data structures.

    When :simple_json is enabled, the request parameters hash must be formatted exactly as the DynamoDB API expects. See Plugins::Protocols::JsonRpc for more details.

  • :ssl_ca_bundle (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_ca_directory (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_ca_store (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_verify_peer (Boolean) — default: true

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :stub_responses (Boolean) — default: false

    Causes the client to return stubbed responses. By default fake responses are generated and returned. You can specify the response data to return or errors to raise by calling ClientStubs#stub_responses. See ClientStubs for more information.

    Please note When response stubbing is enabled, no HTTP requests are made, and retries are disabled. See Plugins::StubResponses for more details.

  • :validate_params (Boolean) — default: true

    When true, request parameters are validated before sending the request. See Plugins::ParamValidator for more details.

Instance Method Details

#batch_get_named_query(options = {}) ⇒ Types::BatchGetNamedQueryOutput

Returns the details of a single named query or a list of up to 50 queries, which you provide as an array of query ID strings. Use ListNamedQueries to get the list of named query IDs. If information could not be retrieved for a submitted query ID, information about the query ID submitted is listed under UnprocessedNamedQueryId. Named queries are different from executed queries. Use BatchGetQueryExecution to get details about each unique query execution, and ListQueryExecutions to get a list of query execution IDs.

Examples:

Request syntax with placeholder values


resp = client.batch_get_named_query({
  named_query_ids: ["NamedQueryId"], # required
})

Response structure


resp.named_queries #=> Array
resp.named_queries[0].name #=> String
resp.named_queries[0].description #=> String
resp.named_queries[0].database #=> String
resp.named_queries[0].query_string #=> String
resp.named_queries[0].named_query_id #=> String
resp.unprocessed_named_query_ids #=> Array
resp.unprocessed_named_query_ids[0].named_query_id #=> String
resp.unprocessed_named_query_ids[0].error_code #=> String
resp.unprocessed_named_query_ids[0].error_message #=> String

Options Hash (options):

  • :named_query_ids (required, Array<String>)

    An array of query IDs.

Returns:

See Also:

#batch_get_query_execution(options = {}) ⇒ Types::BatchGetQueryExecutionOutput

Returns the details of a single query execution or a list of up to 50 query executions, which you provide as an array of query execution ID strings. To get a list of query execution IDs, use ListQueryExecutions. Query executions are different from named (saved) queries. Use BatchGetNamedQuery to get details about named queries.

Examples:

Request syntax with placeholder values


resp = client.batch_get_query_execution({
  query_execution_ids: ["QueryExecutionId"], # required
})

Response structure


resp.query_executions #=> Array
resp.query_executions[0].query_execution_id #=> String
resp.query_executions[0].query #=> String
resp.query_executions[0].result_configuration.output_location #=> String
resp.query_executions[0].result_configuration.encryption_configuration.encryption_option #=> String, one of "SSE_S3", "SSE_KMS", "CSE_KMS"
resp.query_executions[0].result_configuration.encryption_configuration.kms_key #=> String
resp.query_executions[0].query_execution_context.database #=> String
resp.query_executions[0].status.state #=> String, one of "QUEUED", "RUNNING", "SUCCEEDED", "FAILED", "CANCELLED"
resp.query_executions[0].status.state_change_reason #=> String
resp.query_executions[0].status.submission_date_time #=> Time
resp.query_executions[0].status.completion_date_time #=> Time
resp.query_executions[0].statistics.engine_execution_time_in_millis #=> Integer
resp.query_executions[0].statistics.data_scanned_in_bytes #=> Integer
resp.unprocessed_query_execution_ids #=> Array
resp.unprocessed_query_execution_ids[0].query_execution_id #=> String
resp.unprocessed_query_execution_ids[0].error_code #=> String
resp.unprocessed_query_execution_ids[0].error_message #=> String

Options Hash (options):

  • :query_execution_ids (required, Array<String>)

    An array of query execution IDs.

Returns:

See Also:

#create_named_query(options = {}) ⇒ Types::CreateNamedQueryOutput

Creates a named query.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.create_named_query({
  name: "NameString", # required
  description: "DescriptionString",
  database: "DatabaseString", # required
  query_string: "QueryString", # required
  client_request_token: "IdempotencyToken",
})

Response structure


resp.named_query_id #=> String

Options Hash (options):

  • :name (required, String)

    The plain language name for the query.

  • :description (String)

    A brief explanation of the query.

  • :database (required, String)

    The database to which the query belongs.

  • :query_string (required, String)

    The text of the query itself. In other words, all query statements.

  • :client_request_token (String)

    This parameter will be auto-filled on your behalf with a random UUIDv4 when no value is provided. A unique case-sensitive string used to ensure the request to create the query is idempotent (executes only once). If another CreateNamedQuery request is received, the same response is returned and another query is not created. If a parameter has changed, for example, the QueryString, an error is returned.

    This token is listed as not required because AWS SDKs (for example the AWS SDK for Java) auto-generate the token for users. If you are not using the AWS SDK or the AWS CLI, you must provide this token or the action will fail.

Returns:

See Also:

#delete_named_query(options = {}) ⇒ Struct

Deletes a named query.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.delete_named_query({
  named_query_id: "NamedQueryId", # required
})

Options Hash (options):

  • :named_query_id (required, String)

    This parameter will be auto-filled on your behalf with a random UUIDv4 when no value is provided. The unique ID of the query to delete.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#get_named_query(options = {}) ⇒ Types::GetNamedQueryOutput

Returns information about a single query.

Examples:

Request syntax with placeholder values


resp = client.get_named_query({
  named_query_id: "NamedQueryId", # required
})

Response structure


resp.named_query.name #=> String
resp.named_query.description #=> String
resp.named_query.database #=> String
resp.named_query.query_string #=> String
resp.named_query.named_query_id #=> String

Options Hash (options):

  • :named_query_id (required, String)

    The unique ID of the query. Use ListNamedQueries to get query IDs.

Returns:

See Also:

#get_query_execution(options = {}) ⇒ Types::GetQueryExecutionOutput

Returns information about a single execution of a query. Each time a query executes, information about the query execution is saved with a unique ID.

Examples:

Request syntax with placeholder values


resp = client.get_query_execution({
  query_execution_id: "QueryExecutionId", # required
})

Response structure


resp.query_execution.query_execution_id #=> String
resp.query_execution.query #=> String
resp.query_execution.result_configuration.output_location #=> String
resp.query_execution.result_configuration.encryption_configuration.encryption_option #=> String, one of "SSE_S3", "SSE_KMS", "CSE_KMS"
resp.query_execution.result_configuration.encryption_configuration.kms_key #=> String
resp.query_execution.query_execution_context.database #=> String
resp.query_execution.status.state #=> String, one of "QUEUED", "RUNNING", "SUCCEEDED", "FAILED", "CANCELLED"
resp.query_execution.status.state_change_reason #=> String
resp.query_execution.status.submission_date_time #=> Time
resp.query_execution.status.completion_date_time #=> Time
resp.query_execution.statistics.engine_execution_time_in_millis #=> Integer
resp.query_execution.statistics.data_scanned_in_bytes #=> Integer

Options Hash (options):

  • :query_execution_id (required, String)

    The unique ID of the query execution.

Returns:

See Also:

#get_query_results(options = {}) ⇒ Types::GetQueryResultsOutput

Returns the results of a single query execution specified by QueryExecutionId. This request does not execute the query but returns results. Use StartQueryExecution to run a query.

Examples:

Request syntax with placeholder values


resp = client.get_query_results({
  query_execution_id: "QueryExecutionId", # required
  next_token: "Token",
  max_results: 1,
})

Response structure


resp.result_set.rows #=> Array
resp.result_set.rows[0].data #=> Array
resp.result_set.rows[0].data[0].var_char_value #=> String
resp.result_set..column_info #=> Array
resp.result_set..column_info[0].catalog_name #=> String
resp.result_set..column_info[0].schema_name #=> String
resp.result_set..column_info[0].table_name #=> String
resp.result_set..column_info[0].name #=> String
resp.result_set..column_info[0].label #=> String
resp.result_set..column_info[0].type #=> String
resp.result_set..column_info[0].precision #=> Integer
resp.result_set..column_info[0].scale #=> Integer
resp.result_set..column_info[0].nullable #=> String, one of "NOT_NULL", "NULLABLE", "UNKNOWN"
resp.result_set..column_info[0].case_sensitive #=> true/false
resp.next_token #=> String

Options Hash (options):

  • :query_execution_id (required, String)

    The unique ID of the query execution.

  • :next_token (String)

    The token that specifies where to start pagination if a previous request was truncated.

  • :max_results (Integer)

    The maximum number of results (rows) to return in this request.

Returns:

See Also:

#list_named_queries(options = {}) ⇒ Types::ListNamedQueriesOutput

Provides a list of all available query IDs.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.list_named_queries({
  next_token: "Token",
  max_results: 1,
})

Response structure


resp.named_query_ids #=> Array
resp.named_query_ids[0] #=> String
resp.next_token #=> String

Options Hash (options):

  • :next_token (String)

    The token that specifies where to start pagination if a previous request was truncated.

  • :max_results (Integer)

    The maximum number of queries to return in this request.

Returns:

See Also:

#list_query_executions(options = {}) ⇒ Types::ListQueryExecutionsOutput

Provides a list of all available query execution IDs.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.list_query_executions({
  next_token: "Token",
  max_results: 1,
})

Response structure


resp.query_execution_ids #=> Array
resp.query_execution_ids[0] #=> String
resp.next_token #=> String

Options Hash (options):

  • :next_token (String)

    The token that specifies where to start pagination if a previous request was truncated.

  • :max_results (Integer)

    The maximum number of query executions to return in this request.

Returns:

See Also:

#start_query_execution(options = {}) ⇒ Types::StartQueryExecutionOutput

Runs (executes) the SQL query statements contained in the Query string.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.start_query_execution({
  query_string: "QueryString", # required
  client_request_token: "IdempotencyToken",
  query_execution_context: {
    database: "DatabaseString",
  },
  result_configuration: { # required
    output_location: "String", # required
    encryption_configuration: {
      encryption_option: "SSE_S3", # required, accepts SSE_S3, SSE_KMS, CSE_KMS
      kms_key: "String",
    },
  },
})

Response structure


resp.query_execution_id #=> String

Options Hash (options):

  • :query_string (required, String)

    The SQL query statements to be executed.

  • :client_request_token (String)

    This parameter will be auto-filled on your behalf with a random UUIDv4 when no value is provided. A unique case-sensitive string used to ensure the request to create the query is idempotent (executes only once). If another StartQueryExecution request is received, the same response is returned and another query is not created. If a parameter has changed, for example, the QueryString, an error is returned.

    This token is listed as not required because AWS SDKs (for example the AWS SDK for Java) auto-generate the token for users. If you are not using the AWS SDK or the AWS CLI, you must provide this token or the action will fail.

  • :query_execution_context (Types::QueryExecutionContext)

    The database within which the query executes.

  • :result_configuration (required, Types::ResultConfiguration)

    Specifies information about where and how to save the results of the query execution.

Returns:

See Also:

#stop_query_execution(options = {}) ⇒ Struct

Stops a query execution.

For code samples using the AWS SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

Examples:

Request syntax with placeholder values


resp = client.stop_query_execution({
  query_execution_id: "QueryExecutionId", # required
})

Options Hash (options):

  • :query_execution_id (required, String)

    This parameter will be auto-filled on your behalf with a random UUIDv4 when no value is provided. The unique ID of the query execution to stop.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#wait_until(waiter_name, params = {}) {|waiter| ... } ⇒ Boolean

Waiters polls an API operation until a resource enters a desired state.

Basic Usage

Waiters will poll until they are succesful, they fail by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop, sleeping between attempts client.waiter_until(waiter_name, params)

Configuration

You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. You configure waiters by passing a block to #wait_until:

# poll for ~25 seconds
client.wait_until(...) do |w|
  w.max_attempts = 5
  w.delay = 5
end

Callbacks

You can be notified before each polling attempt and before each delay. If you throw :success or :failure from these callbacks, it will terminate the waiter.

started_at = Time.now
client.wait_until(...) do |w|

  # disable max attempts
  w.max_attempts = nil

  # poll for 1 hour, instead of a number of attempts
  w.before_wait do |attempts, response|
    throw :failure if Time.now - started_at > 3600
  end

end

Handling Errors

When a waiter is successful, it returns true. When a waiter fails, it raises an error. All errors raised extend from Waiters::Errors::WaiterFailed.

begin
  client.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
  # resource did not enter the desired state in time
end

Parameters:

  • waiter_name (Symbol)

    The name of the waiter. See #waiter_names for a full list of supported waiters.

  • params (Hash) (defaults to: {})

    Additional request parameters. See the #waiter_names for a list of supported waiters and what request they call. The called request determines the list of accepted parameters.

Yield Parameters:

Returns:

  • (Boolean)

    Returns true if the waiter was successful.

Raises:

  • (Errors::FailureStateError)

    Raised when the waiter terminates because the waiter has entered a state that it will not transition out of, preventing success.

  • (Errors::TooManyAttemptsError)

    Raised when the configured maximum number of attempts have been made, and the waiter is not yet successful.

  • (Errors::UnexpectedError)

    Raised when an error is encounted while polling for a resource that is not expected.

  • (Errors::NoSuchWaiterError)

    Raised when you request to wait for an unknown state.

#waiter_namesArray<Symbol>

Returns the list of supported waiters. The following table lists the supported waiters and the client method they call:

Waiter NameClient MethodDefault Delay:Default Max Attempts:

Returns:

  • (Array<Symbol>)

    the list of supported waiters.