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Class: Aws::Textract::Client

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

Overview

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

textract = Aws::Textract::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::Textract::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::Textract::Client

Constructs an API client.

Options Hash (options):

  • :access_key_id (String)

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

  • :active_endpoint_cache (Boolean)

    When set to true, a thread polling for endpoints will be running in the background every 60 secs (default). Defaults to false. See Plugins::EndpointDiscovery 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.
  • :disable_host_prefix_injection (Boolean)

    Set to true to disable SDK automatically adding host prefix to default service endpoint when available. See Plugins::EndpointPattern for more details.

  • :endpoint (String)

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

  • :endpoint_cache_max_entries (Integer)

    Used for the maximum size limit of the LRU cache storing endpoints data for endpoint discovery enabled operations. Defaults to 1000. See Plugins::EndpointDiscovery for more details.

  • :endpoint_cache_max_threads (Integer)

    Used for the maximum threads in use for polling endpoints to be cached, defaults to 10. See Plugins::EndpointDiscovery for more details.

  • :endpoint_cache_poll_interval (Integer)

    When :endpoint_discovery and :active_endpoint_cache is enabled, Use this option to config the time interval in seconds for making requests fetching endpoints information. Defaults to 60 sec. See Plugins::EndpointDiscovery for more details.

  • :endpoint_discovery (Boolean)

    When set to true, endpoint discovery will be enabled for operations when available. Defaults to false. See Plugins::EndpointDiscovery 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

#analyze_document(options = {}) ⇒ Types::AnalyzeDocumentResponse

Analyzes an input document for relationships between detected items.

The types of information returned are as follows:

  • Words and lines that are related to nearby lines and words. The related information is returned in two Block objects each of type KEY_VALUE_SET: a KEY Block object and a VALUE Block object. For example, Name: Ana Silva Carolina contains a key and value. Name: is the key. Ana Silva Carolina is the value.

  • Table and table cell data. A TABLE Block object contains information about a detected table. A CELL Block object is returned for each cell in a table.

  • Selectable elements such as checkboxes and radio buttons. A SELECTION_ELEMENT Block object contains information about a selectable element.

  • Lines and words of text. A LINE Block object contains one or more WORD Block objects.

You can choose which type of analysis to perform by specifying the FeatureTypes list.

The output is returned in a list of BLOCK objects.

AnalyzeDocument is a synchronous operation. To analyze documents asynchronously, use StartDocumentAnalysis.

For more information, see Document Text Analysis.

Examples:

Request syntax with placeholder values


resp = client.analyze_document({
  document: { # required
    bytes: "data",
    s3_object: {
      bucket: "S3Bucket",
      name: "S3ObjectName",
      version: "S3ObjectVersion",
    },
  },
  feature_types: ["TABLES"], # required, accepts TABLES, FORMS
})

Response structure


resp..pages #=> Integer
resp.blocks #=> Array
resp.blocks[0].block_type #=> String, one of "KEY_VALUE_SET", "PAGE", "LINE", "WORD", "TABLE", "CELL", "SELECTION_ELEMENT"
resp.blocks[0].confidence #=> Float
resp.blocks[0].text #=> String
resp.blocks[0].row_index #=> Integer
resp.blocks[0].column_index #=> Integer
resp.blocks[0].row_span #=> Integer
resp.blocks[0].column_span #=> Integer
resp.blocks[0].geometry.bounding_box.width #=> Float
resp.blocks[0].geometry.bounding_box.height #=> Float
resp.blocks[0].geometry.bounding_box.left #=> Float
resp.blocks[0].geometry.bounding_box.top #=> Float
resp.blocks[0].geometry.polygon #=> Array
resp.blocks[0].geometry.polygon[0].x #=> Float
resp.blocks[0].geometry.polygon[0].y #=> Float
resp.blocks[0].id #=> String
resp.blocks[0].relationships #=> Array
resp.blocks[0].relationships[0].type #=> String, one of "VALUE", "CHILD"
resp.blocks[0].relationships[0].ids #=> Array
resp.blocks[0].relationships[0].ids[0] #=> String
resp.blocks[0].entity_types #=> Array
resp.blocks[0].entity_types[0] #=> String, one of "KEY", "VALUE"
resp.blocks[0].selection_status #=> String, one of "SELECTED", "NOT_SELECTED"
resp.blocks[0].page #=> Integer

Options Hash (options):

  • :document (required, Types::Document)

    The input document as base64-encoded bytes or an Amazon S3 object. If you use the AWS CLI to call Amazon Textract operations, you can\'t pass image bytes. The document must be an image in JPG or PNG format.

    If you are using an AWS SDK to call Amazon Textract, you might not need to base64-encode image bytes passed using the Bytes field.

  • :feature_types (required, Array<String>)

    A list of the types of analysis to perform. Add TABLES to the list to return information about the tables detected in the input document. Add FORMS to return detected fields and the associated text. To perform both types of analysis, add TABLES and FORMS to FeatureTypes.

Returns:

See Also:

#detect_document_text(options = {}) ⇒ Types::DetectDocumentTextResponse

Detects text in the input document. Amazon Textract can detect lines of text and the words that make up a line of text. The input document must be an image in JPG or PNG format. DetectDocumentText returns the detected text in an array of Block objects.

Each document page has as an associated Block of type PAGE. Each PAGE Block object is the parent of LINE Block objects that represent the lines of detected text on a page. A LINE Block object is a parent for each word that makes up the line. Words are represented by Block objects of type WORD.

DetectDocumentText is a synchronous operation. To analyze documents asynchronously, use StartDocumentTextDetection.

For more information, see Document Text Detection.

Examples:

Request syntax with placeholder values


resp = client.detect_document_text({
  document: { # required
    bytes: "data",
    s3_object: {
      bucket: "S3Bucket",
      name: "S3ObjectName",
      version: "S3ObjectVersion",
    },
  },
})

Response structure


resp..pages #=> Integer
resp.blocks #=> Array
resp.blocks[0].block_type #=> String, one of "KEY_VALUE_SET", "PAGE", "LINE", "WORD", "TABLE", "CELL", "SELECTION_ELEMENT"
resp.blocks[0].confidence #=> Float
resp.blocks[0].text #=> String
resp.blocks[0].row_index #=> Integer
resp.blocks[0].column_index #=> Integer
resp.blocks[0].row_span #=> Integer
resp.blocks[0].column_span #=> Integer
resp.blocks[0].geometry.bounding_box.width #=> Float
resp.blocks[0].geometry.bounding_box.height #=> Float
resp.blocks[0].geometry.bounding_box.left #=> Float
resp.blocks[0].geometry.bounding_box.top #=> Float
resp.blocks[0].geometry.polygon #=> Array
resp.blocks[0].geometry.polygon[0].x #=> Float
resp.blocks[0].geometry.polygon[0].y #=> Float
resp.blocks[0].id #=> String
resp.blocks[0].relationships #=> Array
resp.blocks[0].relationships[0].type #=> String, one of "VALUE", "CHILD"
resp.blocks[0].relationships[0].ids #=> Array
resp.blocks[0].relationships[0].ids[0] #=> String
resp.blocks[0].entity_types #=> Array
resp.blocks[0].entity_types[0] #=> String, one of "KEY", "VALUE"
resp.blocks[0].selection_status #=> String, one of "SELECTED", "NOT_SELECTED"
resp.blocks[0].page #=> Integer

Options Hash (options):

  • :document (required, Types::Document)

    The input document as base64-encoded bytes or an Amazon S3 object. If you use the AWS CLI to call Amazon Textract operations, you can\'t pass image bytes. The document must be an image in JPG or PNG format.

    If you are using an AWS SDK to call Amazon Textract, you might not need to base64-encode image bytes passed using the Bytes field.

Returns:

See Also:

#get_document_analysis(options = {}) ⇒ Types::GetDocumentAnalysisResponse

Gets the results for an Amazon Textract asynchronous operation that analyzes text in a document.

You start asynchronous text analysis by calling StartDocumentAnalysis, which returns a job identifier (JobId). When the text analysis operation finishes, Amazon Textract publishes a completion status to the Amazon Simple Notification Service (Amazon SNS) topic that's registered in the initial call to StartDocumentAnalysis. To get the results of the text-detection operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetDocumentAnalysis, and pass the job identifier (JobId) from the initial call to StartDocumentAnalysis.

GetDocumentAnalysis returns an array of Block objects. The following types of information are returned:

  • Words and lines that are related to nearby lines and words. The related information is returned in two Block objects each of type KEY_VALUE_SET: a KEY Block object and a VALUE Block object. For example, Name: Ana Silva Carolina contains a key and value. Name: is the key. Ana Silva Carolina is the value.

  • Table and table cell data. A TABLE Block object contains information about a detected table. A CELL Block object is returned for each cell in a table.

  • Selectable elements such as checkboxes and radio buttons. A SELECTION_ELEMENT Block object contains information about a selectable element.

  • Lines and words of text. A LINE Block object contains one or more WORD Block objects.

Use the MaxResults parameter to limit the number of blocks returned. If there are more results than specified in MaxResults, the value of NextToken in the operation response contains a pagination token for getting the next set of results. To get the next page of results, call GetDocumentAnalysis, and populate the NextToken request parameter with the token value that's returned from the previous call to GetDocumentAnalysis.

For more information, see Document Text Analysis.

Examples:

Request syntax with placeholder values


resp = client.get_document_analysis({
  job_id: "JobId", # required
  max_results: 1,
  next_token: "PaginationToken",
})

Response structure


resp..pages #=> Integer
resp.job_status #=> String, one of "IN_PROGRESS", "SUCCEEDED", "FAILED", "PARTIAL_SUCCESS"
resp.next_token #=> String
resp.blocks #=> Array
resp.blocks[0].block_type #=> String, one of "KEY_VALUE_SET", "PAGE", "LINE", "WORD", "TABLE", "CELL", "SELECTION_ELEMENT"
resp.blocks[0].confidence #=> Float
resp.blocks[0].text #=> String
resp.blocks[0].row_index #=> Integer
resp.blocks[0].column_index #=> Integer
resp.blocks[0].row_span #=> Integer
resp.blocks[0].column_span #=> Integer
resp.blocks[0].geometry.bounding_box.width #=> Float
resp.blocks[0].geometry.bounding_box.height #=> Float
resp.blocks[0].geometry.bounding_box.left #=> Float
resp.blocks[0].geometry.bounding_box.top #=> Float
resp.blocks[0].geometry.polygon #=> Array
resp.blocks[0].geometry.polygon[0].x #=> Float
resp.blocks[0].geometry.polygon[0].y #=> Float
resp.blocks[0].id #=> String
resp.blocks[0].relationships #=> Array
resp.blocks[0].relationships[0].type #=> String, one of "VALUE", "CHILD"
resp.blocks[0].relationships[0].ids #=> Array
resp.blocks[0].relationships[0].ids[0] #=> String
resp.blocks[0].entity_types #=> Array
resp.blocks[0].entity_types[0] #=> String, one of "KEY", "VALUE"
resp.blocks[0].selection_status #=> String, one of "SELECTED", "NOT_SELECTED"
resp.blocks[0].page #=> Integer
resp.warnings #=> Array
resp.warnings[0].error_code #=> String
resp.warnings[0].pages #=> Array
resp.warnings[0].pages[0] #=> Integer
resp.status_message #=> String

Options Hash (options):

  • :job_id (required, String)

    A unique identifier for the text-detection job. The JobId is returned from StartDocumentAnalysis.

  • :max_results (Integer)

    The maximum number of results to return per paginated call. The largest value that you can specify is 1,000. If you specify a value greater than 1,000, a maximum of 1,000 results is returned. The default value is 1,000.

  • :next_token (String)

    If the previous response was incomplete (because there are more blocks to retrieve), Amazon Textract returns a pagination token in the response. You can use this pagination token to retrieve the next set of blocks.

Returns:

See Also:

#get_document_text_detection(options = {}) ⇒ Types::GetDocumentTextDetectionResponse

Gets the results for an Amazon Textract asynchronous operation that detects text in a document. Amazon Textract can detect lines of text and the words that make up a line of text.

You start asynchronous text detection by calling StartDocumentTextDetection, which returns a job identifier (JobId). When the text detection operation finishes, Amazon Textract publishes a completion status to the Amazon Simple Notification Service (Amazon SNS) topic that's registered in the initial call to StartDocumentTextDetection. To get the results of the text-detection operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetDocumentTextDetection, and pass the job identifier (JobId) from the initial call to StartDocumentTextDetection.

GetDocumentTextDetection returns an array of Block objects.

Each document page has as an associated Block of type PAGE. Each PAGE Block object is the parent of LINE Block objects that represent the lines of detected text on a page. A LINE Block object is a parent for each word that makes up the line. Words are represented by Block objects of type WORD.

Use the MaxResults parameter to limit the number of blocks that are returned. If there are more results than specified in MaxResults, the value of NextToken in the operation response contains a pagination token for getting the next set of results. To get the next page of results, call GetDocumentTextDetection, and populate the NextToken request parameter with the token value that's returned from the previous call to GetDocumentTextDetection.

For more information, see Document Text Detection.

Examples:

Request syntax with placeholder values


resp = client.get_document_text_detection({
  job_id: "JobId", # required
  max_results: 1,
  next_token: "PaginationToken",
})

Response structure


resp..pages #=> Integer
resp.job_status #=> String, one of "IN_PROGRESS", "SUCCEEDED", "FAILED", "PARTIAL_SUCCESS"
resp.next_token #=> String
resp.blocks #=> Array
resp.blocks[0].block_type #=> String, one of "KEY_VALUE_SET", "PAGE", "LINE", "WORD", "TABLE", "CELL", "SELECTION_ELEMENT"
resp.blocks[0].confidence #=> Float
resp.blocks[0].text #=> String
resp.blocks[0].row_index #=> Integer
resp.blocks[0].column_index #=> Integer
resp.blocks[0].row_span #=> Integer
resp.blocks[0].column_span #=> Integer
resp.blocks[0].geometry.bounding_box.width #=> Float
resp.blocks[0].geometry.bounding_box.height #=> Float
resp.blocks[0].geometry.bounding_box.left #=> Float
resp.blocks[0].geometry.bounding_box.top #=> Float
resp.blocks[0].geometry.polygon #=> Array
resp.blocks[0].geometry.polygon[0].x #=> Float
resp.blocks[0].geometry.polygon[0].y #=> Float
resp.blocks[0].id #=> String
resp.blocks[0].relationships #=> Array
resp.blocks[0].relationships[0].type #=> String, one of "VALUE", "CHILD"
resp.blocks[0].relationships[0].ids #=> Array
resp.blocks[0].relationships[0].ids[0] #=> String
resp.blocks[0].entity_types #=> Array
resp.blocks[0].entity_types[0] #=> String, one of "KEY", "VALUE"
resp.blocks[0].selection_status #=> String, one of "SELECTED", "NOT_SELECTED"
resp.blocks[0].page #=> Integer
resp.warnings #=> Array
resp.warnings[0].error_code #=> String
resp.warnings[0].pages #=> Array
resp.warnings[0].pages[0] #=> Integer
resp.status_message #=> String

Options Hash (options):

  • :job_id (required, String)

    A unique identifier for the text detection job. The JobId is returned from StartDocumentTextDetection.

  • :max_results (Integer)

    The maximum number of results to return per paginated call. The largest value you can specify is 1,000. If you specify a value greater than 1,000, a maximum of 1,000 results is returned. The default value is 1,000.

  • :next_token (String)

    If the previous response was incomplete (because there are more blocks to retrieve), Amazon Textract returns a pagination token in the response. You can use this pagination token to retrieve the next set of blocks.

Returns:

See Also:

#start_document_analysis(options = {}) ⇒ Types::StartDocumentAnalysisResponse

Starts asynchronous analysis of an input document for relationships between detected items such as key and value pairs, tables, and selection elements.

StartDocumentAnalysis can analyze text in documents that are in JPG, PNG, and PDF format. The documents are stored in an Amazon S3 bucket. Use DocumentLocation to specify the bucket name and file name of the document.

StartDocumentAnalysis returns a job identifier (JobId) that you use to get the results of the operation. When text analysis is finished, Amazon Textract publishes a completion status to the Amazon Simple Notification Service (Amazon SNS) topic that you specify in NotificationChannel. To get the results of the text analysis operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetDocumentAnalysis, and pass the job identifier (JobId) from the initial call to StartDocumentAnalysis.

For more information, see Document Text Analysis.

Examples:

Request syntax with placeholder values


resp = client.start_document_analysis({
  document_location: { # required
    s3_object: {
      bucket: "S3Bucket",
      name: "S3ObjectName",
      version: "S3ObjectVersion",
    },
  },
  feature_types: ["TABLES"], # required, accepts TABLES, FORMS
  client_request_token: "ClientRequestToken",
  job_tag: "JobTag",
  notification_channel: {
    sns_topic_arn: "SNSTopicArn", # required
    role_arn: "RoleArn", # required
  },
})

Response structure


resp.job_id #=> String

Options Hash (options):

  • :document_location (required, Types::DocumentLocation)

    The location of the document to be processed.

  • :feature_types (required, Array<String>)

    A list of the types of analysis to perform. Add TABLES to the list to return information about the tables that are detected in the input document. Add FORMS to return detected fields and the associated text. To perform both types of analysis, add TABLES and FORMS to FeatureTypes. All selectable elements (SELECTION_ELEMENT) that are detected are returned, whatever the value of FeatureTypes.

  • :client_request_token (String)

    The idempotent token that you use to identify the start request. If you use the same token with multiple StartDocumentAnalysis requests, the same JobId is returned. Use ClientRequestToken to prevent the same job from being accidentally started more than once.

  • :job_tag (String)

    An identifier you specify that\'s included in the completion notification that\'s published to the Amazon SNS topic. For example, you can use JobTag to identify the type of document, such as a tax form or a receipt, that the completion notification corresponds to.

  • :notification_channel (Types::NotificationChannel)

    The Amazon SNS topic ARN that you want Amazon Textract to publish the completion status of the operation to.

Returns:

See Also:

#start_document_text_detection(options = {}) ⇒ Types::StartDocumentTextDetectionResponse

Starts the asynchronous detection of text in a document. Amazon Textract can detect lines of text and the words that make up a line of text.

StartDocumentTextDetection can analyze text in documents that are in JPG, PNG, and PDF format. The documents are stored in an Amazon S3 bucket. Use DocumentLocation to specify the bucket name and file name of the document.

StartTextDetection returns a job identifier (JobId) that you use to get the results of the operation. When text detection is finished, Amazon Textract publishes a completion status to the Amazon Simple Notification Service (Amazon SNS) topic that you specify in NotificationChannel. To get the results of the text detection operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetDocumentTextDetection, and pass the job identifier (JobId) from the initial call to StartDocumentTextDetection.

For more information, see Document Text Detection.

Examples:

Request syntax with placeholder values


resp = client.start_document_text_detection({
  document_location: { # required
    s3_object: {
      bucket: "S3Bucket",
      name: "S3ObjectName",
      version: "S3ObjectVersion",
    },
  },
  client_request_token: "ClientRequestToken",
  job_tag: "JobTag",
  notification_channel: {
    sns_topic_arn: "SNSTopicArn", # required
    role_arn: "RoleArn", # required
  },
})

Response structure


resp.job_id #=> String

Options Hash (options):

  • :document_location (required, Types::DocumentLocation)

    The location of the document to be processed.

  • :client_request_token (String)

    The idempotent token that\'s used to identify the start request. If you use the same token with multiple StartDocumentTextDetection requests, the same JobId is returned. Use ClientRequestToken to prevent the same job from being accidentally started more than once.

  • :job_tag (String)

    An identifier you specify that\'s included in the completion notification that\'s published to the Amazon SNS topic. For example, you can use JobTag to identify the type of document, such as a tax form or a receipt, that the completion notification corresponds to.

  • :notification_channel (Types::NotificationChannel)

    The Amazon SNS topic ARN that you want Amazon Textract to publish the completion status of the operation to.

Returns:

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.