Start Document Analysis

The Start Document Analysis activity uses the Amazon Textract StartDocumentAnalysis API to asynchronously start the analysis of a document (DocumentName and Version) stored in an Amazon S3 bucket (Bucket).

After starting the document analysis, the activity returns the identifier assigned to the document analysis process as a String (JobId) that you can use as an input variable in the Get Document Analysis Status and Get Document Analysis activities.

How It Works

The following steps and message sequence diagram is an example of how the activity works from design time (i.e., the activity dependencies and input/output properties) to run time.

1. Complete the Setup steps.
2. Add the Amazon Scope activity to your project.
3. Add the Start Document Analysis inside the Amazon Scope activity.
4. Enter values for the S3 Storage input properties.
5. Create and enter a String variable for your Output property.

6. Run the activity.

   • Your input properties are sent to the StartDocumentAnalysis API.
   • The API returns the String value to your output property variable.
     
     

     

     
     

Properties

The values for the following properties are specified when adding this activity to your project in UiPath Studio.

Common

DisplayName

The display name of the activity.

Attributes	Details
Type	String
Required	Yes
Default value	Start Document Analysis
Allowed values	Enter a String or String variable.
Notes	N/A

S3 Storage

Bucket

The name of the S3 bucket where the document is stored.

Attributes	Details
Type	String
Required	Yes
Default value	Empty
Allowed values	Enter a String or String variable.
Notes	The AWS Region for the S3 bucket that contains the document must match the Region that you selected in the Amazon Scope activity. For Amazon Textract to process a file in an S3 bucket, the user must have permission to access the S3 bucket; for more information, see step 6 in the Create IAM User section of the Setup guide.

DocumentName

The case-sensitive name of the file in the specfied Bucket that you want to start analyzing.

Attributes	Details
Type	String
Required	Yes
Default value	Empty
Allowed values	Enter a String or String variable.
Notes	Supported document formats: PNG, JPEG, and PDF.

Version

If the bucket has versioning enabled, you can specify the object version.

Attributes	Details
Type	String
Required	No
Default value	Empty
Allowed values	Enter a String or String variable.
Notes	N/A

Misc

Private

If selected, the values of variables and arguments are no longer logged at Verbose level.

Attributes	Details
Type	Checkbox
Required	No
Default value	Not Selected
Allowed values	Selected or Not Selected
Notes	N/A

Output

JobId

The identifier assigned to the document analysis process.

Attributes	Details
Type	String
Required	No (recommended if you plan to use the output data in subsequent activities)
Default value	Empty
Allowed values	Enter a String variable
Notes	The variable you create for this property can be used as an input variable in the Get Document Analysis Status and activities. A JobId value is only valid for 7 days.

Options

AnalysisType

Specifies the types of analysis to perform. Use Tables to return information about the tables that are detected in the input document and Forms to return detected form data.

Attributes	Details
Type	enum
Required	No.
Default value	All
Allowed values	All, Tables, Forms
Notes	N/A

Example

The following image shows an example of the activity dependency relationship and input/output property values.

For step-by-step instructions and examples, see the guides.