Resistant Document provides API which is well-suited to programmatically interact with document analysis engine. The API integration consists of three steps:

1. Creating document submission
2. Uploading the file
3. Fetching analysis result

In the first step, the submission_id is generated using submit endpoint. The submission_id uniquely identifies the analyzed document through whole analysis process and is used to fetch the analysis reports later.

Next to the submission_id the submit endpoint returns upload_url containing pre-signed URL which should be used to upload the actual document that will be analyzed. Please note that the document has to be uploaded using HTTP PUT method with Content-Type HTTP header set to application/octet-stream.

In the last step client should repeatedly poll results using the result endpoint with submission_id obtained in step 1 as parameter. The best practice is to use exponential back-off to reduce load.