Black Lives Matter

Neon Law

How We Programmatically Handle Files

We consider files grouped data that is not stored in our primary PostgreSQL database, such as images, Microsoft Word documents, PDF files, audio and video. This blog post will go over how we capture user uploads, store the files on our server, and render them to users.

Designing a Data Model

We have two different type of files in our system, ResponseDocuments or files that our clients upload in response to questions we ask them and MatterDocuments or files that we upload for our clients when providing legal advice. If you have read our blog post about authorization, portal users can upload documents in response to a question, and lawyer and admin users can upload matter documents. This is enforced with a PostgreSQL check before creating either record.

Storage in GCP Buckets

We maintain two GCP buckets for storing files, one for unprocessed uploads that any user can upload to and one for storing the files after they have been processed by our server.

Unprocessed Uploads Bucket

Uploaded documents in the unprocessed folder are deleted after 2 hours from when it was uploaded. A filename in this bucket is the base64 encoding of the uploadURL created from Transloadit.

Private Assets Bucket

After a document is processed by our server, we copy the file from the unprocessed uploads folder to our private assets bucket. Each file follows the format matters/${matterId}/filename or responses/${responseId}/filename.

You may have correctly guessed that MatterDocuments are stored in the form of matters/${matterId}/filename and ResponseDocuments are stored in the form of responses/${responseId}/filename.

File Uploads

We use Transloadit to process file uploads from our application. Our upload process is two HTTP requests. First, a HTTP POST request is made to Transloadit to upload our file to its server. Second, with the uploadURL returned from Transloadit, a user sends a GraphQL mutation request to our API to create a response_document or matter_document with either the createResponseDocument or createMatterDocument mutation respectively.

Choose a Transloadit Template and getTransloaditToken

Upload to Transloadit

After you upload a file to Transloadit, Transloadit will return an uploadURL in the response body. This uploadURL is what is sent to react-hook-form.

After Transloadit Processes the File, the Unprocessed Upload Bucket

Create a Matter Document or Response Document



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