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Filed does not accept file bytes over GraphQL. Instead, you upload each file to an upload endpoint, which returns an upload ID. You then pass those upload IDs to a GraphQL mutation: createClient to create a client with initial documents, or addClientDocuments to add documents to an existing client. Filed ingests the staged files into the client’s binder as a background task. There are two ways to upload. Both return an upload ID that you attach the same way:
  • Resumable upload (recommended) uses the tus protocol. It survives network drops and handles large files by chunking, so it is the right default for production integrations.
  • Direct upload is a single POST for small files, when you do not need resumability.

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Endpoints

PurposeEndpoint
Resumable upload (tus)https://web.apps.filed.com/api/uploads
Direct uploadhttps://web.apps.filed.com/api/upload/direct
GraphQLhttps://router.apps.filed.com/graphql
Uploads and GraphQL are on different hosts. Send file bytes to an upload endpoint, then send the returned upload IDs to the GraphQL endpoint. Both use the same Authorization: Bearer YOUR_WORKSPACE_TOKEN (see Authentication).
The resumable endpoint speaks tus 1.0.0. A minimal upload is two requests: a POST that creates the upload and returns its location, then a PATCH that sends the bytes. Any tus client library works; the raw requests are shown so you can see exactly what is on the wire.

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Create the upload

POST /api/uploads HTTP/1.1
Host: web.apps.filed.com
Authorization: Bearer YOUR_WORKSPACE_TOKEN
Tus-Resumable: 1.0.0
Upload-Length: 20480
Upload-Metadata: filename dzJfMTA0MC5wZGY=,filetype YXBwbGljYXRpb24vcGRm,intent Y2xpZW50LWRvY3VtZW50
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Upload-Length
integer
required
The exact size of the file in bytes.
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Upload-Metadata
string
required
Comma-separated key base64(value) pairs, per the tus protocol. Set filename and filetype (the MIME type). Optionally set intent to select the server’s validation policy: use client-document for client files. If intent is omitted, a default policy applies.
A successful create returns 201 Created with a Location header. The upload ID is the last path segment of that location. 
HTTP/1.1 201 Created
Location: https://web.apps.filed.com/api/uploads/018f9c2a-7b1e-7c3d-9a4e-2f6b1c8d0e5a

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Send the bytes

PATCH the file to the location from the previous step. 
PATCH /api/uploads/018f9c2a-7b1e-7c3d-9a4e-2f6b1c8d0e5a HTTP/1.1
Host: web.apps.filed.com
Authorization: Bearer YOUR_WORKSPACE_TOKEN
Tus-Resumable: 1.0.0
Upload-Offset: 0
Content-Type: application/offset+octet-stream

<raw file bytes>
A successful PATCH returns 204 No Content. Large files can be sent in multiple PATCH chunks, advancing Upload-Offset each time; the Filed web app uses 5 MB chunks. A per-file size cap is enforced by the server.

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Upload with a tus client

In practice, use a tus client library rather than hand-writing the POST and PATCH. It handles chunking, retries, and resuming after a network drop, and exposes the finished upload’s URL, whose last path segment is the upload ID. 
import { Upload } from "tus-js-client";
import fs from "node:fs";

const path = "w2_1040.pdf";
const size = fs.statSync(path).size;

const upload = new Upload(fs.createReadStream(path), {
  endpoint: "https://web.apps.filed.com/api/uploads",
  uploadSize: size,
  chunkSize: 5 * 1024 * 1024,
  retryDelays: [0, 1000, 3000, 5000],
  headers: { Authorization: "Bearer YOUR_WORKSPACE_TOKEN" },
  metadata: {
    filename: "w2_1040.pdf",
    filetype: "application/pdf",
    intent: "client-document",
  },
  onError: (error) => {
    throw error;
  },
  onSuccess: () => {
    const uploadId = upload.url.split("/").filter(Boolean).pop();
    console.log("upload ID:", uploadId);
  },
});

upload.start();
tus-js-client also runs in the browser: pass a File object instead of a stream and omit uploadSize. Install the clients with npm i tus-js-client and pip install tuspy.

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Direct upload

The direct upload endpoint is in development and not yet available. Use resumable uploads today. This section describes the intended shape; the exact request and response contract may change before release.
For small files where you do not need resumability, send the file bytes in a single POST to /api/upload/direct. It returns the same kind of upload ID that a resumable upload produces, which you attach to a client the same way. 
POST /api/upload/direct HTTP/1.1
Host: web.apps.filed.com
Authorization: Bearer YOUR_WORKSPACE_TOKEN
Content-Type: application/pdf

<raw file bytes>
The response returns the upload ID in its JSON body. Pass that ID in uploadIds exactly as you would a resumable upload ID (see Attach the upload IDs below).
Because it is a single request with no chunking or resume, direct upload is best for small files. For large files or unreliable networks, prefer the resumable endpoint above.

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Attach the upload IDs

Pass the collected upload IDs to a GraphQL mutation. To create a new client from the files, use createClient with uploadIds. To add files to an existing client’s binder, use addClientDocuments: 
mutation AddClientDocuments($input: AddClientDocumentsInput!) {
  addClientDocuments(input: $input) {
    taskId
  }
}

{
  "input": {
    "clientId": "018f9c2a-3d5f-7a10-b2c4-9e8d7f6a5b4c",
    "uploadIds": ["018f9c2a-7b1e-7c3d-9a4e-2f6b1c8d0e5a"]
  }
}
The mutation returns a taskId for the binder ingestion task. Filed converts, classifies, and files each document into the client’s binder in the background. Track it with the tasks API: poll the task until its status is COMPLETED.

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Troubleshooting

POST returns 413 or the upload is rejected
  • The file exceeds the size cap for its intent, or its type is not allowed by that intent’s validation policy. Use intent=client-document for client files.
PATCH returns 409 or 404
  • The Upload-Offset does not match the server’s current offset, or the upload ID has expired. Re-create the upload with a fresh POST.
createClient / addClientDocuments rejects an upload ID
  • The upload was never completed (no successful PATCH), belongs to a different workspace, or has expired. Re-upload and use the new ID.