storage

Generate presigned POST data for direct browser upload

Issue a presigned POST (fields + url) for clients to upload directly to S3. The server stores the issued key with expiry and RBAC is enforced.

POST/api/files/upload/presigned

Authentication

Requires JWT Requires API Key JWT or API Key
Note
This endpoint accepts either JWT Bearer token or API Key. Use Authorization: Bearer YOUR_TOKEN for user context, or X-API-Key: YOUR_KEY for server-to-server. View authentication guide →Include your JWT in the Authorization: Bearer YOUR_TOKEN header (user-facing apps, RBAC). View authentication guide →Include your API key in the X-API-Key: YOUR_KEY header (server-to-server, SDKs). View authentication guide →

Request Body

projectId, originalName, optional bucket, contentType, isPublic.

json
{
  "projectId": "proj_qh5hFHNT70YZ",
  "bucket": "interface calculate",
  "originalName": "Ms. Freda Romaguera III",
  "contentType": "sensor program",
  "isPublic": false
}
{
  "projectId": "proj_qh5hFHNT70YZ",
  "bucket": "interface calculate",
  "originalName": "Ms. Freda Romaguera III",
  "contentType": "sensor program",
  "isPublic": false
}

SDK setup

Create a client and set credentials (JWT and/or API key) before calling the API. Match the authentication type shown above.

import { MudbaseClient } from "mudbase";

const client = new MudbaseClient();
client.setJWT("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c3JfbW9yZ2FuX2RlIiwiZW1haWwiOiJtb3JnYW4uY2hlbkBub3J0aHdpbmQuZGV2IiwiZXhwIjoxODI1MTI5NjAwfQ.doc_preview_sig");
import { MudbaseClient } from "mudbase";

const client = new MudbaseClient();
client.setJWT("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c3JfbW9yZ2FuX2RlIiwiZW1haWwiOiJtb3JnYW4uY2hlbkBub3J0aHdpbmQuZGV2IiwiZXhwIjoxODI1MTI5NjAwfQ.doc_preview_sig");

Example request

Call this endpoint using the client from SDK setup. Use View HTTP for a raw cURL example.

const result = await client.storage.getPresignedUpload({
  projectId: "proj_TuTvwPTwA40X",
  originalName: "Nellie Blick",
  bucket: "microchip index",
  contentType: "program transmit",
  isPublic: true
});
const result = await client.storage.getPresignedUpload({
  projectId: "proj_TuTvwPTwA40X",
  originalName: "Nellie Blick",
  bucket: "microchip index",
  contentType: "program transmit",
  isPublic: true
});

Try It Live

Test this endpoint with your own credentials. Your requests will be sent to the live API.

Get your API key from the console
Use the auth endpoints to obtain a JWT.

No Request Yet

Send a request to see the full inspector

Responses

200Presigned POST data
json
{
  "key": "65a1b2c3d4e5f6789012345a/default/abcd-1234-invoice.pdf",
  "url": "https://my-bucket.s3.amazonaws.com/",
  "fields": {
    "key": "65a1b2c3d4e5f6789012345a/default/abcd-1234-invoice.pdf",
    "Policy": "BASE64_POLICY",
    "X-Amz-Signature": "signature"
  },
  "expiresIn": 3600
}
{
  "key": "65a1b2c3d4e5f6789012345a/default/abcd-1234-invoice.pdf",
  "url": "https://my-bucket.s3.amazonaws.com/",
  "fields": {
    "key": "65a1b2c3d4e5f6789012345a/default/abcd-1234-invoice.pdf",
    "Policy": "BASE64_POLICY",
    "X-Amz-Signature": "signature"
  },
  "expiresIn": 3600
}
400Bad request or validation error.
401Authentication required or invalid token.
403Access denied or insufficient permissions.
429Rate limit exceeded.
500Internal server error.

Errors

CodeMeaning
400Bad request or validation error.
401Authentication required or invalid token.
403Access denied or insufficient permissions.
429Rate limit exceeded.
500Internal server error.

Next steps

Edit this page on GitHub