Upload a file for an attachment field

Upload file bytes as multipart/form-data under file and return { id, name, size, mime, key, uploadedAt }.

POST/v1/tables/{tableId}/files

Request

curl --request POST \
  --url 'https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files' \
  --header 'Authorization: Bearer <token>'

import json
import requests

url = "https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files"
headers = {
  "Authorization": "Bearer <token>"
}

response = requests.request("POST", url, headers=headers)
print(response.json())

const response = await fetch("https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files", {
  method: "POST",
  headers: {
    "Authorization": "Bearer <token>"
  },
});

const data = await response.json();
console.log(data);

<?php
$client = curl_init();

curl_setopt($client, CURLOPT_URL, "https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files");
curl_setopt($client, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($client, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer <token>",
]);
curl_setopt($client, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($client);
curl_close($client);
echo $response;

package main

import (
  "fmt"
  "io"
  "net/http"
)

func main() {
  req, _ := http.NewRequest("POST", "https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files", nil)
  req.Header.Set("Authorization", "Bearer <token>")
  res, _ := http.DefaultClient.Do(req)
  defer res.Body.Close()
  data, _ := io.ReadAll(res.Body)
  fmt.Println(string(data))
}

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

var request = HttpRequest.newBuilder(URI.create("https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files"))
    .header("Authorization", "Bearer <token>")
    .method("POST", HttpRequest.BodyPublishers.noBody())
    .build();

var response = HttpClient.newHttpClient().send(
    request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

require 'net/http'
require 'json'

uri = URI("https://your-suite.grid82.app/your-app/v1/tables/<tableId>/files")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = "Bearer <token>"

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == "https") do |http|
  http.request(request)
end

puts response.body

application/json

{
  "data": {
    "id": "<string>",
    "name": "<string>",
    "size": 123.45,
    "mime": "<string>",
    "key": "<string>",
    "uploadedAt": "<string>",
    "width": 123.45,
    "height": 123.45
  }
}

{
  "error": {
    "code": "not_found",
    "message": "<string>",
    "details": {}
  }
}

Set recordId to identify the record the file will belong to; unused uploads can be swept. Write the descriptor to an attachment field in a separate ordinary record write, with the same permission check, op log, and undo as any other value. Reject descriptors not returned by this operation: key identifies an R2 object, and inventing one could name someone else’s bytes.

Requires the records:write scope. Operation files.upload. Not an MCP tool. A model cannot send bytes: a tool call is JSON, and an upload is a multipart file. Upload with the CLI (--file ./path) or from the grid, then attach the returned descriptor with an ordinary record write, which is a tool. CLI: grid82 files upload (npx grid82).

Path parameters

Name	Type	Required	Description
`tableId`	string	yes

Headers

Name	Type	Required	Description
`Idempotency-Key`	string	no	Any unique string. Sending the same key with the same request again returns the first response (marked `Idempotency-Replayed: true`) instead of running it twice. Reusing it for a different request is refused with 409. Kept for 24 hours. Up to 255 characters.

Request body

Sent as multipart/form-data.

Field	Type	Required	Description
`file`	string	yes	The bytes.
`recordId`	string	yes	The record the file will be attached to, so an upload never attached can be swept.

Response

application/json

Success

dataobjectrequired

Show child attributes

data.idstringrequired

data.namestringrequired

data.sizenumberrequired

data.mimestringrequired

data.keystringrequired

data.uploadedAtstringrequired

data.widthnumber

data.heightnumber

{ "data": { "id": "<string>", "name": "<string>", "size": 123.45, "mime": "<string>", "key": "<string>", "uploadedAt": "<string>", "width": 123.45, "height": 123.45 } }

Upload a file for an attachment field

Path parameters

Headers

Request body

Response

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