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POST
/
v2
/
memory
/
knowledge
/
upload-url
Get Upload URL
curl --request POST \
  --url https://api.velt.dev/v2/memory/knowledge/upload-url \
  --header 'Content-Type: application/json' \
  --header 'x-velt-api-key: <x-velt-api-key>' \
  --header 'x-velt-auth-token: <x-velt-auth-token>' \
  --data '
{
  "data": {
    "mimeType": "<string>",
    "fileSize": 123,
    "fileName": "<string>",
    "organizationId": "<string>",
    "documentId": "<string>"
  }
}
'
import requests

url = "https://api.velt.dev/v2/memory/knowledge/upload-url"

payload = { "data": {
"mimeType": "<string>",
"fileSize": 123,
"fileName": "<string>",
"organizationId": "<string>",
"documentId": "<string>"
} }
headers = {
"x-velt-api-key": "<x-velt-api-key>",
"x-velt-auth-token": "<x-velt-auth-token>",
"Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
method: 'POST',
headers: {
'x-velt-api-key': '<x-velt-api-key>',
'x-velt-auth-token': '<x-velt-auth-token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
data: {
mimeType: '<string>',
fileSize: 123,
fileName: '<string>',
organizationId: '<string>',
documentId: '<string>'
}
})
};

fetch('https://api.velt.dev/v2/memory/knowledge/upload-url', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
CURLOPT_URL => "https://api.velt.dev/v2/memory/knowledge/upload-url",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'data' => [
'mimeType' => '<string>',
'fileSize' => 123,
'fileName' => '<string>',
'organizationId' => '<string>',
'documentId' => '<string>'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"x-velt-api-key: <x-velt-api-key>",
"x-velt-auth-token: <x-velt-auth-token>"
],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
package main

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

func main() {

url := "https://api.velt.dev/v2/memory/knowledge/upload-url"

payload := strings.NewReader("{\n \"data\": {\n \"mimeType\": \"<string>\",\n \"fileSize\": 123,\n \"fileName\": \"<string>\",\n \"organizationId\": \"<string>\",\n \"documentId\": \"<string>\"\n }\n}")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("x-velt-api-key", "<x-velt-api-key>")
req.Header.Add("x-velt-auth-token", "<x-velt-auth-token>")
req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.velt.dev/v2/memory/knowledge/upload-url")
.header("x-velt-api-key", "<x-velt-api-key>")
.header("x-velt-auth-token", "<x-velt-auth-token>")
.header("Content-Type", "application/json")
.body("{\n \"data\": {\n \"mimeType\": \"<string>\",\n \"fileSize\": 123,\n \"fileName\": \"<string>\",\n \"organizationId\": \"<string>\",\n \"documentId\": \"<string>\"\n }\n}")
.asString();
require 'uri'
require 'net/http'

url = URI("https://api.velt.dev/v2/memory/knowledge/upload-url")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-velt-api-key"] = '<x-velt-api-key>'
request["x-velt-auth-token"] = '<x-velt-auth-token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"data\": {\n \"mimeType\": \"<string>\",\n \"fileSize\": 123,\n \"fileName\": \"<string>\",\n \"organizationId\": \"<string>\",\n \"documentId\": \"<string>\"\n }\n}"

response = http.request(request)
puts response.read_body
{
  "result": {
    "uploadUrl": "https://storage.googleapis.com/...signed...",
    "fileRef": "gs://bucket/path/original.pdf",
    "expiresAt": 1731432600000
  }
}
Use this API to mint a short-lived signed URL for uploading a file up to 30 MB. Use it for the by-reference ingestion flow: get the URL, PUT the raw file bytes to it, then pass the returned fileRef to Ingest Knowledge.

Endpoint

POST https://api.velt.dev/v2/memory/knowledge/upload-url

Headers

x-velt-api-key
string
required
Your API key.
x-velt-auth-token
string
required

Body

Params

data
object
required

Example Requests

Request an upload URL for a PDF

{
  "data": {
    "mimeType": "application/pdf",
    "fileSize": 8421376,
    "fileName": "brand-guidelines.pdf"
  }
}

Response

Upload the raw file bytes to uploadUrl with an HTTP PUT, then pass fileRef to Ingest Knowledge. The URL expires at expiresAt (epoch ms).

Success Response

{
  "result": {
    "uploadUrl": "https://storage.googleapis.com/...signed...",
    "fileRef": "gs://bucket/path/original.pdf",
    "expiresAt": 1731432600000
  }
}

Failure Response

{
  "error": {
    "message": "ERROR_MESSAGE",
    "status": "INVALID_ARGUMENT"
  }
}
{
  "result": {
    "uploadUrl": "https://storage.googleapis.com/...signed...",
    "fileRef": "gs://bucket/path/original.pdf",
    "expiresAt": 1731432600000
  }
}