Upload trailer document

POST

api

{version}

trailers

{trailerId}

document

Upload trailer document

curl --request POST \
  --url https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form File=@example-file \
  --form 'DocumentType=<string>' \
  --form 'FileName=<string>'

const form = new FormData();
form.append('File', '<string>');
form.append('DocumentType', '<string>');
form.append('FileName', '<string>');

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document"

files = { "File": ("example-file", open("example-file", "rb")) }
payload = {
    "DocumentType": "<string>",
    "FileName": "<string>"
}
headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($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://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

{
  "id": "<string>",
  "AttachmentPath": "<string>",
  "AttachmentType": "<string>",
  "ParentId": "<string>",
  "ParentType": "<string>",
  "AttachmentSize": 123,
  "UploadedAt": "2023-11-07T05:31:56Z",
  "UploadedBy": "<string>",
  "DownloadUrl": "<string>",
  "ExpiresAt": "2023-11-07T05:31:56Z"
}

{
  "Errors": {},
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

Upload multipart/form-data. One file per request. Max file size 10 MB. Allowed document types: Motor Vehicle Record, Vehicle Image, Inspection Certificate, Certificate of Insurance (COI), Insurance Certificate, Other Documents. Allowed MIME types: application/pdf, image/jpeg, image/png. Upload a document to a specific trailer. Supports multipart/form-data. Each request must contain exactly one file.

Max file size: 25 MB
Allowed MIME types: application/pdf, image/jpeg, image/png
Allowed Document Types: Motor Vehicle Record, Vehicle Image, Inspection Certificate, Certificate of Insurance (COI), Insurance Certificate, Other Documents

Parameters

Parameter	In	Type	Required	Description
`trailerId`	path	string	Yes	Unique identifier of trailer
`version`	path	string	Yes	API version (e.g., `1.0`)

Documents cannot be uploaded to an external trailer. An external trailer is a carrier’s equipment recorded against a trip, not an asset you manage, so this endpoint answers 404 Not Found for one — the same as the truck and driver document endpoints do. Read CompanyOwnedAsset from Get trailer first if you need to check.A small number of older external records carry no ownership value and are still accepted by this endpoint. Do not rely on the refusal as a completeness guarantee.

Request Body

multipart/form-data

Parameter	Type	Required	Description
`File`	binary	Yes	The file to upload (PDF, JPEG, PNG). Max size 25 MB.
`FileName`	string	No	Optional custom filename (if omitted, filename is taken from multipart part)
`DocumentType`	string	Yes	The type of document. Must match one of the allowed document types.

Example Request (cURL)

curl -X POST "{{host}}/api/p/v1/trailers/{trailerId}/document" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: multipart/form-data" \
  -F "File=@COI.pdf" \
  -F "DocumentType=Certificate of Insurance (COI)"

Response Body

Name	Type	Description
`id`	string	Unique identifier of the uploaded document
`AttachmentPath`	string	File name/path assigned on upload + timestamp suffix (e.g., `1757343192`)
`AttachmentType`	string	Type of document (matches `DocumentType`)
`AttachmentSize`	integer	Size of the file in bytes
`UploadedAt`	string	UTC timestamp when the file was uploaded (ISO 8601)
`ParentId`	string	Identifier of the parent entity (the `{trailerId}`)
`ParentType`	string	Entity type the document is attached to (`Trailer`)

Example Response

200 OK

{
  "id": "c3f0a7d2-005e-4903-a4ee-45ca5e86411a",
  "AttachmentPath": "COI-1757343192.pdf",
  "AttachmentType": "Certificate of Insurance (COI)",
  "AttachmentSize": 1048576,
  "UploadedAt": "2025-09-09T08:26:03.194Z",
  "ParentId": "trl-12345",
  "ParentType": "Trailer"
}

On the right side, you can see examples of different error codes by clicking Example and selecting the response code.

Rate Limits

All endpoints are subject to rate limits to protect the API from traffic spikes. For detailed information, see the Rate Limits section.

Try It Out

This page is interactive, allowing you to try a request by specifying the API version and trailerId in the URL path. As you fill out the parameters, the cURL command on the right side of the page will be automatically updated. Alternatively, you can directly edit the cURL command. ⚠️ Don’t forget: make sure to authorize yourself before trying a request.

Authorizations

Authorization

string

header

required

OAuth 2.0 client-credentials access token. Obtain one from https://auth.alvys.com/oauth/token (grant_type=client_credentials, audience=https://api.alvys.com/public/), then paste it here. The playground sends it as Authorization: Bearer <token>.

Path Parameters

trailerId

string

required

version

string

default:1.0

required

API version (e.g., 1.0)

Example:

"1.0"

Body

multipart/form-data

File

file

required

DocumentType

string

required

Minimum string length: 1

FileName

string | null

Response

string

required

AttachmentPath

string

required

AttachmentType

string

required

ParentId

string

required

ParentType

string

required

AttachmentSize

integer<int64> | null

UploadedAt

string<date-time> | null

UploadedBy

string | null

DownloadUrl

string | null

ExpiresAt

string<date-time> | null

⌘I

Upload trailer document

curl --request POST \
  --url https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form File=@example-file \
  --form 'DocumentType=<string>' \
  --form 'FileName=<string>'

const form = new FormData();
form.append('File', '<string>');
form.append('DocumentType', '<string>');
form.append('FileName', '<string>');

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document"

files = { "File": ("example-file", open("example-file", "rb")) }
payload = {
    "DocumentType": "<string>",
    "FileName": "<string>"
}
headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($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://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://integrations.alvys.com/api/p/v{version}/trailers/{trailerId}/document")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"File\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"DocumentType\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"FileName\"\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

{
  "id": "<string>",
  "AttachmentPath": "<string>",
  "AttachmentType": "<string>",
  "ParentId": "<string>",
  "ParentType": "<string>",
  "AttachmentSize": 123,
  "UploadedAt": "2023-11-07T05:31:56Z",
  "UploadedBy": "<string>",
  "DownloadUrl": "<string>",
  "ExpiresAt": "2023-11-07T05:31:56Z"
}

{
  "Errors": {},
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

{
  "Type": "<string>",
  "Title": "<string>",
  "Status": 123,
  "Detail": "<string>",
  "Instance": "<string>"
}

​Parameters

​Request Body

​Example Request (cURL)

​Response Body

​Example Response

​Rate Limits

​Try It Out

Authorizations

Path Parameters

Body

Response

Parameters

Request Body

Example Request (cURL)

Response Body

Example Response

Rate Limits

Try It Out