Attach images to a project expense
Uploads one or more images (JPEG, PNG, GIF, BMP, TIFF …) to an existing project expense, e.g. a scanned supplier invoice.
Send multipart/form-data with one part per image; every part is treated as a file (no form fields). Each part must decode as an image, else the whole call fails and nothing is stored. WARNING: unlike employee expenses, a project expense never lists its images — GET returns PDFs only in FileUrls — so an image attached here cannot be seen or deleted through the API afterwards. For supplier invoices, prefer the PDF endpoint. The expense must already exist: create it first, then attach.
Use it to:
- Accounts-payable / BPP integration attaching a scanned supplier invoice to the cost line it booked
Not for:
- PDF supplier invoices —
POST /v1/project-expense/{expenseID}/file(and the only attachments GET returns) - Employee receipts —
POST /v1/employee-expense/{employeeExpenseID}/image - Replacing an attachment — attach only appends
Behaviour:
- Not idempotent.
- Not safe to retry blindly. The API cannot show whether a lost call succeeded.
- Duplicates: Not deduplicated: the same image uploaded twice becomes two attachments.
- Changes are visible to the next read immediately.
- Batch: For validation of the current call only. Not transactional for storage failures.
Call first: POST /v1/project-expense
See also: POST /v1/project-expense/{expenseID}/file, DELETE /v1/project-expense/{expenseID}/image, POST /v1/employee-expense/{employeeExpenseID}/image
Not yet documented: examples; request → body → multipart → formats.
curl -X POST "https://app3.timelog.com/your-account/api/v1/project-expense/123/image" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_TOKEN"
import requests
import json
url = "https://app3.timelog.com/your-account/api/v1/project-expense/123/image"
headers = {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_API_TOKEN"
}
response = requests.post(url, headers=headers)
print(response.json())
const response = await fetch("https://app3.timelog.com/your-account/api/v1/project-expense/123/image", {
method: "POST",
headers: {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_API_TOKEN"
}
});
const data = await response.json();
console.log(data);
package main
import (
"fmt"
"net/http"
)
func main() {
req, err := http.NewRequest("POST", "https://app3.timelog.com/your-account/api/v1/project-expense/123/image", nil)
if err != nil {
panic(err)
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer YOUR_API_TOKEN")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
fmt.Println("Response Status:", resp.Status)
}
require 'net/http'
require 'json'
uri = URI('https://app3.timelog.com/your-account/api/v1/project-expense/123/image')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request['Authorization'] = 'Bearer YOUR_API_TOKEN'
response = http.request(request)
puts response.body
"null"
{
"error": "Bad Request",
"message": "The request contains invalid parameters or malformed data",
"code": 400,
"details": [
{
"field": "email",
"message": "Invalid email format"
}
]
}
{
"error": "Unauthorized",
"message": "Authentication required. Please provide a valid API token",
"code": 401
}
{
"error": "Not Found",
"message": "The requested resource was not found",
"code": 404
}
{
"error": "Error",
"message": "- **Code 415** — The request body is not a MIME multipart message. — When: Checked before the expense is loaded. — Fix: Send Content-Type multipart/form-data with one part per file.",
"code": 415
}
{
"error": "Internal Server Error",
"message": "An unexpected error occurred on the server",
"code": 500,
"requestId": "req_1234567890"
}
/v1/project-expense/{expenseID}/imageTarget server for requests. Edit to use your own host.
OAuth 2.0 bearer token, sent as Authorization: Bearer <token>. JWT and reference tokens are both accepted. The token must carry the required scope (default tlp).
The token's sub claim is the acting user. A token WITHOUT sub (client-credentials) acts as the system service user. If the sub user cannot log in (inactive, locked, deleted), the request is rejected with 401 — it is no longer let through without a user.
> Not yet documented: how to obtain a token.
> Not yet documented: token lifetime.
Authorization: Bearer <token>. JWT and reference tokens are both accepted. The token must carry the required scope (default tlp).
The token's sub claim is the acting user. A token WITHOUT sub (client-credentials) acts as the system service user. If the sub user cannot log in (inactive, locked, deleted), the request is rejected with 401 — it is no longer let through without a user.
> Not yet documented: how to obtain a token.
> Not yet documented: token lifetime.The project expense to attach to. An employee-expense ID is rejected (500 Code 100): the loader filters on the project category.
Request Preview
Response
Response will appear here after sending the request
Authentication
Bearer token. OAuth 2.0 bearer token, sent as Authorization: Bearer <token>. JWT and reference tokens are both accepted. The token must carry the required scope (default tlp).
The token's sub claim is the acting user. A token WITHOUT sub (client-credentials) acts as the system service user. If the sub user cannot log in (inactive, locked, deleted), the request is rejected with 401 — it is no longer let through without a user.
Not yet documented: how to obtain a token.
Not yet documented: token lifetime.
Path Parameters
The project expense to attach to. An employee-expense ID is rejected (500 Code 100): the loader filters on the project category.
Responses
*Success without content: HTTP 200 with the literal JSON body null. Body is the JSON literal null. The image is NOT visible afterwards in GET /v1/project-expense/{id}.
Order: none
Empty result: none*