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

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"

{
  "Code": 100,
  "Message": "Unknown error occur in system, please contact system administrator.",
  "Details": [],
  "Parameters": "…",
  "Url": "https://app{server-number}.timelog.com/{account}/api/v1/project-expense/{expenseID}/image"
}

POST

/v1/project-expense/{expenseID}/image

POST

Base URLstring

Target server for requests. Edit to use your own host.

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.

path

expenseIDinteger

Required

The project expense to attach to. An employee-expense ID is rejected (500 Code 100): the loader filters on the project category.

Format: int32

Request Preview

Response

Response will appear here after sending the request

Authentication

header

Authorizationstring

Required

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.

Path Parameters

expenseIDinteger

Required

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*

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