> ## Documentation Index
> Fetch the complete documentation index at: https://developers.lucca.fr/llms.txt
> Use this file to discover all available pages before exploring further.

# Export from Lucca Timesheet

> Learn how to use the export feature of Lucca Timesheet through the API. In particular, **how to generate a new export and retrieve its content**.

<Warning>
  Please note the creation of a new export through the API is synchronous.
  As a result, the HTTP request may time out if there's a lot of data.
</Warning>

<Tip>
  Make sure your API key can create exports in Lucca Timesheet.
</Tip>

<Steps>
  <Step title="Preliminaries">
    You first need to retrieve the **export-configuration identifier**.

    The export-configuration identifier `exportConfigurationId` is the second integer URL path parameter
    when browsing the graphical interface for Lucca Timesheet export feature. For example, if the UI URL looks
    like this when browsing to the export-configuration: `https://example.ilucca.net/timmi-timesheet/legacy-settings#/export/1/3/latest`,
    then the identifier is `3`.

    Then, you may want to retrieve the **identifier of the latest successful export**, it will
    help you track the progress of any new export you'll then create. This can be achieved through the API:

    <CodeGroup>
      ```json Get latest export id theme={null}
      GET /api/v3/timmiexports?configurationId={configurationId}&orderBy=createdAt,desc,id,desc&archivedAt=null&paging=0,1&fields=id,createdat HTTP/1.1
      Host: example.ilucca.net
      Authorization: lucca application={API_TOKEN}
      Accept: application/json
      {
        "data": {
          "items": [
            {
              "id": 289,
              "createdAt": "2021-01-01T08:45:32Z"
            } 
          ]
        }
      }
      ```
    </CodeGroup>
  </Step>

  <Step title="Trigger an export">
    When creating an export, two parameters are required:

    1. A date-time `endsAt`, which indicates that all elements prior to it should be exported. Format is `YYYY-MM-DDT00:M00:00` (time component must be equal to midnight).
    2. An export-configuration ID `configurationId` (cf "preliminaries" above).

    <Tip>
      Chose the `endsAt` date carefully when creating a payroll variables export, as you may have calculation rules that handle time on a weekly basis (triggered on sundays).
      If so, consider exporting on a Monday at midnight (i.e. "00:00:00") rather than on the first day of the next month.
    </Tip>

    Then, you can forge the following HTTP request:

    <CodeGroup>
      ```json Create export theme={null}
      POST /api/v3/timmiexports/run?fields=id HTTP/1.1
      Host: example.ilucca.net
      Authorization: lucca application={API_KEY}
      Content-Type: application/json
      Accept: application/json
      {
        "endsAt": {date},
        "configurationId": {exportConfigurationId}
      }
      ```
    </CodeGroup>

    <Warning>
      The export creation is a synchronous process. As a result, the server will only respond once the export has been fully and successfully generated.
      This can take some time, and even time out. Your safest bet is to abort the connexion, and track the export creation progress by polling (cf. below).
    </Warning>
  </Step>

  <Step title="Track export progress">
    In order to figure out if the export is complete or not, you can poll the server with the following HTTP request
    (you need the `lastExportId` and `exportConfigurationId` retrieved in the "preliminaries" step):

    <CodeGroup>
      ```json Export is complete theme={null}
      GET /api/v3/timmiexports?configurationId={configurationId}&id=greaterthan,{lastExportId}&archivedAt=null&fields=id,createdat HTTP/1.1
      Host: example.ilucca.net
      Authorization: lucca application={API_KEY}
      Accept: application/json
      {
        "data": {
          "items": [
            {
              "id": 290,
              "createdAt": "2021-02-01T12:23:12Z"
            }
          ]
      }
      ```

      ```json Export is ongoing or has failed theme={null}
      GET /api/v3/timmiexports?configurationId={configurationId}&id=greaterthan,{lastExportId}&archivedAt=null&fields=id,createdat HTTP/1.1
      Host: example.ilucca.net
      Authorization: lucca application={API_KEY}
      Accept: application/json
      {
        "data": {
          "items": []
        }
      }
      ```
    </CodeGroup>

    <Tip>If the export was successful, then take note of its id: `generatedExportId = data.items[0].id`.</Tip>

    <Warning>
      Problem is: you will never know if the export has actually failed.

      Therefore, you may try creating (cf. step #2) a new export again after an arbitrary
      amount of time (say, one hour) has passed, but your polling requests still return
      an empty `items` array, as your previous request has probably failed.
    </Warning>
  </Step>

  <Step title="Retrieve the export content">
    If the export was successfully created, you may retrieve its content with the following HTTP request:

    <CodeGroup>
      ```json Get export content theme={null}
      GET /api/v3/api/v3/timmiexports/{generatedExportId}?fields=id,name,createdAt,configurationId,startsAt,endsAt,exportFiles,entries[id,name,amount,amountUnit,externalCode,endsAt,owner[id,lastName,firstName],timeType[id,name,payTreatment],axisSections[id,name,code,axisId,active,startOn,endOn]] HTTP/1.1
      Host: example.ilucca.net
      Authorization: lucca application={API_KEY}
      Content-Type: application/json
      Accept: application/json
      ```
    </CodeGroup>
  </Step>
</Steps>