HTTPError when downloading AHN

[OnnoEbbens]

The eclipse server, that is used to get ahn tiles, seems to be unreliable. I often get a HTTPError but I don't always get it. My gut feeling is that I get it about 50% of the time which is too much for me. I know there has been some updates to the get_ahn function recently (#371, #370). Maybe @bdestombe and @rubencalje know an easy fix for this?

Full error:

HTTPError                                 Traceback (most recent call last)
Cell In[20], [line 2](vscode-notebook-cell:?execution_count=20&line=2)
      [1](vscode-notebook-cell:?execution_count=20&line=1) # get ahn
----> [2](vscode-notebook-cell:?execution_count=20&line=2) ds["ahn"] = nlmod.read.ahn.get_ahn(ds, cachedir=resultdir, cachename="ahn")["ahn"]

File ~\02_python\nlmod\nlmod\cache.py:236, in cache_netcdf.<locals>.decorator.<locals>.wrapper(cachedir, cachename, *args, **kwargs)
    [233](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:233)         return cached_ds
    [235](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:235) # create cache
--> [236](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:236) result = func(*args_adj, **kwargs_adj)
    [237](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:237) logger.info(f"caching data -> {cachename}")
    [239](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:239) if isinstance(result, xr.DataArray):
    [240](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:240)     # set the DataArray as a variable in a new Dataset

File ~\02_python\nlmod\nlmod\read\ahn.py:60, in get_ahn(ds, identifier, method, extent, **kwargs)
     [58](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:58) if extent is None and ds is not None:
     [59](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:59)     extent = get_extent(ds)
---> [60](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:60) ahn_ds_raw = _get_ahn_ellipsis(extent, identifier=identifier, **kwargs)
     [61](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:61) ahn_ds_raw = ahn_ds_raw.drop_vars("band")
     [63](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:63) if ds is None:

File ~\02_python\nlmod\nlmod\cache.py:123, in cache_netcdf.<locals>.decorator.<locals>.wrapper(cachedir, cachename, *args, **kwargs)
    [119](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:119) @functools.wraps(func)
    [120](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:120) def wrapper(*args, cachedir=None, cachename=None, **kwargs):
    [121](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:121)     # 1 check if cachedir and name are provided
    [122](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:122)     if cachedir is None or cachename is None:
--> [123](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:123)         return func(*args, **kwargs)
    [125](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:125)     if not cachename.endswith(".nc"):
    [126](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/cache.py:126)         cachename += ".nc"

File ~\02_python\nlmod\nlmod\read\ahn.py:576, in _get_ahn_ellipsis(extent, identifier, **kwargs)
    [559](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:559) @cache.cache_netcdf()
    [560](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:560) def _get_ahn_ellipsis(extent, identifier="AHN5_5M_M", **kwargs):
    [561](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:561)     """Download AHN5.
    [562](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:562) 
    [563](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:563)     Parameters
   (...)
    [574](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:574)         DataArray of the AHN
    [575](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:575)     """
--> [576](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:576)     tiles = _get_tiles_ellipsis(extent=extent, **kwargs)
    [577](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:577)     if identifier not in tiles.columns:
    [578](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:578)         raise (ValueError(f"Unknown ahn-identifier: {identifier}"))

File ~\02_python\nlmod\nlmod\read\ahn.py:314, in _get_tiles_ellipsis(extent, crs, timeout, base_url, path_id, timestamp_id)
    [312](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:312) r = requests.get(url, timeout=timeout)
    [313](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:313) if not r.ok:
--> [314](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:314)     raise (HTTPError(f"Request not successful: {r.url}"))
    [315](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:315) gdf = gpd.GeoDataFrame.from_features(r.json()["result"]["features"], crs=4326)
    [316](https://file+.vscode-resource.vscode-cdn.net/c%3A/Users/oebbe/02_python/gxg_berging/~/02_python/nlmod/nlmod/read/ahn.py:316) gdf = gdf.to_crs(crs)

HTTPError: Request not successful: https://api.ellipsis-drive.com/v3/path/a9d410ad-a2f6-404c-948a-fdf6b43e77a6/vector/timestamp/87a21a71-c39f-4e92-a43b-207bc7dfe714/listFeatures