Hi,
Some queries that used to work fine with the new API, no longer appear to be working.
For example, if I wanted to query for materials with 3-5 elements, I would perform the following query:
from mp_api.client import MPRester
with MPRester(NEW_API_KEY) as mpr:
docs = mpr.summary.search(num_elements = (3,5), fields = ['material_id'])
When I ran this query about a week ago, it ran perfectly fine. But as of yesterday, this no longer works and gives the following error message.
Error message
MPRestError Traceback (most recent call last) Cell In [8], line 3 1 from mp_api.client import MPRester 2 with MPRester(API_KEY) as mpr: ----> 3 docs = mpr.summary.search(num_elements=(3,5),fields=['material_id'])File ~/.local/lib/python3.9/site-packages/mp_api/client/routes/summary.py:287, in SummaryRester.search(self, band_gap, chemsys, crystal_system, density, deprecated, e_electronic, e_ionic, e_total, efermi, elastic_anisotropy, elements, energy_above_hull, equilibrium_reaction_energy, exclude_elements, formation_energy, formula, g_reuss, g_voigt, g_vrh, has_props, has_reconstructed, is_gap_direct, is_metal, is_stable, k_reuss, k_voigt, k_vrh, magnetic_ordering, material_ids, n, num_elements, num_sites, num_magnetic_sites, num_unique_magnetic_sites, piezoelectric_modulus, poisson_ratio, possible_species, shape_factor, spacegroup_number, spacegroup_symbol, surface_energy_anisotropy, theoretical, total_energy, total_magnetization, total_magnetization_normalized_formula_units, total_magnetization_normalized_vol, uncorrected_energy, volume, weighted_surface_energy, weighted_work_function, sort_fields, num_chunks, chunk_size, all_fields, fields)
277 query_params.update(
278 {“_sort_fields”: “,”.join([s.strip() for s in sort_fields])}
279 )
281 query_params = {
282 entry: query_params[entry]
283 for entry in query_params
284 if query_params[entry] is not None
285 }
→ 287 return super()._search(
288 num_chunks=num_chunks,
289 chunk_size=chunk_size,
290 all_fields=all_fields,
291 fields=fields,
292 **query_params
293 )
File ~/.local/lib/python3.9/site-packages/mp_api/client/core/client.py:920, in BaseRester._search(self, num_chunks, chunk_size, all_fields, fields, **kwargs)
897 “”"
898 A generic search method to retrieve documents matching specific parameters.
899
(…)
915 A list of documents.
916 “”"
917 # This method should be customized for each end point to give more user friendly,
918 # documented kwargs.
→ 920 return self._get_all_documents(
921 kwargs,
922 all_fields=all_fields,
923 fields=fields,
924 chunk_size=chunk_size,
925 num_chunks=num_chunks,
926 )
File ~/.local/lib/python3.9/site-packages/mp_api/client/core/client.py:969, in BaseRester._get_all_documents(self, query_params, all_fields, fields, chunk_size, num_chunks)
955 list_entries = sorted(
956 (
957 (key, len(entry.split(“,”)))
(…)
964 reverse=True,
965 )
967 chosen_param = list_entries[0][0] if len(list_entries) > 0 else None
→ 969 results = self._query_resource(
970 query_params,
971 fields=fields,
972 parallel_param=chosen_param,
973 chunk_size=chunk_size,
974 num_chunks=num_chunks,
975 )
977 return results[“data”]
File ~/.local/lib/python3.9/site-packages/mp_api/client/core/client.py:294, in BaseRester._query_resource(self, criteria, fields, suburl, use_document_model, parallel_param, num_chunks, chunk_size, timeout)
291 if not url.endswith(“/”):
292 url += “/”
→ 294 data = self._submit_requests(
295 url=url,
296 criteria=criteria,
297 use_document_model=use_document_model,
298 parallel_param=parallel_param,
299 num_chunks=num_chunks,
300 chunk_size=chunk_size,
301 timeout=timeout,
302 )
304 return data
306 except RequestException as ex:
File ~/.local/lib/python3.9/site-packages/mp_api/client/core/client.py:556, in BaseRester._submit_requests(self, url, criteria, use_document_model, parallel_param, num_chunks, chunk_size, timeout)
553 remaining -= crit[“_limit”]
555 # Submit requests and process data
→ 556 data_tuples = self._multi_thread(use_document_model, params_list, pbar, timeout)
558 for data, _, _ in data_tuples:
559 total_data[“data”].extend(data[“data”])
File ~/.local/lib/python3.9/site-packages/mp_api/client/core/client.py:625, in BaseRester._multi_thread(self, use_document_model, params_list, progress_bar, timeout)
621 finished, futures = wait(futures, return_when=FIRST_COMPLETED)
623 for future in finished:
→ 625 data, subtotal = future.result()
627 if progress_bar is not None:
628 progress_bar.update(len(data[“data”]))
File ~/.conda/envs/ml_materials/lib/python3.9/concurrent/futures/_base.py:439, in Future.result(self, timeout)
437 raise CancelledError()
438 elif self._state == FINISHED:
→ 439 return self.__get_result()
441 self._condition.wait(timeout)
443 if self._state in [CANCELLED, CANCELLED_AND_NOTIFIED]:
File ~/.conda/envs/ml_materials/lib/python3.9/concurrent/futures/_base.py:391, in Future.__get_result(self)
…
729 f"on URL {response.url} with message:\n{message}"
730 )
MPRestError: REST query returned with error status code 500 on URL https://api.materialsproject.org/summary/?nelements_min=3&nelements_max=5&_limit=1000&_fields=material_id&_skip=9000 with message:
Internal Server Error
Other queries appear to be working perfectly fine such as the one below:
with MPRester(NEW_API_KEY) as mpr:
docs = mpr.summary.search(material_ids=['mp-1069538','mp-540839'])
Would anyone be able to try the first query and see if it works fine on their end?