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"""API for fetching metadata using an API"""
from http.client import RemoteDisconnected
from urllib.error import URLError
from flask import Blueprint
from flask import jsonify
from flask import current_app
from SPARQLWrapper import SPARQLWrapper
from gn3.db.rdf import get_dataset_metadata
from gn3.db.rdf import get_trait_metadata
metadata = Blueprint("metadata", __name__)
@metadata.route("/dataset/<name>", methods=["GET"])
def dataset_metadata(name):
"""Fetch a dataset's metadata given it's ACCESSION_ID"""
try:
return jsonify(
get_dataset_metadata(
SPARQLWrapper(current_app.config.get("SPARQL_ENDPOINT")),
name,
).data
)
# The virtuoso server is misconfigured or it isn't running at all
except (RemoteDisconnected, URLError):
return jsonify({})
@metadata.route("/dataset/<dataset_name>/trait/<trait_name>", methods=["GET"])
def trait_metadata(dataset_name, trait_name):
"""Fetch a trait's metadata given the trait_name and dataset_name'"""
try:
return jsonify(
get_trait_metadata(
SPARQLWrapper(current_app.config.get("SPARQL_ENDPOINT")),
trait_name, dataset_name
).data
)
# The virtuoso server is misconfigured or it isn't running at all
except (RemoteDisconnected, URLError):
return jsonify({})
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