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"""
Module to hold the entrypoint functions that generate heatmaps
"""
import io
from flask import jsonify
from flask import request
from flask import Blueprint
from gn3.heatmaps import build_heatmap
from gn3.db_utils import database_connector
heatmaps = Blueprint("heatmaps", __name__)
@heatmaps.route("/clustered", methods=("POST",))
def clustered_heatmaps():
"""
Parses the incoming data and responds with the JSON-serialized plotly figure
representing the clustered heatmap.
"""
traits_names = request.get_json().get("traits_names", tuple())
if len(traits_names) < 2:
return jsonify({
"message": "You need to provide at least two trait names."
}), 400
conn, _cursor = database_connector()
def parse_trait_fullname(trait):
name_parts = trait.split(":")
return "{dataset_name}::{trait_name}".format(
dataset_name=name_parts[1], trait_name=name_parts[0])
traits_fullnames = [parse_trait_fullname(trait) for trait in traits_names]
with io.StringIO() as io_str:
_filename, figure = build_heatmap(traits_fullnames, conn)
figure.write_json(io_str)
fig_json = io_str.getvalue()
return fig_json, 200
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