Create app.py

app.py

@@ -0,0 +1,55 @@
+import streamlit as st
+from fhir.resources.observation import Observation
+from datetime import datetime
+import requests
+import json
+
+# FHIR server endpoint
+base_url = "https://<fhir_server_endpoint>/fhir/"
+
+# Function to create an Observation resource
+def create_observation_resource(activity, category, calories, duration, distance, heart_rate):
+    observation = Observation()
+    observation.status = "final"
+    observation.category = [{"coding": [{"system": "http://terminology.hl7.org/CodeSystem/observation-category",
+                                          "code": "activity"}]}]
+    observation.code = {"coding": [{"system": "http://loinc.org", "code": "55409-7", "display": "Exercise tracking panel"}]}
+    observation.effectiveDateTime = datetime.now().isoformat()
+    observation.component = []
+    if activity:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "73985-4", "display": "Exercise activity"}]}, "valueString": activity})
+    if category:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "73986-2", "display": "Exercise aerobic category"}]}, "valueString": category})
+    if calories:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "55421-2", "display": "Calories burned Machine estimate"}]}, "valueQuantity": {"value": calories, "unit": "kcal"}})
+    if duration:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "55411-3", "display": "Exercise duration"}]}, "valueQuantity": {"value": duration, "unit": "min"}})
+    if distance:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "55412-1", "display": "Exercise distance unspecified time"}]}, "valueQuantity": {"value": distance, "unit": "[mi_us];km"}})
+    if heart_rate:
+        observation.component.append({"code": {"coding": [{"system": "http://loinc.org", "code": "55422-0", "display": "Heart rate Encounter maximum"}]}, "valueQuantity": {"value": heart_rate, "unit": "{beats}/min"}})
+    return observation
+
+# Function to create an Observation resource on the FHIR server
+def create_observation(observation):
+    headers = {"Content-Type": "application/fhir+json"}
+    response = requests.post(base_url + "Observation", data=json.dumps(observation.as_json()), headers=headers)
+    if response.status_code == 201:
+        st.success("Observation created successfully!")
+    else:
+        st.error("Error creating Observation.")
+
+# Streamlit user interface
+def app():
+    st.title("LOINC Exercise Tracking Panel")
+    activity = st.text_input("Exercise activity")
+    category = st.selectbox("Exercise aerobic category", ["", "Aerobic", "Anaerobic"])
+    calories = st.number_input("Calories burned (Machine estimate)", min_value=0, step=1)
+    duration = st.number_input("Exercise duration (minutes)", min_value=0, step=1)
+    distance = st.number_input("Exercise distance unspecified time", min_value=0, step=0.01)
+    heart_rate = st.number_input("Heart rate Encounter maximum", min_value=0, step=1)
+
+if st.button("Record Exercise"):
+    observation = create_observation_resource(activity, category, calories, duration, distance, heart_rate)
+    create_observation(observation)
+