app/routes.py

from flask import Flask, jsonify, request
from utils import predict_single, predict_batch

app = Flask(__name__)


@app.route('/')
@app.route('/home')
def status():
    return jsonify({'status': 'ok'})


@app.route('/predict', methods=['POST'])
def predict():
    data = request.get_json()

    if 'text' not in data:
        return jsonify({'error': 'Missing "text" parameter'}), 400
    
    tweets = data['text']

    if len(tweets) == 1:
        response = predict_single(tweets[0])
    elif len(tweets) > 1:
        response = predict_batch(tweets)
    else:
        return jsonify({'error': 'Zero text strings posted'}), 400

    return jsonify({
        'inputs': tweets,
        'predictions': response
        })