app.py

import flask
from flask import render_template, request, send_file, jsonify
import json
import os
import io
import pandas as pd
import time
import warnings
import xport
import xpt_to_json
from xpt_to_json import *

warnings.filterwarnings("ignore")
app = flask.Flask(__name__)
app.secret_key = "Hello"


# global IE_base, domain, study_name, filetype, inputFile, path
@app.route("/")
def index():
    """Renders first page of application"""
    return render_template("JSON.html")


@app.route("/Navigation/<PageName>")
def Navigation(PageName):
    """Navigates between different pages of the application"""
    global currPage
    currPage = PageName
    return render_template(PageName + ".html")


@app.route("/generate_target_file/", methods=["GET", "POST"])
def generate_target_file():
    """
    Get the required inputs from the User (StudyName, Domain, FileType, Input File)
    Generate the target file based on User Input
    """
    # global IE_base, domain, study_name, filetype, inputFile, path
    if request.method == "POST":
        global filetype, inputFile, path, target, myfile, data, dict_, meta_dict
        filetype = request.form["filetype"]
        inputFile = request.files["sourcefile"]
        path = inputFile.filename
        inputFile.save(path)
        if filetype == "JSON":
            target, dict_, meta_dict = json_(path)
            message = "JSON is Generated successfully"

        if filetype == "NDJSON":
            target, dict_, meta_dict = ndjson_(path)
            message = "NDJSON is Generated successfully"

        print(target)
        # with open(target, "r") as myfile:
        #     data = myfile.read()
        # JSON = data.to_html(classes='table table-stripped')
    return render_template("JSON.html", message=message, targetdataset=target)


@app.route("/generate_target_file/JSONfile.html")
def JSONfile():
    data_d = {key: dict_[key] for key in ["rows"]}
    return render_template("JSONfile.html", title="JSON file", jsonfile=data_d)


@app.route("/generate_target_file/JSONMeta.html")
def JSONMeta():
    data_m = {
        key: dict_[key]
        for key in [
            "creationDateTime",
            "datasetJSONVersion",
            "fileOID",
            "name",
            "label",
            "originator",
            "sourceSystem",
            "sourceSystemVersion",
            "records",
            "columns",
            "metaDataRef",
            "itemGroupOID",
        ]
    }
    return render_template("JSONMeta.html", title="JSON file", jsonfile=data_m)


@app.route("/download_file/", methods=["GET", "POST"])
def download_file():
    """
    Download the Result files in XPT / JSON format
    """
    if request.method == "POST":
        # filetype = request.form.getlist('target_filetype')
        # filetype = request.form['target_filetype']
        return send_file(target, as_attachment=True)
        # elif i == 'ndjson':
        #     return send_file(filepath_json, as_attachment=True)


if __name__ == "__main__":
    app.run(debug=True)