workspellcheckerapi.py

import win32com.client
from flask import Flask, request, jsonify


def get_corrections(text, language=1033):
    # See https://technet.microsoft.com/en-us/library/cc179219.aspx for a list of language ids
    word = win32com.client.Dispatch('Word.Application')
    word.Visible = True
    wordDoc = word.Documents.Add()
    wordDoc.Range().LanguageID = language
    wordDoc.Range().Text = text
    corrections = {'spelling': [],
                   'grammar': [],
                   'spellingcount': 0,
                   'grammarcount': 0,
                   'text': text}
    def rng_to_dict(rng):
        d = {'text': rng.Text, 'start': rng.Start, 'end': rng.End, 'suggestions': []}
        for i in range(1, rng.GetSpellingSuggestions().Count+1):
            d['suggestions'].append(rng.GetSpellingSuggestions().Item(i).Name)
        return d
    for rng in wordDoc.Range().SpellingErrors:
        corrections['spelling'].append(rng_to_dict(rng))
        corrections['spellingcount'] += 1
    for rng in wordDoc.Range().GrammaticalErrors:
        corrections['grammar'].append(rng_to_dict(rng))
        corrections['grammarcount'] += 1
    wordDoc.Close(SaveChanges=0)
    word.Quit()
    return corrections


app = Flask(__name__)


@app.route("/spellcheck/", methods=['GET', 'POST'])
def spellcheck():
    language = request.args.get('language') or request.form.get('language') or 1033
    text = request.args.get('text') or request.form.get('text') or ''
    print(language, text)
    return jsonify(get_corrections(text, language))


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