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Location: NPO-Accounting/experimental-accounting-api/accounting/web.py - annotation
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Two-way conversion from internal representation and JSON
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import logging
import argparse
from flask import Flask, g, jsonify, json, request
from accounting import Ledger, Account, Posting, Transaction, Amount
from accounting.transport import AccountingEncoder, AccountingDecoder
app = Flask('accounting')
app.config.from_pyfile('config.py')
ledger = Ledger(ledger_file=app.config['LEDGER_FILE'])
# These will convert output from our internal classes to JSON and back
app.json_encoder = AccountingEncoder
app.json_decoder = AccountingDecoder
@app.route('/')
def index():
return 'Hello World!'
@app.route('/balance')
def balance_report():
''' Returns the balance report from ledger '''
report_data = ledger.bal()
return jsonify(balance_report=report_data)
@app.route('/parse-json', methods=['POST'])
def parse_json():
r'''
Parses a __type__-annotated JSON payload and debug-logs the decoded version
of it.
Example:
wget http://127.0.0.1:5000/balance -O balance.json
curl -X POST -H 'Content-Type: application/json' -d @balance.json \
http://127.0.0.1/parse-json
# Logging output (linebreaks added for clarity)
DEBUG:accounting:json data: {'balance_report':
[<Account "None" [
<Amount $ 0>, <Amount KARMA 0>]
[<Account "Assets" [
<Amount $ 50>, <Amount KARMA 10>]
[<Account "Assets:Checking" [
<Amount $ 50>] []>,
<Account "Assets:Karma Account" [
<Amount KARMA 10>] []>]>,
<Account "Expenses" [
<Amount $ 500>]
[<Account "Expenses:Blah" [
<Amount $ 250>]
[<Account "Expenses:Blah:Hosting" [
<Amount $ 250>] []>]>,
<Account "Expenses:Foo" [
<Amount $ 250>] [
<Account "Expenses:Foo:Hosting" [
<Amount $ 250>] []>]>]>,
<Account "Income" [
<Amount $ -550>,
<Amount KARMA -10>]
[<Account "Income:Donation" [
<Amount $ -50>] []>,
<Account "Income:Foo" [
<Amount $ -500>]
[<Account "Income:Foo:Donation" [
<Amount $ -500>] []>]>,
<Account "Income:Karma" [
<Amount KARMA -10>] []>]>]>]}
'''
app.logger.debug('json data: %s', request.json)
return jsonify(foo='bar')
@app.route('/register')
def register_report():
''' Returns the register report from ledger '''
report_data = ledger.reg()
return jsonify(register_report=report_data)
def main(argv=None):
prog = __name__
if argv is None:
prog = sys.argv[0]
argv = sys.argv[1:]
parser = argparse.ArgumentParser(prog=prog)
parser.add_argument('-v', '--verbosity',
default='INFO',
help=('Filter logging output. Possible values:' +
' CRITICAL, ERROR, WARNING, INFO, DEBUG'))
args = parser.parse_args(argv)
logging.basicConfig(level=getattr(logging, args.verbosity, 'INFO'))
app.run(host=app.config['HOST'], port=app.config['PORT'])
if __name__ == '__main__':
main()
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