flatten_es_schema.py

#!/usr/bin/env python

import json

def dump(fields, pfx=None):
    if pfx is None:
        pfx = []
    for field, attribs in sorted(fields.items()):
        if 'properties' in attribs:
            dump(attribs['properties'], pfx + [field])
        if 'type' in attribs:
            print(".".join(pfx + [field + ": " + attribs['type']]))


def main():
    with open('tmpl.json') as f:
        mappings = json.load(f)['mappings']['doc']['properties']
        dump(mappings)


main()