Quick and Dirty utility to merge swagger.json files for microservices.

merge.py

import json
from collections import OrderedDict
from operator import itemgetter
import requests
import sys
if len(sys.argv) < 2:
    print("Usage : python merge.py [http(s)://path_to_swagger_json(s)]")
    sys.exit(-1)
# Loop through the URLs
files = list()
for arg in sys.argv[1:]:
    files.append(json.loads(requests.get(arg).text))
# We set the header of the final file.
# This gets pulled from the first file in the list
final = OrderedDict()
final['swagger'] = files[0]['swagger']
final['info'] = files[0]['info']
final['basePath'] = files[0]['basePath']
# Next we pull out the tags, paths and definitions
tags = list()
definitions = dict()
paths = dict()
for file in files:
    tags = tags + file['tags']
    definitions.update(file['definitions'])
    paths.update(file['paths'])
# Sort the paths
sortedPaths = OrderedDict()
for key in sorted(paths.keys()):
    sortedPaths[key] = paths[key]
final['paths'] = sortedPaths
# Sort the tags
tags.sort(key=itemgetter('name'))
final['tags'] = tags
# Add definitions
final['definitions'] = definitions
print(json.dumps(final))