Quickly create a fake API for testing client with Python and Flask.
Inspired by https://github.com/gchaincl/httplab seemed a bit heavyweight for my needs.
You can create responses in httplab.json file. "Responses" maps path to status, headers, body (content) returned (text or json). You can specify a delay for realisim.
| { | |
| "Headers": { | |
| "Server": "PyHttpLab" | |
| }, | |
| "Delay": 500, | |
| "Responses": { | |
| "": { | |
| "Status": 200, | |
| "Delay": 0, | |
| "Body": "home" | |
| }, | |
| "ok": { | |
| "Status": 200, | |
| "Delay": 0, | |
| "Body": "Hello, World", | |
| "Headers": { | |
| "X-Server": "HTTPLab" | |
| } | |
| }, | |
| "item/32": { | |
| "Status": 200, | |
| "Delay": 0, | |
| "Body": { | |
| "item": 32, | |
| "title": "item_32" | |
| } | |
| }, | |
| "create": { | |
| "Status": 201, | |
| "Delay": 1000, | |
| "Body": { | |
| "created": "ok" | |
| }, | |
| "Headers": { | |
| "Content-Type": "application/json" | |
| } | |
| }, | |
| "notfound": { | |
| "Status": 404, | |
| "Delay": 0, | |
| "Body": "Page Not Found", | |
| "Headers": {} | |
| } | |
| } | |
| } |
| # inspired by https://github.com/gchaincl/httplab | |
| import time | |
| from flask import Flask, json, jsonify, request, make_response | |
| app = Flask(__name__) | |
| with open("httplab.json") as f: | |
| config = json.load(f) | |
| indent = config["Indent"] if "Indent" in config else 2 | |
| common_headers = config["Headers"] if "Headers" in config else {} | |
| site_delay = config["Delay"] if "Delay" in config else 0 | |
| @app.route('/', defaults={'path': ''}) | |
| @app.route('/<path:path>') | |
| def catch_all(path): | |
| if path in config['Responses']: | |
| response = config['Responses'][path] | |
| else: | |
| response = { | |
| "Status": 404, | |
| "Body": "Page {} Not Found".format(path) | |
| } | |
| status = response["Status"] if "Status" in response else 200 | |
| body = response["Body"] if "Body" in response else {} | |
| page_headers = response["Headers"] if "Headers" in response else {} | |
| delay = response["Delay"] if "Delay" in response else site_delay | |
| if delay > 0: | |
| delay_secs = delay/1000.0 | |
| print("delay {} seconds", delay_secs) | |
| time.sleep(delay_secs) | |
| if isinstance(body, dict): | |
| resp = make_response(json.dumps(response["Body"], indent=indent), status) | |
| resp.headers['Content-Type'] = 'application/json; charset=utf-8' | |
| resp.headers['mimetype'] = 'application/json' | |
| elif isinstance(body, str): | |
| resp = make_response(response["Body"], status) | |
| else: | |
| resp = make_response("None", status) | |
| for key, val in common_headers.items(): | |
| resp.headers[key] = val | |
| for key, val in page_headers.items(): | |
| resp.headers[key] = val | |
| return resp | |
| if __name__ == "__main__": | |
| app.run(port=10080) |