python - cleanest way to glue generated Flask app code (Swagger-Codegen) to backend implementation -


i have:

  1. a library [stuff]
  2. a swagger api definition, #1 minor differences map cleanly rest service
  3. a flask app generated #2 using swagger-codegen - eg results in python controller functions one-to-one #1.

my intent flask app (all generated code) should handle mapping actual rest api , parameter parsing match api spec coded in swagger. after parameter parsing (again, generated code) should call directly on (non-generated) backend.

my question is, how best hook these without hand-editing generated python/flask code? (feedback on design, or details of formal design pattern accomplishes great too; i'm new space).

fresh generator, end python functions like:

def create_task(mytaskdefinition):     """     comment specified in swagger.json     :param mytaskdefinition: json blah blah blah     :type mytaskdefinition: dict | bytes     :rtype: apiresponse     """     if connexion.request.is_json:         mytaskdefinition = mytasktypefromswagger.from_dict(connexion.request.get_json())     return 'do magic!' # swagger codegen inserts string :)

on backend have actual logic:

def create_task_backend(mytaskdefinition):     # hand-coded, checked git: things     return apiresponse(...)

what right way create_task() call create_task_backend()?

of course if make breaking changes swagger spec have hand-update non-generated code regardless; there many reasons may want re-generate api (say, add/refine mytasktypefromswagger class, or skip checking git generated code @ all) , if have hand-edit generated api code, edits blown away each re-generation.

of course script ~simple grammar in eg. pyparsing; while first time issue, seems it's been solved already!

i tempted use swagger-codegen before , ran same conundrum. fine until update spec. although can use custom templates, seemed lot of overhead , maintenance, when want design first api.

i ended using connexion instead, uses swagger specification automatically handle routing, marshaling, validation, etc. connexion built on flask, not need worry switching frameworks or anything, benefit of portions of application being automatically handled swagger instead of having maintain auto-generated code.


Comments

Post a Comment

Popular posts from this blog

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

javascript - Z-index in d3.js -

i have map , when hover effect on region of map below yellow line , circle, last ones disappear. how can solve problem? http://jsfiddle.net/ot21n9qx/ var arc = g.append("path") .style("fill", "none") .style("stroke", "yellow") .style("stroke-width", 2) .attr("d", "m" + pathorigin[0] + "," + pathorigin[1] + " q" + svgpoint[0] + "," + pathorigin[1] + " " + svgpoint[0] + "," + svgpoint[1]); var circlesize = d3.scale.linear() .domain([0, 0.5, 1]) .range([4, 10, 4]); svg not have z order draws objects in order created. need create path , circle after create highlight regions. here forked fiddle: http://jsfiddle.net/o00fzgaf/1/
Read more