excon
Spyke
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excon
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Use Rails
A internal network boundary is probably worth it for heavy jobs, since you usually don't want it to interfere with serving web requests (no matter the tech).
You probably already know what I would say to each of those examples.
> Rails timing out after 30s while allocating 500MB of memory (mostly) in ActiveRecord to compute 5MB of JSON to return to an API caller.
I can make a JS or Go program perform the same way. In fact the exact same thing happened in my shop with Go/Gorm. The key question is: how do you compute the 5mb of JSON? The devil is in those details. We changed the way we computed ours, and the issue was gone.
> 90% of request latency of ~10s spent waiting for downstream services to respond to requests. Most of these could be fired off concurrently (ie `Promise.all` in node). 9s/10s this Rails worker is sitting around doing nothing and eating up ~300MB of memory.
This sounds broken. Why is the worker doing nothing for 9 out of 10s? But like I said earlier, there are a bunch of ways to use HTTP1.1 pipelining to run them concurrently. (https://github.com/excon/excon and https://github.com/HoneyryderChuck/httpx support it, but you can also do that with Net::HTTP I believe) And you can still start threads, which are still concurrent while blocking on IO.
> trying to extract out Authorization to a centralized service (so that other extracted services don't have to call into the monolith in order to make authorization decisions) is a major pain as the monolith now has to make calls out to the centralized auth system to in order to make authz decisions.
This seems unrelated to Rails. Not sure why monolith can't continue handling authorization.
Spyke
We haven't tracked posts mentioning Spyke yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
Faraday - Simple, but flexible HTTP client library, with support for multiple backends.
Http Client - 'httpclient' gives something like the functionality of libwww-perl (LWP) in Ruby.
httparty - :tada: Makes http fun again!
Sawyer - Secret User Agent of HTTP
Typhoeus - Typhoeus wraps libcurl in order to make fast and reliable requests.
RESTClient - Simple HTTP and REST client for Ruby, inspired by microframework syntax for specifying actions.
HTTP - HTTP (The Gem! a.k.a. http.rb) - a fast Ruby HTTP client with a chainable API, streaming support, and timeouts