feat(ofrep): implement bulk evaluation for OFREP

[erka]

resolves #3332

[codecov]

Codecov Report

Attention: Patch coverage is 83.73984% with 20 lines in your changes missing coverage. Please review.

Project coverage is 64.55%. Comparing base (03b1358) to head (3d972aa).

Files	Patch %	Lines
internal/server/ofrep/evaluation.go	81.66%	6 Missing and 5 partials ⚠️
internal/server/ofrep/errors.go	80.95%	2 Missing and 2 partials ⚠️
internal/server/evaluation/ofrep_bridge.go	88.23%	1 Missing and 1 partial ⚠️
internal/server/ofrep/middleware.go	91.66%	1 Missing and 1 partial ⚠️
internal/cmd/http.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3364      +/-   ##
==========================================
+ Coverage   64.42%   64.55%   +0.13%     
==========================================
  Files         172      172              
  Lines       13824    13871      +47     
==========================================
+ Hits         8906     8955      +49     
+ Misses       4234     4230       -4     
- Partials      684      686       +2     

Flag	Coverage Δ
unittests	64.55% <83.73%> (+0.13%)	⬆️

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[erka]

I don't have an idea how it is possible to add integration test for this. Go ofrep provider doesn't support bulk operation at the moment.

This is a minimal setup for ofrep-web

import { OFREPWebProvider } from "@openfeature/ofrep-web-provider";
import { OpenFeature } from "@openfeature/web-sdk";

const ctx = { targetingKey: "fruit", flags: "variant-flag,boolean-flag" };
const o = new OFREPWebProvider(
  { baseUrl: "http://host.docker.internal:8080" },
  console
);

OpenFeature.setContext(ctx);
await OpenFeature.setProviderAndWait(o);

const result = OpenFeature.getClient().getStringValue("variant-flag", "default");

console.log("result", result);

OpenFeature.close();

[markphelps]

Looks great @erka ! Thank you very much!!

I made one minor update here: erka#20 , lmk what you think

[markphelps]

Looks great! We could add ITs for the bulk eval endpoints using plain HTTP/REST in a future PR