⬆️ (csmr-rie): use fetch instead of axios (third attempt) - #1124
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**Problem** `csmr-rie` was hardwired to axios with no way to swap the HTTP client without code changes. Native fetch avoids an extra dependency and uses `AbortSignal.timeout()` for per-request cancellation, but there was no abstraction to select the strategy at runtime. **Proposal** Introduce a `FetchHttpModule` that mirrors `HttpModule.registerAsync` and exposes `HttpService` backed by `FetchHttpService`. A strategy record keyed by `HttpClient` (`"axios" | "fetch"`) selects the active module at startup. The choice is driven by `USE_HTTP_CLIENT` env var, validated through `ConfigService`, defaulting to `"axios"`.
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Problem
csmr-riewas hardwired to axios with no way to swap the HTTP client without code changes. Native fetch avoids an extra dependency and usesAbortSignal.timeout()for per-request cancellation, but there was no abstraction to select the strategy at runtime.Proposal
Introduce a
FetchHttpModulethat mirrorsHttpModule.registerAsyncand exposesHttpServicebacked byFetchHttpService. A strategy record keyed byHttpClient("axios" | "fetch") selects the active module at startup. The choice is driven byUSE_HTTP_CLIENTenv var, validated throughConfigService, defaulting to"axios".Changes
FetchHttpService: native fetch wrapped asObservable<HttpResponse>, withAbortSignal.timeout(requestTimeout)thunk for per-request signalsFetchHttpModule.registerAsync: mirrorsHttpModule.registerAsyncAPI; injectsFETCH_FNtoken for testability without global mutationCsmrHttpProxyModule: strategy pattern — namedaxiosStrategy/fetchStrategyconstants,strategies[httpClient]lookup inregister()CsmrHttpProxyConfig:httpClientfield with@IsIn(["axios", "fetch"])validationapp.module.tsdeleted — unnecessary indirection for a single-feature apphybridge-rie.env: documentsUSE_HTTP_CLIENT=axiosdefault