private handleResponse()

in uui-core/src/services/ApiContext.ts [218:287]
60 lines of code
15 McCabe index (conditional complexity)

    private handleResponse(call: ApiCall, response: Response) {
        call.finishedAt = new Date();
        call.httpStatus = response.status;
        if (response.ok) {
            this.analyticsCtx?.sendEvent(
                {
                    name: 'timing_complete',
                    parameters: {
                        value: call.finishedAt.getTime() - call.startedAt.getTime(),
                        name: call.name,
                        event_category: window.location.pathname,
                    },
                },
                'apiTiming',
            );

            if (response.status === 204) {
                return this.resolveCall(call, null);
            }

            call.options.parseResponse(response)
                .then((result) => {
                    call.responseData = result;
                    this.resolveCall(call, result);
                })
                .catch((e) => {
                    if (e?.name === 'AbortError') {
                        this.removeFromQueue(call);
                        return;
                    }

                    /* Problem with response JSON parsing */
                    call.status = 'error';
                    this.setStatus('error');
                    call.reject(e);
                });
        } else if (
            /* Network and server-related problems. We'll ping the server and then retry the call in this case. */
            (response.status === 408
                || /* Request Timeout */ response.status === 420
                || /* Enhance Your Calm */ response.status === 429
                || /* Too Many Requests */ response.status === 502
                || /* Bad Gateway */ response.status === 503
                || /* Service Unavailable */ response.status === 504)
            && /* Gateway Timeout */ call.attemptsCount < 2 /*
                    There can be cases, when server returns some of these states, while /ping works.
                    To not enter infinite loop in this case, we limit number of retries.
                */
        ) {
            let reason: ApiRecoveryReason = 'connection-lost';
            if (response.status === 420 || response.status === 429) {
                reason = 'server-overload';
            }
            if (response.status === 503) {
                reason = 'maintenance';
            }

            this.handleApiError(call, reason);
        } else if (response.status === 401) {
            /* Authentication cookies invalidated */ this.handleApiError(call, 'auth-lost');
        } else {
            // Try to parse response
            call.options.parseResponse(response)
                .catch(() => null) // Ignore parsing errors
                .then((result) => {
                    call.responseData = result;
                    this.handleApiError(call);
                });
        }
    }