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Privacy and breadcrumbs

note

Breadcrumb filtering is new in 7.0.0.

What breadcrumbs are​

Breadcrumbs are short structured records of what the app was doing in the lead-up to an issue — navigation, taps, lifecycle changes, network requests, system events. They are aggregated into the report timeline and surface in the Bugsee dashboard.

The SDK ships four built-in breadcrumb sources:

SourceExamples
AppApplication lifecycle (onCreate, foreground/background), low-memory warnings.
UIActivity / Fragment navigation, dialog open/close, gesture events.
NetworkHTTP request lifecycle entries — host, path, method, status, mechanism.
SystemConnectivity, battery, thermal, orientation, configuration changes.

Breadcrumb capture is on by default and is gated by the CaptureBreadcrumbs option — see configuration.

Disabling breadcrumb collection​

To turn off breadcrumb capture entirely, set CaptureBreadcrumbs to false in your manifest or programmatically:

<meta-data android:name="com.bugsee.option.capture.breadcrumbs"
           android:value="false" />

Most apps should keep capture on and use the filter below to scrub or drop only the entries that matter.

Filtering breadcrumbs​

Bugsee.setBreadcrumbFilter(EventFilter<Breadcrumb>) registers a single filter that is invoked for every breadcrumb the SDK is about to record — regardless of source. Pass the (possibly mutated) breadcrumb to the supplied callback to keep it, or pass null to drop it.

The filter shape mirrors setLogEventFilter and setNetworkEventFilter — the same generic EventFilter<T> interface, whose single filter(event, callback) method hands you the event and a Callback1 to invoke with the result.

HTTP-request breadcrumb URLs are emitted verbatim; opt into masking, PII redaction, or drop semantics through this filter (see the URL-masking example below).

The Breadcrumb interface (com.bugsee.library.contracts.exchange.Breadcrumb) exposes:

MethodPurpose
getCategory() / setCategory(String)Source category — typical values: "navigation", "user", "system", "business", "error".
getType() / setType(String)Sub-type within the category (for example http_request, gesture, lifecycle).
getMessage() / setMessage(String)Human-readable description.
getLevel() / setLevel(Breadcrumb.Level)One of DEBUG, INFO, WARNING, ERROR, FATAL.
getData() / setData(Map) / setData(key, value)Free-form key/value context map. HTTP-request breadcrumbs put url, method, status_code, mechanism, etc. here.
setTimestamp(long)Wall-clock milliseconds.

Examples​

Mask query-string tokens on HTTP-request breadcrumbs​

import com.bugsee.library.Bugsee;
import com.bugsee.library.contracts.exchange.Breadcrumb;

Bugsee.setBreadcrumbFilter((crumb, callback) -> {
    Map<String, Object> data = crumb.getData();
    if (data != null) {
        Object urlObj = data.get("url");
        if (urlObj instanceof String) {
            String url = (String) urlObj;
            if (url.contains("token=")) {
                crumb.setData("url",
                        url.replaceAll("token=[^&\\s]+", "token=[REDACTED]"));
            }
        }
    }
    callback.run(crumb); // callback.run(null) to drop the breadcrumb entirely
});

Drop noisy breadcrumb categories​

Bugsee.setBreadcrumbFilter((crumb, callback) -> {
    if ("system".equals(crumb.getCategory())
            && "battery".equals(crumb.getType())) {
        callback.run(null); // drop battery-state pings
        return;
    }
    callback.run(crumb);
});

Downgrade level for known-noisy entries​

Bugsee.setBreadcrumbFilter((crumb, callback) -> {
    String message = crumb.getMessage();
    if (message != null && message.startsWith("[heartbeat]")) {
        crumb.setLevel(Breadcrumb.Level.DEBUG);
    }
    callback.run(crumb);
});

Declaring the filter in the manifest​

You can also point Bugsee at a breadcrumb filter from AndroidManifest.xml, with no code. Add a com.bugsee.filter.breadcrumb <meta-data> whose value is a class that implements EventFilter<Breadcrumb> and has a public no-arg constructor. The benefit: the filter is in force from the very first captured event, even under auto-initialization, before any of your own code runs.

<application>
    <meta-data android:name="com.bugsee.filter.breadcrumb"
               android:value="com.example.MyBreadcrumbFilter" />
</application>
import androidx.annotation.Keep;
import com.bugsee.library.contracts.common.Callback1;
import com.bugsee.library.contracts.exchange.Breadcrumb;
import com.bugsee.library.contracts.exchange.EventFilter;

@Keep // referenced only by name in the manifest — keep it from R8
public class MyBreadcrumbFilter implements EventFilter<Breadcrumb> {
    public MyBreadcrumbFilter() { } // required public no-arg constructor

    @Override
    public void filter(Breadcrumb crumb, Callback1<Breadcrumb> callback) {
        if ("system".equals(crumb.getCategory())
                && "battery".equals(crumb.getType())) {
            callback.run(null); // drop battery-state pings
            return;
        }
        callback.run(crumb);
    }
}

A filter set in code with Bugsee.setBreadcrumbFilter(...) takes precedence over the manifest one. Because the class is referenced only by name, keep it from R8 — annotate it @Keep or add -keep class com.example.MyBreadcrumbFilter { <init>(); }.

The same mechanism is available for network events and logs.

Recording custom breadcrumbs​

Beyond the built-in sources, you can record your own breadcrumbs with Bugsee.addBreadcrumb(...) — see Breadcrumbs → Recording custom breadcrumbs. Custom breadcrumbs run through the filter you register here, exactly like the built-in ones.

Notes​

  • The filter is synchronous — it runs on the recording thread before the breadcrumb is persisted. Keep it allocation-light and fast; do not perform I/O.
  • Mutate the breadcrumb in place and pass the same instance to callback.run(...). Passing a different Breadcrumb implementation to the callback is not supported.
  • The filter is invoked for all sources. Use getCategory() / getType() to scope your logic per source (for example, only touch HTTP-request entries by checking category == "navigation" and type == "http_request").
  • Network events (the entries surfaced in the network tab of the report) are scrubbed separately via setNetworkEventFilter. The breadcrumb filter only affects the breadcrumb timeline.
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