**App Error. End user experiences a failed checkout. End user submits feedback about not being happy.**

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Issues
ANDROID-G5
All Envs
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**Sentry provides an easily readable stack trace - It shows an unminified version of the stack trace.**  

MainFragment$BackendAPIException
Failed to init delivery workflow
com.example.vu.android.empowerplant.MainFragment in processDeliveryItem at line 382
In App
377
        Log.i("processDeliveryItem", "processDeliveryItem >>>");
378
        ISpan processDeliverySpan = checkoutTransaction.startChild("task", "process delivery");
379
380
        try {
381
            Log.e("processDeliveryItem", "ERROR");
382
            throw new MainFragment.BackendAPIException("Failed to init delivery workflow");
Open this line in GitHub
Open in Codecov
383
        } catch (Exception e) {
384
            processDeliverySpan.setThrowable(e);
385
            processDeliverySpan.setStatus(SpanStatus.INTERNAL_ERROR);
386
            Sentry.captureException(e);
387
        }
com.example.vu.android.empowerplant.MainFragment in access$200 at line 59
In App
com.example.vu.android.empowerplant.MainFragment$3$1 in run at line 319
In App
Called from: android.os.Handler in handleCallback
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package com.example.vu.android.empowerplant;

import static java.nio.charset.StandardCharsets.UTF_8;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import org.jetbrains.annotations.NotNull;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;

import io.sentry.Attachment;
import io.sentry.ISpan;
import io.sentry.ITransaction;
import io.sentry.Sentry;
import io.sentry.SpanStatus;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

import com.example.vu.android.R;



/**
 * A simple {@link Fragment} subclass.
 * Use the {@link MainFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class MainFragment extends Fragment implements StoreItemAdapter.ItemClickListener {
    protected List<StoreItem> empowerStoreItems = new ArrayList<StoreItem>();
    private DividerItemDecoration dividerItemDecoration;
    private HashMap<String, StoreItem> selectedStoreItems;
    protected StoreItemAdapter adapter;
    ProgressDialog progressDialog = null;
    public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
    public String END_POINT_PRODUCTS = "/products";
    public String END_POINT_CHECKOUT = "/checkout";

Here is the error we were reviewing in Sentry

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**Sentry provides a suggestion powered by AI**

**The suggestion tells us there is a problem with a function that is related to the backend.**

Hey there! Looks like you've got an error in your code. Let's take a look, shall we?

Problem Description

So, it seems that your app encountered a MainFragment$BackendAPIException with the message "Failed to init delivery workflow". Ouch, that doesn't sound good. The issue occurred in the processDeliveryItem method of the MainFragment class at line 382. The code before the error shows some logging statements and an attempt to start a child span. However, things went south and your code throws the BackendAPIException.

The stack trace also reveals that the error originates from the run method in an anonymous inner class (MainFragment$3$1). It seems like this is where the processDeliveryItem method is called and the exception is thrown. The error then propagates up through various methods until it reaches the main method in the ActivityThread class.

Proposed Solution

To fix this issue, you'll need to handle the BackendAPIException properly in your code. You can catch the exception in the processDeliveryItem method and set the appropriate status and throwable on the processDeliverySpan. You should also consider capturing the exception with Sentry for further analysis.

Here's an example of how the fixed code could look like:

try {
    // Your code here...
} catch (MainFragment.BackendAPIException e) {
    processDeliverySpan.setThrowable(e);
    processDeliverySpan.setStatus(SpanStatus.INTERNAL_ERROR);
    Sentry.captureException(e);
}

You need to place this code within the processDeliveryItem method, where the exception is currently being thrown.

What Else

Keep in mind that handling exceptions properly is crucial for maintaining the stability and reliability of your app. Make sure to catch exceptions at the appropriate levels and handle them gracefully. Additionally, consider logging and monitoring exceptions using tools like Sentry to gain insights into your app's error patterns and improve its overall quality.

Remember, Sentry can't fix this, but you can! 😉

Roses are red,
Violets are blue,
Fix this erro

**Sentry also provides an insight into who might be the best person to solve this issue. Sentry pulls from the "Git Blame" API to retrieve who might be the best member to fix the issue**

Android Example - Troubleshooting Errors in Sentry - Ecommerce App