explaingit

fieldju/backstopper

Analysis updated 2026-07-17 · repo last pushed 2021-12-20

Audience · developerComplexity · 3/5DormantSetup · moderate

TLDR

A Java library that standardizes API error responses so every error is consistent, traceable, and never leaks stack traces.

Mindmap

mindmap
  root((backstopper))
    What it does
      Standardizes error format
      Hides stack traces
      Adds unique error IDs
    Tech stack
      Java
      Spring Boot
      Jersey
    Use cases
      Consistent REST API errors
      Shared error sets across microservices
      Auto-convert validation failures
    Audience
      Backend developers
      API teams
    Setup
      Define error enum
      Integrate with framework

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Return a consistent, predictable error format across every API endpoint.

USE CASE 2

Automatically convert Java validation annotation failures into standard API errors.

USE CASE 3

Give every error a unique ID that ties the API response to detailed application logs.

USE CASE 4

Share a common set of core errors across multiple microservices.

What is it built with?

JavaSpring BootJerseySpring WebFlux

How does it compare?

fieldju/backstopper00kaku/gallery-slider-block04amanrajj/netwatch
Stars——0
Language—JavaScriptRust
Last pushed2021-12-202021-05-19—
MaintenanceDormantDormant—
Setup difficultymoderateeasymoderate
Complexity3/52/53/5
Audiencedevelopergeneralops devops

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 1h+

Requires defining your full set of API errors up front and wiring the framework integration.

The README does not state a license.

Copy-paste prompts

Prompt 1
Show me how to define a custom error enum for Backstopper in a Spring Boot API.
Prompt 2
Help me integrate Backstopper with Jersey so validation failures return standard errors.
Prompt 3
How do I set up Backstopper so every API error includes a unique lookup ID in the logs?
Prompt 4
Write a shared 'core errors' setup in Backstopper that multiple microservices can reuse.

Frequently asked questions

What is backstopper?

A Java library that standardizes API error responses so every error is consistent, traceable, and never leaks stack traces.

Is backstopper actively maintained?

Dormant — no commits in 2+ years (last push 2021-12-20).

What license does backstopper use?

The README does not state a license.

How hard is backstopper to set up?

Setup difficulty is rated moderate, with roughly 1h+ to a first successful run.

Who is backstopper for?

Mainly developer.

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