loopbackio/strong-error-handler

Support custom jsonSerializer

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#8 opened on May 11, 2016

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Description

See https://github.com/strongloop/loopback/issues/1650#issuecomment-161920555

  // a custom JSON serializer function for producing JSON response bodies
  // @param sanitizedData: response data containing only safe properties
  // @param originalError: the original Error object
  jsonSerializer: function(sanitizedData, originalError) {
    if (originalError.name === 'ValidationError') {
      var details = sanitizedData.details || {};
      sanitizedData.issueCount =  details.codes && Object.keys(details.codes).length;
    }
    return sanitizedData;
  }

Contributor guide

Research direction
Implement the jsonSerializer option in the error handler configuration, allowing users to customize the JSON serialization of error responses. Start by adding an option to the middleware factory function, then call it before sending the response, ensuring it receives sanitized data and the original error object.
Tech stack
javascriptnodejs
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptNode.js
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70