@defra/wls-eps-web-service/src/handlers/error-handler.js

The web service for wildlife licencing of European Protected Species

import { ERRORS } from '../uris.js'

/**
 * Handle 400 and 500 errors
 * @param request
 * @param h
 * @returns {string|((key?: IDBValidKey) => void)|*}
 */
export const errorHandler = async (request, h) => {
  if (!request.response.isBoom) {
    return h.continue
  }

  if (request?.response?.output?.statusCode === 404) {
    /*
     * 404 page not found errors
     */
    return h
      .view(ERRORS.NOT_FOUND.page)
      .code(200)
  } else {
    // other 4xx or 5xx errors
    const requestDetail = {
      url: request.url,
      path: request.path,
      query: request.query,
      params: request.params,
      payload: request.payload,
      headers: request.headers,
      state: request.state,
      method: request.method,
      output: request?.response?.output?.payload,
      stack: request?.response?.stack
    }

    const journeyData = await request.cache().getData()
    console.error('Error processing request. Request: %j, userId: %s, applicationId: %s',
      requestDetail,
      journeyData?.userId,
      journeyData?.applicationId)
    return h.view(ERRORS.SERVICE_ERROR.page).code(200)
  }
}