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refactor: add
ApiErrorArrayHandler to handler response of custom er…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| const { getInternalServerErrorMessage, getNotFoundErrorMessage } = require("@root/utils/errorResponse/errorResponseMessage"); | ||
| const { ApiLogger } = require("@root/utils/logs/api-logger"); | ||
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| class DicomWebServiceErrorHandler { | ||
|
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| static doErrorResponse(response, e) { | ||
| return response.status(e.code).json({ | ||
| status: e.status, | ||
| message: e.message | ||
| }); | ||
| } | ||
| } | ||
|
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| class NotFoundInstanceErrorHandler { | ||
| static doErrorResponse(response, e) { | ||
| response.writeHead(404, { | ||
| "Content-Type": "application/dicom+json" | ||
| }); | ||
| return response.end(JSON.stringify(getNotFoundErrorMessage(e.message))); | ||
| } | ||
| } | ||
|
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| class InstanceGoneErrorHandler { | ||
| static doErrorResponse(response, e) { | ||
| response.writeHead(410, { | ||
| "Content-Type": "application/dicom+json" | ||
| }); | ||
| return response.end(JSON.stringify({ | ||
| Details: e.message, | ||
| HttpStatus: 410, | ||
| Message: "Image Gone", | ||
| Method: "GET" | ||
| })); | ||
| } | ||
| } | ||
|
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| class InvalidFrameNumberErrorHandler { | ||
| static doErrorResponse(response, e) { | ||
| response.writeHead(400, { | ||
| "Content-Type": "application/dicom+json" | ||
| }); | ||
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| return response.end(JSON.stringify({ | ||
| Details: e.message, | ||
| HttpStatus: 400, | ||
| Message: "Bad request", | ||
| Method: "GET" | ||
| })); | ||
| } | ||
| } | ||
|
|
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| const ApiErrorHandlerMapping = { | ||
| "DicomWebServiceError": DicomWebServiceErrorHandler, | ||
| "NotFoundInstanceError": NotFoundInstanceErrorHandler, | ||
| "InstanceGoneError": InstanceGoneErrorHandler, | ||
| "InvalidFrameNumberError": InvalidFrameNumberErrorHandler | ||
| }; | ||
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| class ApiErrorArrayHandler { | ||
| /** | ||
| * @param {import("express").Response} res | ||
| * @param {ApiLogger} apiLogger | ||
| * @param {Error} e | ||
| */ | ||
| constructor(res, apiLogger, e) { | ||
| this.response = res; | ||
| /** @type {ApiLogger} */ | ||
| this.apiLogger = apiLogger; | ||
| /** @type {Error} */ | ||
| this.error = e; | ||
| } | ||
|
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| doErrorResponse() { | ||
| if (this.isCustomError(this.error)) { | ||
| this.apiLogger.logger.error(this.error); | ||
| return ApiErrorHandlerMapping[this.error.name].doErrorResponse(this.response, this.error); | ||
| } else { | ||
| ApiErrorArrayHandler.raiseInternalServerError(this.error, this.response, this.apiLogger); | ||
| } | ||
| } | ||
|
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| /** | ||
| * | ||
| * @param {import("express").Response} response | ||
| * @param {ApiLogger} apiLogger | ||
| * @param {Error} e | ||
| */ | ||
| static raiseInternalServerError(response, apiLogger, e) { | ||
| apiLogger.logger.error(e); | ||
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| if (!response.headersSent) { | ||
| response.writeHead(500, { | ||
| "Content-Type": "application/dicom+json" | ||
| }); | ||
| return response.json(getInternalServerErrorMessage("An exception occurred")); | ||
| } | ||
| return response.end(); | ||
| } | ||
|
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| isCustomError(e) { | ||
| return Object.keys(ApiErrorHandlerMapping).find(key => e.name === key); | ||
| } | ||
| } | ||
|
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| module.exports.ApiErrorArrayHandler = ApiErrorArrayHandler; |
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