UISACQCOMP-219 Create common utilities for managing response errors

CHANGELOG.md

@@ -23,6 +23,7 @@
 * ECS - Display all consortium tenants in the affiliation selection of the location lookup. Refs UISACQCOMP-202.
 * ECS - Add `isLoading` prop for `ConsortiumFieldInventory` component. Refs UISACQCOMP-215.
 * Add "Amount must be a positive number" validation for "Set exchange rate" field. Refs UISACQCOMP-218.
+* Create common utilities for managing response errors. Refs UISACQCOMP-219.
 
 ## [5.1.2](https://github.com/folio-org/stripes-acq-components/tree/v5.1.2) (2024-09-13)
 [Full Changelog](https://github.com/folio-org/stripes-acq-components/compare/v5.1.1...v5.1.2)

lib/utils/errorHandling/ResponseErrorContainer.js

@@ -0,0 +1,45 @@
+import { ERROR_CODE_GENERIC } from '../../constants';
+
+/**
+ * @class ResponseErrorContainer
+ * @description A container class for handling individual errors from a response.
+ * @param {Object} error - The error object containing details such as message, code, type, and parameters.
+ */
+export class ResponseErrorContainer {
+  constructor(error = {}) {
+    this.error = error;
+  }
+
+  get message() {
+    return this.error.message;
+  }
+
+  get code() {
+    return this.error.code || ERROR_CODE_GENERIC;
+  }
+
+  get type() {
+    return this.error.type;
+  }
+
+  get parameters() {
+    return this.error.parameters;
+  }
+
+  /**
+   * @description Convert the error parameters into a Map.
+   * @returns {Map<string, Object>} A Map where the keys are parameter keys and the values are the parameter objects.
+   */
+  getParameters() {
+    return new Map(this.error.parameters?.map((parameter) => [parameter.key, parameter]));
+  }
+
+  /**
+   * @description Get a specific parameter value by its key.
+   * @param {string} key - The key of the parameter to retrieve.
+   * @returns {any} The value of the specified parameter, or undefined if not found.
+   */
+  getParameter(key) {
+    return this.getParameters().get(key)?.value;
+  }
+}

lib/utils/errorHandling/ResponseErrorContainer.test.js

@@ -0,0 +1,66 @@
+/* Developed collaboratively using AI (GitHub Copilot) */
+
+import { ERROR_CODE_GENERIC } from '../../constants';
+import { ResponseErrorContainer } from './ResponseErrorContainer';
+
+describe('ResponseErrorContainer', () => {
+  it('should return message, code, and type from error', () => {
+    const errorData = {
+      message: 'Test error message',
+      code: 'testCode',
+      type: 'testType',
+    };
+    const errorContainer = new ResponseErrorContainer(errorData);
+
+    expect(errorContainer.message).toBe('Test error message');
+    expect(errorContainer.code).toBe('testCode');
+    expect(errorContainer.type).toBe('testType');
+  });
+
+  it('should return undefined if no message or type is provided, and the generic code', () => {
+    const errorContainer = new ResponseErrorContainer();
+
+    expect(errorContainer.message).toBeUndefined();
+    expect(errorContainer.code).toBe(ERROR_CODE_GENERIC);
+    expect(errorContainer.type).toBeUndefined();
+  });
+
+  it('should return parameters map if parameters are provided', () => {
+    const errorData = {
+      parameters: [
+        { key: 'param1', value: 'value1' },
+        { key: 'param2', value: 'value2' },
+      ],
+    };
+    const errorContainer = new ResponseErrorContainer(errorData);
+
+    const parametersMap = errorContainer.getParameters();
+
+    expect(parametersMap.size).toBe(2);
+    expect(parametersMap.get('param1').value).toBe('value1');
+    expect(parametersMap.get('param2').value).toBe('value2');
+  });
+
+  it('should return an empty map if no parameters are provided', () => {
+    const errorContainer = new ResponseErrorContainer();
+
+    const parametersMap = errorContainer.getParameters();
+
+    expect(parametersMap.size).toBe(0);
+  });
+
+  it('should return parameter value for a given key', () => {
+    const errorData = {
+      parameters: [{ key: 'param1', value: 'value1' }],
+    };
+    const errorContainer = new ResponseErrorContainer(errorData);
+
+    expect(errorContainer.getParameter('param1')).toBe('value1');
+  });
+
+  it('should return undefined if parameter key is not found', () => {
+    const errorContainer = new ResponseErrorContainer();
+
+    expect(errorContainer.getParameter('nonexistentKey')).toBeUndefined();
+  });
+});

lib/utils/errorHandling/ResponseErrorsContainer.js

@@ -0,0 +1,149 @@
+import { ERROR_CODE_GENERIC } from '../../constants';
+import { ResponseErrorContainer } from './ResponseErrorContainer';
+
+const ERROR_MESSAGE_GENERIC = 'An unknown error occurred';
+
+/**
+ * @class
+ * @description Container for response errors
+ * @param {Object} responseBody - Response body
+ * @param {Response} response - Response
+ */
+export class ResponseErrorsContainer {
+  /* private */ constructor(responseBody, response) {
+    this.originalResponseBody = responseBody;
+    this.originalResponse = response;
+
+    // Initialize the map of errors
+    this.errorsMap = new Map(
+      responseBody.errors?.reduce((acc, error) => {
+        const errorContainer = this.getStructuredError(error);
+
+        acc.push([errorContainer.code || ERROR_CODE_GENERIC, errorContainer]);
+
+        return acc;
+      }, []),
+    );
+
+    this.totalRecords = responseBody.total_records;
+  }
+
+  /**
+   * @static
+   * @description Create a new instance of ResponseErrorsContainer.
+   * @param {Response} response - The Response object from which to create the error handler.
+   * @returns {Promise<{handler: ResponseErrorsContainer}>} A promise that resolves to an object containing the error handler.
+   */
+  static async create(response) {
+    try {
+      const responseBody = await response.clone().json();
+
+      return {
+        handler: (
+          responseBody?.errors
+            ? new ResponseErrorsContainer(responseBody, response)
+            : new ResponseErrorsContainer({ errors: [responseBody], total_records: 1 }, response)
+        ),
+      };
+    } catch (error) {
+      return {
+        handler: new ResponseErrorsContainer({ errors: [error], total_records: 1 }, response),
+      };
+    }
+  }
+
+  /**
+   * @description Handle the errors using a given strategy.
+   * @param {Object} strategy - The error handling strategy to be applied.
+   */
+  handle(strategy) {
+    return strategy.handle(this);
+  }
+
+  get status() {
+    return this.originalResponse?.status;
+  }
+
+  /**
+   * @description Get an array of error messages.
+   * @returns {Array<string | undefined>} An array of error messages.
+   */
+  get errorMessages() {
+    return this.errors.map((error) => error.message);
+  }
+
+  /**
+   * @description Get an array of error codes.
+   * @returns {Array<string | undefined>} An array of error codes.
+   */
+  get errorCodes() {
+    return this.errors.map((error) => error.code);
+  }
+
+  /**
+   * @description Get all errors as an array.
+   * @returns {Array<ResponseErrorContainer>} An array of error containers.
+   */
+  get errors() {
+    return Array.from(this.errorsMap.values());
+  }
+
+  /**
+   * @description Get all errors as a map.
+   * @returns {Map<string, ResponseErrorContainer>} A map of errors with error codes as keys.
+   */
+  getErrors() {
+    return this.errorsMap;
+  }
+
+  /**
+   * @description Get a specific error by its code or the first error if no code is provided.
+   * @param {string} [code] - The error code to search for.
+   * @returns {ResponseErrorContainer} The corresponding error container or a generic error if not found.
+   */
+  getError(code) {
+    return (code ? this.errorsMap.get(code) : this.errors[0]) || new ResponseErrorContainer();
+  }
+
+  /**
+   * @private
+   * @description Normalize an unknown error into a structured ResponseErrorContainer.
+   * @param {unknown} error - The unstructured error object.
+   * @returns {ResponseErrorContainer} A structured error container.
+   */
+  getStructuredError(error) {
+    let normalizedError;
+
+    if (typeof error === 'string') {
+      try {
+        const parsed = JSON.parse(error);
+
+        normalizedError = {
+          message: parsed.message || error,
+          code: parsed.code || ERROR_CODE_GENERIC,
+          ...parsed,
+        };
+      } catch {
+        normalizedError = {
+          message: error,
+          code: ERROR_CODE_GENERIC,
+        };
+      }
+    } else {
+      let message;
+
+      try {
+        message = error?.message || error?.error || JSON.stringify(error);
+      } catch {
+        message = ERROR_MESSAGE_GENERIC;
+      }
+      normalizedError = {
+        code: error?.code || ERROR_CODE_GENERIC,
+        message,
+        ...error,
+      };
+    }
+
+    return new ResponseErrorContainer(normalizedError);
+  }
+}