waiting for initialization

bizmatch/src/keycloak.ts

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+import { KeycloakAdapter, KeycloakInstance, KeycloakLoginOptions, KeycloakLogoutOptions, KeycloakRegisterOptions } from 'keycloak-js';
+import { createLogger } from './app/utils/utils';
+
+const logger = createLogger('keycloak');
+export type OptionsOrProvider<T> = Partial<T> | (() => Partial<T>);
+/**
+ * Create and immediately resolve a KeycloakPromise
+ */
+const createPromise = () => new Promise<void>(resolve => resolve());
+/**
+ * Resolve OptionsOrProvider: if it's an function, execute it, otherwise return it.
+ */
+const resolveOptions = <T>(opt: OptionsOrProvider<T>): Partial<T> => (typeof opt === 'function' ? opt() : opt);
+/**
+ *
+ * Update options with the overrides given as OptionsOrProvider
+ *
+ * @param options
+ * @param overrides
+ * @returns
+ */
+const updateOptions = <T>(options: T, overrides: OptionsOrProvider<T>): T => Object.assign(options ?? <T>{}, resolveOptions(overrides));
+/**
+ * Keycloak adapter that supports options customization.
+ *
+ * All options can either be given as lazily evaluated provider functions (that will be evaluated
+ * right before navigating) or eagerly evaluated objects. These options will have precedence
+ * over options passed by keycloak-js.
+ *
+ * Cf. https://www.keycloak.org/docs/15.0/securing_apps/#custom-adapters
+ *
+ * Actual implementation copied more or less verbatim from
+ * https://github.com/keycloak/keycloak-js-bower/blob/10.0.2/dist/keycloak.js#L1136
+ *
+ * @param kc Function that returns a Keycloak instance
+ * @param loginOptions login options
+ * @param logoutOptions logout options
+ * @param registerOptions register options
+ * @returns KeycloakAdapter
+ */
+export function customKeycloakAdapter(
+  kc: () => KeycloakInstance,
+  loginOptions: OptionsOrProvider<KeycloakLoginOptions> = {},
+  logoutOptions: OptionsOrProvider<KeycloakLogoutOptions> = {},
+  registerOptions: OptionsOrProvider<KeycloakRegisterOptions> = {},
+): KeycloakAdapter {
+  return {
+    login: (options?: KeycloakLoginOptions): Promise<void> => {
+      updateOptions(options, loginOptions);
+      logger.info('Executing login. Options: ', options);
+      window.location.replace(kc().createLoginUrl(options));
+      return createPromise();
+    },
+    logout: (options?: KeycloakLogoutOptions): Promise<void> => {
+      updateOptions(options, logoutOptions);
+      logger.info('Executing logout. Options: ', options);
+      window.location.replace(kc().createLogoutUrl(options));
+      return createPromise();
+    },
+    register: (options?: KeycloakRegisterOptions): Promise<void> => {
+      updateOptions(options, registerOptions);
+      logger.info('Executing register. Options: ', options);
+      window.location.replace(kc().createRegisterUrl(options));
+      return createPromise();
+    },
+    accountManagement: (): Promise<void> => {
+      const accountUrl = kc().createAccountUrl();
+      logger.info('Executing account management');
+      if (typeof accountUrl !== 'undefined') {
+        window.location.href = accountUrl;
+      } else {
+        throw new Error('Not supported by the OIDC server');
+      }
+      return createPromise();
+    },
+    redirectUri: (options: { redirectUri: string }) => {
+      if (options?.redirectUri) {
+        return options.redirectUri;
+      }
+      if (kc().redirectUri) {
+        return kc().redirectUri;
+      }
+      return window.location.href;
+    },
+  };
+}