keycloak-angular/esm2015/lib/core/interceptors/keycloak-bearer.interceptor.js

Easy Keycloak setup for Angular applications

import { Injectable } from '@angular/core';
import { from } from 'rxjs';
import { mergeMap } from 'rxjs/operators';
import { KeycloakService } from '../services/keycloak.service';
export class KeycloakBearerInterceptor {
    constructor(keycloak) {
        this.keycloak = keycloak;
    }
    isUrlExcluded({ method, url }, { urlPattern, httpMethods }) {
        let httpTest = httpMethods.length === 0 ||
            httpMethods.join().indexOf(method.toUpperCase()) > -1;
        let urlTest = urlPattern.test(url);
        return httpTest && urlTest;
    }
    intercept(req, next) {
        const { enableBearerInterceptor, excludedUrls } = this.keycloak;
        if (!enableBearerInterceptor) {
            return next.handle(req);
        }
        const shallPass = excludedUrls.findIndex((item => this.isUrlExcluded(req, item))) > -1;
        if (shallPass) {
            return next.handle(req);
        }
        return from(this.keycloak.isLoggedIn()).pipe(mergeMap(((loggedIn) => loggedIn
            ? this.handleRequestWithTokenHeader(req, next)
            : next.handle(req))));
    }
    handleRequestWithTokenHeader(req, next) {
        return this.keycloak.addTokenToHeader(req.headers).pipe(mergeMap((headersWithBearer => {
            const kcReq = req.clone({ headers: headersWithBearer });
            return next.handle(kcReq);
        })));
    }
}
KeycloakBearerInterceptor.decorators = [
    { type: Injectable }
];
KeycloakBearerInterceptor.ctorParameters = () => [
    { type: KeycloakService }
];
if (false) {
    KeycloakBearerInterceptor.prototype.keycloak;
}
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