@anglr/rest/es2022/src/middlewares/headers.middleware.js

Angular module representing rest services

import { isBlank, isPresent } from '@jscrpt/common';
/**
 * Middleware that is used for setting custom http headers
 */
export class HeadersMiddleware {
    //######################### public static properties #########################
    /**
     * String identification of middleware
     */
    static { this.id = 'HeadersMiddleware'; }
    //######################### public methods - implementation of RestMiddleware #########################
    /**
     * Runs code that is defined for this rest middleware, in this method you can modify request and response
     * @param this - Method is bound to RESTClient
     * @param id - Unique id that identifies request method
     * @param target - Prototype of class that are decorators applied to
     * @param methodName - Name of method that is being modified
     * @param descriptor - Descriptor of method that is being modified
     * @param args - Array of arguments passed to called method
     * @param request - Http request that you can modify
     * @param next - Used for calling next middleware with modified request
     */
    run(_id, _target, _methodName, descriptor, _args, request, next) {
        if (isBlank(descriptor.headers)) {
            return next(request);
        }
        const headers = {};
        // set method specific headers
        for (const k in descriptor.headers) {
            if (isPresent(descriptor.headers[k])) {
                headers[k] = descriptor.headers[k];
            }
        }
        request = request.clone({
            setHeaders: headers
        });
        return next(request);
    }
}
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