JSORM the isomorphic, framework-agnostic Javascript ORM
Middleware
Middleware is helpful whenever you want to globally intercept request.
This is accomplished by assigning a MiddlewareStack to your
ApplicationRecord. Each stack has beforeFilters and afterFilters
where you can globally modify requests. If you throw("abort"), the
promise will be rejected.
Example: redirecting to the login page every time the server returns 401:
Typescript
Javascript
import { MiddlewareStack } from 'jsorm'
let middleware = new MiddlewareStack()
middleware.afterFilters.push((response, json) => {
if (response.status === 401) {
window.location.href = "/login"
throw("abort")
}
})
ApplicationRecord.middlewareStack = middleware
var MiddlewareStack = jsorm.MiddlewareStack;
var middleware = new MiddlewareStack();
middleware.afterFilters.push(function(response, json) {
if (response.status === 401) {
window.location.href = "/login";
throw("abort");
}
});
ApplicationRecord.middlewareStack = middleware;
Example: adding a custom header before the request is sent:
Typescript
Javascript
import { MiddlewareStack } from 'jsorm'
let middleware = new MiddlewareStack()
middleware.beforeFilters.push((url, options) => {
options.headers["CUSTOM-HEADER"] = "whatever"
})
ApplicationRecord.middlewareStack = middleware
var MiddlewareStack = jsorm.MiddlewareStack;
var middleware = new MiddlewareStack();
middleware.beforeFilters.push(function(url, options) {
options.headers["CUSTOM-HEADER"] = "whatever";
});
ApplicationRecord.middlewareStack = middleware;