var response = yield doCall(urlToCall); // “yield” garuantees the callback finished. console. log(response) // The response will not be undefined anymore. By doing this, we wait until the callback function finishes, then get the value from it.
Read moreWhat is next middleware?
Middleware functions are functions that have access to the request object ( req ), the response object ( res ), and the next middleware function in the application’s request-response cycle. The next middleware function is commonly denoted by a variable named next .
Read moreWhat is the main purpose of the middleware in distributed systems?
Middleware in the context of distributed applications is software that provides services beyond those provided by the operating system to enable the various components of a distributed system to communicate and manage data . Middleware supports and simplifies complex distributed applications.
Read moreWhat are the benefits of middleware?
The advantages of middleware
Read moreHow do you call a function in node JS?
To call a function, you can either pass its name and arguments to User. callFunction() or call the function as if it was a method on the User.
Read moreWhat are the benefits of middleware?
The advantages of middleware
Read moreWhat does use () do in Express?
use() function is used to mount the specified middleware function(s) at the path which is being specified . It is mostly used to set up middleware for your application. Parameters: path: It is the path for which the middleware function is being called.18 Haz 2020
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