Can I make synchronous call with `request` npm package?

问题

I am using request module in my NodeJS application, for making server-to-server API calls. I am making the API call like this:

request(options, function (error, response, body) {
    if( error ){
       // return error response
    }
    // return success response here
});

For some reason, I need to not use this asynchronous way of making call, but do it synchronously. So, is there any way to make this call in synchronous manner. I tried and found some other modules for this, but I need to use this same module.

Thanks

回答1:

Because an HTTP request is asynchronous by nature, you cannot do it synchronously. However, you can use ES6+ Promises and async/await like so:

// First, encapsulate into a Promise
const doRequest = () => new Promise((resolve, reject) => request(options, function (error, response, body) {
  if( error ){
    reject(error)
  }
  resolve(response)
});

// And then, use async/await

const x = 1 + 1

const response = await myRequest()

console.log(response)

More info: https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/Promise

回答2:

No you cannot not. Request will return you promise and you have to handle it somewhere using .then() or calling the function with async/await pattern.

回答3:

As indicated by @Errorname, promises are probably what you are looking for. Instead of writing the code by hand, you could also use the package request-promise: https://www.npmjs.com/package/request-promise

来源：https://stackoverflow.com/questions/53555512/can-i-make-synchronous-call-with-request-npm-package

标签

javascript

node.js

api

request