pjs.fiber.wrap()
This API is deprecated, starting in Profound.js 6. If running Profound.js 6 or higher, use Node's util.promisify() and async/await instead. See here for an example.
This API wraps an asynchronous function so that it can be called in a top-down manner within a fiber. Â
The API assumes that the function accepts a callback as its last parameter in the following format:
function(error, response)
This is typical for virtually all asynchronous Node.js requests.
The API can also accept an object which contains a set of asynchronous functions, in which case it will act the same as the pjs.fiber.wrapAll() API.
Parameters
- asynchronous function
this
 argument (optional)Typically, the parent object of the function is passed; this is required if internally the function uses the this keyword.
Alternative Parameters
- object containing asynchronous functions
Return Value
A top-down function is returned.
Exception Handling
If the callback receives an error object, an error is thrown.
Shortcut
pjs.wrap() is a shortcut for pjs.fiber.wrap().
Examples
Wrap fs.readFile in a fiber
const fs = require('fs'); var readFile = pjs.wrap(fs.readFile); var text = readFile("somefile.txt", 'utf8');
Wrap all fs API in a fiber
const fs = pjs.wrap(require('fs')); var text = fs.fiber.readFile("somefile.txt", 'utf8');
Video Tutorial