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passport.authenticate() using a Promise instead of a Custom Callback

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0

passport.authenticate(), how can I define a Promise instead of using a Custom Ballback?

How to used passport.authenticate() is referenced within here:
http://www.passportjs.org/docs/authenticate/

Within this page, there is a section Custom Ballback:

If the built-in options are not sufficient for handling an authentication request, a custom callback can be provided to allow the application to handle success or failure.

app.get('/login', function(req, res, next) 
 passport.authenticate('local', function(err, user, info) 
 if (err) return next(err); 
 if (!user) return res.redirect('/login'); 
 req.logIn(user, function(err) 
 if (err) return next(err); 
 return res.redirect('/users/' + user.username);
 );
 )(req, res, next);
);

The Custom Callback is defined as:

function(err, user, info)...

What I wish to do is replace this Custom Callback with a Promise.

[Promise](resolve, reject)
.then(res => 
)
.catch(err => 
)

How can I do this? Thank you.

node.js authentication promise passport.js

share|improve this question

edited Mar 24 at 21:41

Jeff Tanner

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can't your custom callback just return a promise?
  
  – Sterling Archer
  Mar 24 at 21:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you for your response, I could give that a try.
  
  – Jeff Tanner
  Mar 24 at 22:15
  

  
  
  
  

add a comment | 

0

passport.authenticate(), how can I define a Promise instead of using a Custom Ballback?

How to used passport.authenticate() is referenced within here:
http://www.passportjs.org/docs/authenticate/

Within this page, there is a section Custom Ballback:

If the built-in options are not sufficient for handling an authentication request, a custom callback can be provided to allow the application to handle success or failure.

app.get('/login', function(req, res, next) 
 passport.authenticate('local', function(err, user, info) 
 if (err) return next(err); 
 if (!user) return res.redirect('/login'); 
 req.logIn(user, function(err) 
 if (err) return next(err); 
 return res.redirect('/users/' + user.username);
 );
 )(req, res, next);
);

The Custom Callback is defined as:

function(err, user, info)...

What I wish to do is replace this Custom Callback with a Promise.

[Promise](resolve, reject)
.then(res => 
)
.catch(err => 
)

How can I do this? Thank you.

node.js authentication promise passport.js

share|improve this question

edited Mar 24 at 21:41

Jeff Tanner

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can't your custom callback just return a promise?
  
  – Sterling Archer
  Mar 24 at 21:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you for your response, I could give that a try.
  
  – Jeff Tanner
  Mar 24 at 22:15
  

  
  
  
  

add a comment | 

passport.authenticate(), how can I define a Promise instead of using a Custom Ballback?

How to used passport.authenticate() is referenced within here:
http://www.passportjs.org/docs/authenticate/

Within this page, there is a section Custom Ballback:

If the built-in options are not sufficient for handling an authentication request, a custom callback can be provided to allow the application to handle success or failure.

app.get('/login', function(req, res, next) 
 passport.authenticate('local', function(err, user, info) 
 if (err) return next(err); 
 if (!user) return res.redirect('/login'); 
 req.logIn(user, function(err) 
 if (err) return next(err); 
 return res.redirect('/users/' + user.username);
 );
 )(req, res, next);
);

The Custom Callback is defined as:

function(err, user, info)...

What I wish to do is replace this Custom Callback with a Promise.

[Promise](resolve, reject)
.then(res => 
)
.catch(err => 
)

How can I do this? Thank you.

node.js authentication promise passport.js

share|improve this question

edited Mar 24 at 21:41

Jeff Tanner

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

app.get('/login', function(req, res, next) 
 passport.authenticate('local', function(err, user, info) 
 if (err) return next(err); 
 if (!user) return res.redirect('/login'); 
 req.logIn(user, function(err) 
 if (err) return next(err); 
 return res.redirect('/users/' + user.username);
 );
 )(req, res, next);
);

function(err, user, info)...

[Promise](resolve, reject)
.then(res => 
)
.catch(err => 
)

share|improve this question

edited Mar 24 at 21:41

Jeff Tanner

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

share|improve this question

edited Mar 24 at 21:41

Jeff Tanner

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

asked Mar 24 at 21:39

Jeff TannerJeff Tanner

79112

2 Answers
2

active

oldest

votes

3

You can use the es6-promisify package. It is very easy to use, here is an example:

const promisify = require("es6-promisify");

// Convert the stat function
const fs = require("fs");
const stat = promisify(fs.stat);

// Now usable as a promise!
stat("example.txt").then(function (stats) 
 console.log("Got stats", stats);
).catch(function (err) 
 console.error("Yikes!", err);
);

share|improve this answer

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I trying out the following: "Using node's promisify with passport": github.com/jaredhanson/passport/issues/605
  
  – Jeff Tanner
  Mar 24 at 23:46
  
  

  
  
  
  

add a comment | 

0

Thanks all for your helpful responses @sterling-archer and @el-finito

I had found a related issue within Passport.js Github repository helpful for using Passport to handle passport.authenticate() callback:
"Using node's promisify with passport"

export const authenticate = (req, res) =>
 new Promise((resolve, reject) => 
 passport.authenticate(
 [passport strategy],
 session: false ,
 (err, user) => 
 if (err) reject(new Error(err))
 else if (!user) reject(new Error('Not authenticated'))
 resolve(user)
 )(req, res)
 )

share|improve this answer

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

add a comment | 

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3

You can use the es6-promisify package. It is very easy to use, here is an example:

const promisify = require("es6-promisify");

// Convert the stat function
const fs = require("fs");
const stat = promisify(fs.stat);

// Now usable as a promise!
stat("example.txt").then(function (stats) 
 console.log("Got stats", stats);
).catch(function (err) 
 console.error("Yikes!", err);
);

share|improve this answer

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I trying out the following: "Using node's promisify with passport": github.com/jaredhanson/passport/issues/605
  
  – Jeff Tanner
  Mar 24 at 23:46
  
  

  
  
  
  

add a comment | 

3

You can use the es6-promisify package. It is very easy to use, here is an example:

const promisify = require("es6-promisify");

// Convert the stat function
const fs = require("fs");
const stat = promisify(fs.stat);

// Now usable as a promise!
stat("example.txt").then(function (stats) 
 console.log("Got stats", stats);
).catch(function (err) 
 console.error("Yikes!", err);
);

share|improve this answer

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I trying out the following: "Using node's promisify with passport": github.com/jaredhanson/passport/issues/605
  
  – Jeff Tanner
  Mar 24 at 23:46
  
  

  
  
  
  

add a comment | 

You can use the es6-promisify package. It is very easy to use, here is an example:

const promisify = require("es6-promisify");

// Convert the stat function
const fs = require("fs");
const stat = promisify(fs.stat);

// Now usable as a promise!
stat("example.txt").then(function (stats) 
 console.log("Got stats", stats);
).catch(function (err) 
 console.error("Yikes!", err);
);

share|improve this answer

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

const promisify = require("es6-promisify");

// Convert the stat function
const fs = require("fs");
const stat = promisify(fs.stat);

// Now usable as a promise!
stat("example.txt").then(function (stats) 
 console.log("Got stats", stats);
).catch(function (err) 
 console.error("Yikes!", err);
);

share|improve this answer

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

answered Mar 24 at 21:44

eL_FinitoeL_Finito

285110

0

Thanks all for your helpful responses @sterling-archer and @el-finito

I had found a related issue within Passport.js Github repository helpful for using Passport to handle passport.authenticate() callback:
"Using node's promisify with passport"

export const authenticate = (req, res) =>
 new Promise((resolve, reject) => 
 passport.authenticate(
 [passport strategy],
 session: false ,
 (err, user) => 
 if (err) reject(new Error(err))
 else if (!user) reject(new Error('Not authenticated'))
 resolve(user)
 )(req, res)
 )

share|improve this answer

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

add a comment | 

0

Thanks all for your helpful responses @sterling-archer and @el-finito

I had found a related issue within Passport.js Github repository helpful for using Passport to handle passport.authenticate() callback:
"Using node's promisify with passport"

export const authenticate = (req, res) =>
 new Promise((resolve, reject) => 
 passport.authenticate(
 [passport strategy],
 session: false ,
 (err, user) => 
 if (err) reject(new Error(err))
 else if (!user) reject(new Error('Not authenticated'))
 resolve(user)
 )(req, res)
 )

share|improve this answer

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

add a comment | 

Thanks all for your helpful responses @sterling-archer and @el-finito

I had found a related issue within Passport.js Github repository helpful for using Passport to handle passport.authenticate() callback:
"Using node's promisify with passport"

export const authenticate = (req, res) =>
 new Promise((resolve, reject) => 
 passport.authenticate(
 [passport strategy],
 session: false ,
 (err, user) => 
 if (err) reject(new Error(err))
 else if (!user) reject(new Error('Not authenticated'))
 resolve(user)
 )(req, res)
 )

share|improve this answer

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

export const authenticate = (req, res) =>
 new Promise((resolve, reject) => 
 passport.authenticate(
 [passport strategy],
 session: false ,
 (err, user) => 
 if (err) reject(new Error(err))
 else if (!user) reject(new Error('Not authenticated'))
 resolve(user)
 )(req, res)
 )

share|improve this answer

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112

answered Apr 2 at 20:09

Jeff TannerJeff Tanner

79112