Async validation function for Swagger + Node.js

Question

Async validation function for Swagger + Node.js

So, I'm using Node.js + Swagger + MongoDB.

I'm trying to validate that all requests come with a valid auth_token, which is a value stored on the user on mongo. My problem is that the validators supported by Swagger need to return true or false, but since I have to check against Mongo to verify the auth token, the whole validation becomes asynchronous.

Here is the code in case you need it:

swagger.addValidator(
  function validate(req, path, httpMethod) {
      var apiKey = req.headers["auth_token"];
      if (!apiKey) {
        apiKey = url.parse(req.url,true).query["auth_token"]; 
      }

      models.user.validateAuthToken(apiKey, function(err, valid) {
        //Here is where I know if the auth token is valid and it checks against Mongo, so it's async
      });

    return [something]; //this is what the validation sequence is expecting this function to do: return true or false
 });

How can I solve this issue?

node.js
mongodb
swagger

Answer 1

You can't, You might want to open a ticket with swagger to enable async validations.

Answer 2

Are you using Swagger 1.2 or 2.0? If 2.0, you can use swagger-tools to connect middleware for wiring up security handlers for requests based on Swagger documentation. It supports all swagger security mechanism defined in Swagger Specification.

Answer 3

And returning the result of the async function does not work?

wagger.addValidator(
  function validate(req, path, httpMethod) {
      var apiKey = req.headers["auth_token"];
      if (!apiKey) {
        apiKey = url.parse(req.url,true).query["auth_token"]; 
      }

      return models.user.validateAuthToken(apiKey, function(err, valid) {
        //check against mongo
        return validation;
      });    
 });