I am an "advanced beginner" with javascript API's so my needs maybe sophomoric, but after pounding my head against the wall all night appreciate any basic guidance you can provide. I am trying to authenticate an app using Oauth2 to hit my BaseCamp site.
I am using Grant Express and have registered my app successfully such that I received client_ID, client_secret and redirect uri. For the redirect uri I added a folder called "auth" but the only thing in it is an index.html file that is blank. So the redirect url is http://example.com/auth.
On my local machine I have created a directory called oauth and within it ran: npm install express npm install grant-express
I created a file app.js that looks like this:
var express = require('express')
, session = require('express-session')
var Grant = require('grant-express')
var config = {
server: {
protocol: "http",
host: "127.0.0.1:3000"
},
basecamp: {
key: "key_from_basecamp",
secret: "secret_from_basecamp",
callback: "/basecamp/callback"
}
}
var app = express()
app.use(session({secret:'grant',
resave: true,
saveUninitialized: true}))
app.use(new Grant(config))
app.get("/basecamp/callback", function (req, res) {
console.log(req.query)
res.end(JSON.stringify(req.query, null, 2))
})
app.listen(3000, function () {
console.log('Express server listening on port ' + 3000)
})
The package.json file looks like this:
{
"name": "auth",
"version": "1.0.0",
"description": "",
"main": "app.js",
"dependencies": {
"express": "^4.13.4",
"grant-express": "^3.6.0"
},
"devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
I go to the terminal and enter node app.js and get the response: Express server listening on port 3000. All good right?
When I go to my browser and type in http://localhost:3000/connect/basecamp the url does redirect to: https://launchpad.37signals.com/authorization/new?client_id=client_id_from_basecamp&response_type=code&redirect_uri=http%3A%2F%2F127.0.0.1%3A3000%2Fconnect%2Fbasecamp%2Fcallback&type=web_server
but the page contains this error: :error: Provided redirect_uri is not approved
If I got to: http://localhost:3000/connect/basecamp/callback
I see this error (also in the console of the server) { error: { error: 'Grant: OAuth2 missing code parameter' } }
In the Basecamp API documentation it says: Configure your OAuth 2 library with your client_id, client_secret, and redirect_uri. Tell it to use https://launchpad.37signals.com/authorization/new to request authorization and https://launchpad.37signals.com/authorization/token to get access tokens. What is "it" and how, exactly would I tell it to use these urls? Do I add these url's into my app.js file as objects? Or do I go into another file? Do I need to add something into http://example.com/auth?
Not sure where to go from here.... Many thanks for any assistance.
