User Credentials #

Instructions on how to integrate User credentials

With machine-to-machine (M2M) applications, such as CLIs, daemons, or services running on your back-end, the system authenticates and authorizes the app and provide an User-scope access token. M2M apps use the User Credentials Flow, in which they pass along their Client ID, Client Secret and Login Id to authenticate themselves and get an user-scope access token.

1. Your app authenticates with the ATM Authorization Server using its Client ID, Client Secret and Login ID (/oauth/token endpoint).
2. Your Auth0 Authorization Server validates the Client ID, Client Secret and Login ID.
3. Your Auth0 Authorization Server responds with an User-Scoped Access Token.
4. Your application can use the Access Token to call an API on behalf of itself.

The API responds with the requested data.

1. Create User Credentials
   • Access the Application page
   • Click on the Create button

• Choose Authenticator Type is User Credentials Flow

2. Integrate

After creating an application with an authentication type is User credentials. Call API to get a token (Refer to this link)

* Api:
  Name: genTokenApp
  Path: /auth/token
  Method: POST
  Payload:

{
  "clientId": "NmN78x6DMfde1XRx9hQg",
  "clientSecret": "480nulBeBGqJDoAOADC0CW2frGTDVEmq",
  "grant_types": "user_credentials",
  "loginId": "admin@gmail.com"
}

- clientId: Get value from the application
- clientSecret: Get value from the application
- grant_types: user credentials is authorization between machine and machine
- loginId: email of user

Example:

var axios = require('axios');
var data = JSON.stringify({
  "clientId": "NmN78x6DMfde1XRx9hQg",
  "clientSecret": "480nulBeBGqJDoAOADC0CW2frGTDVEmq",
  "grant_types": "user_credentials",
  "loginId": "admin@gmail.com"
});

var config = {
  method: 'post',
  url: 'https://api.stg.token.tci-pf.net/auth/token',
  headers: { 
    'Content-Type': 'application/json'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

3. Refresh the access token

Access tokens are short lived. Refresh them after they expire to continue accessing resources. You can do so by submitting another POST request to the /auth/token endpoint. Provide the refresh_token instead of the code (Refer to this link). Example:

* Api:
  Name: genTokenApp
  Path: /auth/token
  Method: POST
  Payload:

{
  "clientId": "DwSljVC4Ycr5YAv2Qbkf",
  "refresh_token": "",
  "id_token": "",
  "grantType": "refresh_token"
}

-clientId: Get from application
-grant_types: "refresh_token" 

After authentication success, ATM will return the access token

var axios = require('axios');
var data = JSON.stringify({
  "clientId": "DwSljVC4Ycr5YAv2Qbkf",
  "refresh_token": "",
  "id_token": "",
  "grantType": "refresh_token"
});

var config = {
  method: 'post',
  url: 'https://api.stg.token.tci-pf.net/auth/token',
  headers: { 
    'Content-Type': 'application/json'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Response data:

{
    "access_token":"", // New access token
    "exp_access_token": 600 // Time expiration access token is 600 seconds
}

4. How to validate the access token RSA 256

Call API to get the login key: (Refer to this link)

  * Api:
    Name: getJWKS
    Path: /auth/.well-known/jwks.json
    Method: GET

Example:

var jwksClient = require('jwks-rsa');
var client = jwksClient({
  jwksUri: 'https://api.stg.token.tci-pf.net/auth/.well-known/jwks.json'
});

function getKey(header, callback){
  client.getSigningKey(header.kid, function(err, key) {
    var signingKey = key.publicKey || key.rsaPublicKey;
    callback(null, signingKey);
  });
}

jwt.verify(token, getKey, options, function(err, decoded) {
  console.log(decoded)
}

Decoded token:

{
  "iat":1662429262,
  "iss":"atm",
  "exp":1662429442,
  "aud":"T_1kwjq0gTKGW6-g4O8OF",
  "scope": {
      "email": "admin@gmail.com",
      "id": "D7aaqWe34vWj_Bd-uuP8N",
      "firstName": "Thong",
      "lastName": ""
  }
}