If your web app is going to use a FIWARE GE service you have to authenticate the requests.

Once you have obtained an Oauth2 access‐token you have to include it in your client requests in order to authenticate them. This way the GE will check your token with the IDM and decide if your requests are valid. The architecture of this flow is:

HowToImplementOAuth2InYourApplication5

So for include the access‐token in your requests you have to do:

GET /GE_URL_path HTTP/1.1
Host: GE_hostname
X-­Auth-Token: access_token

For instance, using our OAuth2 example explained previously, you can get the access_token in this code fragment:

HowToImplementOAuth2InYourApplication6