Easy Way to Access Auth Bearer Token in Header

Google Cloud Apigee
1

I want to use the Get OAuth Info policy to retrieve info for the token provided in the request header as “Authorization: Bearer {token}”.

The only way I know to accomplish this is to first copy the token to another portion of the request or a custom context variable via a Javascript policy. This is a little frustrating because the regular OAuth policy will pick up the bearer token without any extra effort.

Can the “get oauth info” policy not do the same? Is there a syntax I’m missing? Something like the below (which doesn’t work of course):

<AccessToken ref="request.header.Authorization:Bearer"/>
2

You could use an ExtractVariables policy before the GetOauthV2Info policy:

<ExtractVariables>
   <Headername="Authorization">
      <PatternignoreCase="false">Bearer {oauthtoken}</Pattern>
    </Header>
</ExtractVariables>

Then use the extracted variable (oauthtoken) as a reference, like so:

<GetOAuthV2Info>
  <AccessToken ref="oauthtoken"/>
</GetOAuthV2Info>
2 Likes
3

That does look like a pretty clean way to do it. But still, I’m wondering if it’s possible without the extra policy.

4

Putting it properly; there were a few spaces missing in the above:

<ExtractVariables>
   <Header name="Authorization">
      <Pattern ignoreCase="false">Bearer {oauthtoken}</Pattern>
    </Header>
</ExtractVariables>
5

If i wanted to get this access token in java script how would i pull it,was that request.getVariable(“oauthtoken”) ?

6

After the given ExtractVariables policy, you would use something like this code in JavaScript:

var token = context.getVariable('oauthtoken');