Consume RESTful API Endpoints within a golang application with webtoken

[Renato Marcandier]

Hello guys,

do you have any HelloWorld project in GO using RESTful to issue HTTP requests from within a Golang application to remote RESTful/API with web token that expires every 60 minutes and then consume any data that is returned?

I am trying to get a simple HelloWorld. First, I need to do a POST to grab the new token and after using this token to do a GET and see the response with "Hello World!" using the following parameters:

-------------------------------------------------------------

POST:

Using:

grant_type: password

client_id: xxxxx

client_secret: xxxxx

username: xxxxx

password: xxxxx

URL: https://cloudsso.cisco.com/as/token.oauth2?grant_type=password&client_id=xxxxxxxxxxxxxxxxxx&client_secret=xxxxxxxxxxxx&username=xxxxxxx&password=xxxxxx

Response:

{

"access_token": "tMqvXkR4wTvFwKUNUvMrNUXdzkjD",

}

-------------------------------------------------------------

GET:

Using: Bearer Token

URL: https://api.cisco.com/hello

Response:

{"helloResponse":{"response":"Hello World!"}}


Regards
RG

[Benjamin]

Easy, Store the expired time in the token, and hash them.

When the expired time almost reach, use the old token to get a new token.

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[Ingo Oeser]

I can only recommend https://pkg.go.dev/golang.org/x/oauth2/clientcredentials?tab=doc if you are implementing that.

Configure clientcredentials.Config and use the http.Client returned by the Client method of that Config to do all your http calls.

It manages all the token refreshing automatically and transparently for you and is pretty battle hardened already.