Under OAuth 2.0 Authentication , to authenticate we can use grant type as Authorization code and client credentials. Not able to be figure out the exact difference between the Authorization code and client credentials grant type.
I tried to use grant type as Authorization code in Postman for authentication and triggered the PostDetails Request. I am able to authenticate successfully when I do it manually.
Below are the parameters that is set when I generate a new access token.
Token Name : Token Name
Grant Type : Authorization code
Callback URL : https://www.getpostman.com/oauth2/callback
Auth URL: https://login.microsoftonline.com/tenantname.com/oauth2/authorize?resource=https://usnconeboxax1aos.cloud.onebox.dynamics.com
Client ID : ccccccccccccccccccccccccccccccccccc
Client Secret: sssssssssssssssssssssssssssssss
Client Authentication: Send as Basic auth header
I am trying to send the same request with the below mentioned Pre- run script , the authentication fails with error.
JSONError: Unexpected token u in JSON at position 0.
pm.sendRequest({
url: 'https://login.microsoftonline.com/tenantname.com/oauth2/authorize?resource=https://usnconeboxax1aos.cloud.onebox.dynamics.com',
method: 'Post',
header: {
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Oauth_2.0'
},
body: {
mode: 'urlencoded',
urlencoded: [
{ key: 'client_id', value: pm.environment.get("client_id")},
{ key: 'client_secret', value: pm.environment.get("secret_key")},
{ key: 'grant_type', value: 'Authorization_code'},
{ key: 'callback_url', value: 'https://www.getpostman.com/oauth2/callback'},
{ key: 'Auth_url', value: 'https://login.microsoftonline.com/tenantname.com/oauth2/authorize?//resource=https://usnconeboxax1aos.cloud.onebox.dynamics.com'},
{ key: 'client_authentication', value: 'Send as Basic auth header'}
]
}
}, function (err, res) {
pm.environment.set("OAuthtoken", res.json().access_token);
});
Not sure what i am missing. Kindly suggest.
