oauth tutorial - OAuth Resource Owner Password Credentials Grant Requests and Response - oauth2 tutorial - oauth authentication
What is requests and response?
Request-response, or request-reply, is one of the basic methods computers use to communicate with each other, in which the first computer sends a request for some data and the second computer responds to the request.
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Resource Owner Password Credentials Grant Request
The request contains the following parameters:
| Parameters | Description |
|---|---|
| grant_type | Required. Must be set to password |
| username | Required. The username of the resource owner, UTF-8 encoded. |
| password | Required. The password of the resource owner, UTF-8 encoded. |
| scope | Optional. The scope of the authorization. |
Resource Owner Password Credentials Grant Response
The response is a JSON structure containing the access token. The JSON structure looks like this:
{ "access_token" : "...",
"token_type" : "...",
"expires_in" : "...",
"refresh_token" : "...",
}
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- The access_token property is the access token as assigned by the authorization server.
- The token_type property is a type of token assigned by the authorization server.
- The expires_in property is a number of seconds after which the access token expires, and is no longer valid. Expiration of access tokens is optional.
- The refresh_token property contains a refresh token in case the access token can expire.
- The refresh token is used to obtain a new access token once the one returned in this response is no longer valid.