OAuth2RestTemplate - Client Side Caching

I see the below restTemplate being used for fetching OAuth token. I don't see any explicit call to cache the token in my application. However I see the same token value being returned by this template. Does OAuth2RestTemplate inherently implement client side caching? If so , does it make an explicit call to the OAuth2 endpoint when the token expires?

@Qualifier("oauth")

@Bean

public OAuth2RestTemplate restTemplate(@Qualifier("resourceDetails") ClientCredentialsResourceDetails resourceDetails) {

    return new OAuth2RestTemplate(resourceDetails);

}

I saw the below in the documentation -

getAccessToken public OAuth2AccessToken getAccessToken()
throws UserRedirectRequiredException

Acquire or renew an access token for the current context if necessary.
This method will be called automatically when a request is executed
(and the result is cached), but can also be called as a standalone
method to pre-populate the token.

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

add a comment |

@Qualifier("oauth")

@Bean

public OAuth2RestTemplate restTemplate(@Qualifier("resourceDetails") ClientCredentialsResourceDetails resourceDetails) {

    return new OAuth2RestTemplate(resourceDetails);

}

I saw the below in the documentation -

getAccessToken public OAuth2AccessToken getAccessToken()
throws UserRedirectRequiredException

Acquire or renew an access token for the current context if necessary.
This method will be called automatically when a request is executed
(and the result is cached), but can also be called as a standalone
method to pre-populate the token.

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

add a comment |

@Qualifier("oauth")

@Bean

public OAuth2RestTemplate restTemplate(@Qualifier("resourceDetails") ClientCredentialsResourceDetails resourceDetails) {

    return new OAuth2RestTemplate(resourceDetails);

}

I saw the below in the documentation -

getAccessToken public OAuth2AccessToken getAccessToken()
throws UserRedirectRequiredException

Acquire or renew an access token for the current context if necessary.
This method will be called automatically when a request is executed
(and the result is cached), but can also be called as a standalone
method to pre-populate the token.

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

@Qualifier("oauth")

@Bean

public OAuth2RestTemplate restTemplate(@Qualifier("resourceDetails") ClientCredentialsResourceDetails resourceDetails) {

    return new OAuth2RestTemplate(resourceDetails);

}

I saw the below in the documentation -

getAccessToken public OAuth2AccessToken getAccessToken()
throws UserRedirectRequiredException

Acquire or renew an access token for the current context if necessary.
This method will be called automatically when a request is executed
(and the result is cached), but can also be called as a standalone
method to pre-populate the token.

java spring spring-boot

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

edited Nov 21 '18 at 19:11

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

asked Nov 21 '18 at 19:02

Punter Vicky

3,9582179146

add a comment |

1 Answer
1

active

oldest

votes

it's clearly said that the token is cached in the context (DefaultOAuth2ClientContext object) created when defining a resource. however, the token is managed by calling getAccessToken(). here is what the Docs says about getAccessToken():

Acquire or renew an access token for the current context if necessary.
This method will be called automatically * when a request is
executed (and the result is cached), but can also be called as a
standalone method to * pre-populate the token.

the token is cached until it's Expired, then it will be renewed automatically. this snippet of code from getAccessToken() describes it:

if (accessToken == null || accessToken.isExpired()) {

            try {

                accessToken = acquireAccessToken(context);

            }

About Caching mechanism, By default spring provides an in-memory caching

DefaultOAuth2ClientContext

but you can provide your own implementation of

OAuth2ClientContext

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

add a comment |

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1 Answer
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active

oldest

votes

1 Answer
1

active

oldest

votes

Acquire or renew an access token for the current context if necessary.
This method will be called automatically * when a request is
executed (and the result is cached), but can also be called as a
standalone method to * pre-populate the token.

the token is cached until it's Expired, then it will be renewed automatically. this snippet of code from getAccessToken() describes it:

if (accessToken == null || accessToken.isExpired()) {

            try {

                accessToken = acquireAccessToken(context);

            }

About Caching mechanism, By default spring provides an in-memory caching

DefaultOAuth2ClientContext

but you can provide your own implementation of

OAuth2ClientContext

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

add a comment |

Acquire or renew an access token for the current context if necessary.
This method will be called automatically * when a request is
executed (and the result is cached), but can also be called as a
standalone method to * pre-populate the token.

the token is cached until it's Expired, then it will be renewed automatically. this snippet of code from getAccessToken() describes it:

if (accessToken == null || accessToken.isExpired()) {

            try {

                accessToken = acquireAccessToken(context);

            }

About Caching mechanism, By default spring provides an in-memory caching

DefaultOAuth2ClientContext

but you can provide your own implementation of

OAuth2ClientContext

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

add a comment |

Acquire or renew an access token for the current context if necessary.
This method will be called automatically * when a request is
executed (and the result is cached), but can also be called as a
standalone method to * pre-populate the token.

the token is cached until it's Expired, then it will be renewed automatically. this snippet of code from getAccessToken() describes it:

if (accessToken == null || accessToken.isExpired()) {

            try {

                accessToken = acquireAccessToken(context);

            }

About Caching mechanism, By default spring provides an in-memory caching

DefaultOAuth2ClientContext

but you can provide your own implementation of

OAuth2ClientContext

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

Acquire or renew an access token for the current context if necessary.
This method will be called automatically * when a request is
executed (and the result is cached), but can also be called as a
standalone method to * pre-populate the token.

the token is cached until it's Expired, then it will be renewed automatically. this snippet of code from getAccessToken() describes it:

if (accessToken == null || accessToken.isExpired()) {

            try {

                accessToken = acquireAccessToken(context);

            }

About Caching mechanism, By default spring provides an in-memory caching

DefaultOAuth2ClientContext

but you can provide your own implementation of

OAuth2ClientContext

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

edited Nov 21 '18 at 20:10

answered Nov 21 '18 at 19:49

stacker

1,841229

answered Nov 21 '18 at 19:49

stacker

1,841229

answered Nov 21 '18 at 19:49

stacker

1,841229

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

add a comment |

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

Thanks @slimane , that's what I saw in the documentation as mentioned in my question. Do you know how long it is cached , when it is refreshed and what happens when token expires?

– Punter Vicky
Nov 21 '18 at 19:52

@PunterVicky edited the answer

– stacker
Nov 21 '18 at 20:01

Thanks @slimane , does it cache in memory of the app.

– Punter Vicky
Nov 21 '18 at 20:03

@PunterVicky I included that in my answer ;)

– stacker
Nov 21 '18 at 20:11

Thanks @slimane

– Punter Vicky
Nov 21 '18 at 20:20

add a comment |

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