RestTemplate can't set timeout pre request [SPR-17624]

[spring-projects-issues]

ailin zhou opened SPR-17624 and commented

Use RestTemplate send request to difference url, we want different request have different SocketTimeout parameter. 

Currently RestTemplate doesn't have any interface costum timeout for pre request. 

The HttpComponentsClientHttpRequestFactory can custum RequestConfig but when use with RestTemplate we have no chance to set timeout parameter.

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No further details from SPR-17624

[spring-projects-issues]

Brian Clozel commented

RestTemplate is a wrapper around HTTP clients that provides a unified API. Many HTTP client libraries are supported, including the JDK client, Apache HTTP components, okhttp, and others.

Configuring a per-request timeout is not something that's consistently supported in all clients and we tend to leave it to the native library. In this case, I believe you can use a specific configuration on Apache Http components to set that timeout on a per-host basis but you're right, RestTemplate does not offer that feature.

I don't see any way to support this feature for all supported clients.

As a workaround, you can either use the underlying library directly or switch to WebClient which provides a timeour operator natively on Mono.

[spring-projects-issues]

ailin zhou commented

Ok, got it, thank you.