Spring RestTemplate customizer to log HTTP traffic.
Add a dependency to your Maven project:
<dependency>
<groupId>org.hobsoft.spring</groupId>
<artifactId>spring-rest-template-logger</artifactId>
<version>2.0.0</version>
</dependency>Customize your RestTemplate as follows:
RestTemplate restTemplate = new RestTemplateBuilder()
.customizers(new LoggingCustomizer())
.build();Ensure that debug logging is enabled in application.properties:
logging.level.org.hobsoft.spring.resttemplatelogger.LoggingCustomizer = DEBUGNow all RestTemplate HTTP traffic will be logged to org.hobsoft.spring.resttemplatelogger.LoggingCustomizer at debug
level:
2020-02-09 10:59:48.954 DEBUG 17602 --- [nio-8080-exec-1] o.h.s.r.LoggingCustomizer : Request: GET http://example.com/
2020-02-09 10:59:49.291 DEBUG 17602 --- [nio-8080-exec-1] o.h.s.r.LoggingCustomizer : Response: 200 <!doctype html>
<html>
<head>
<title>Example Domain</title>
...
See the demo Spring Boot application to see this in action.
To log HTTP traffic to an alternative logger, simply pass it to the customizer:
RestTemplate restTemplate = new RestTemplateBuilder()
.customizers(new LoggingCustomizer(LogFactory.getLog("my.http.log")))
.build();To use a different format when logging HTTP traffic, implement LogFormatter and pass it to the customizer:
RestTemplate restTemplate = new RestTemplateBuilder()
.customizers(new LoggingCustomizer(LogFactory.getLog(LoggingCustomizer.class), new MyLogFormatter()))
.build();Consider subclassing DefaultLogFormatter and overriding formatBody if you only need to customise the logged HTTP
body.
Thanks to @nwholloway and @hdpe for the original implementation.
