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Overview
REST Assured is a Java DSL for testing and validating REST services. Its given / when / then flow combines request setup, HTTP execution, and response assertions, including JSONPath, XmlPath, authentication, headers, cookies, and body validation.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Key features
Express request setup and response assertions in one DSL
Tests can specify parameters, headers, cookies, bodies, and authentication, execute common HTTP methods, and then validate status codes or response content.
Sources: [2]
Validate JSON and XML through path expressions and Hamcrest matchers
JSONPath and XmlPath can select values from responses, while matchers such as equalTo and hasItems express API contract and business assertions.
Sources: [2]
Best fit
Before adoption
REST Assured 6.x uses Java 17 as its baseline
The README states that 6.0.0 raised the baseline to Java 17+, and current documentation links target 6.0.1. Older JDK environments need an upgrade or an older supported line.
Align Spring and Jackson generations with the selected modules
Version 6.0.1 targets Spring 7 in its Spring modules and expands Jackson 3 support, so applications should verify framework-generation compatibility before upgrading.
Sources: [2]
Official sources
- [1]rest-assured/rest-assured repository(2026-09-30)
- [2]REST Assured README(2026-09-30)
- [3]REST Assured parent POM(2026-09-30)
- [4]REST Assured Apache-2.0 license(2026-09-30)
Supplemental curator note
The DSL keeps HTTP requests and response assertions readable in Java API integration tests. Version 6.x raises the runtime baseline and framework generations, so validate JDK, Spring, and Jackson compatibility before upgrading.
Try it in 3 steps
- 1
Add REST Assured 6.0.1 as a test dependency
Add the dependency to a Maven pom.xml with test scope. REST Assured 6.x requires Java 17 or newer.
<dependency><groupId>io.rest-assured</groupId><artifactId>rest-assured</artifactId><version>6.0.1</version><scope>test</scope></dependency> - 2
Add the DSL static imports
Make the request DSL and Hamcrest matchers directly available in the test class.
import static io.restassured.RestAssured.*; import static org.hamcrest.Matchers.*; - 3
Validate a GET response
Follow the README example to call an endpoint and assert a JSON body value. Replace the path and expected value with the target test service.
get("/lotto").then().assertThat().body("lotto.lottoId", equalTo(5));
Growth
Growth trends · Last 30 days
7,141 Stars
Trend data is still being collected.
Development activity
Last 90 days · weekly
- Commits (last 30 days)
- 0
- Open PRs
- 29
Development activity is still being collected.
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Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
GitHub Topics
- rest
- rest-api
- java
- groovy
- test-automation
- test
- json
- xml
- http
- kotlin
- Stars
- 7,141
- Forks
- 1,943
- Watchers
- 324
- Open issues
- 568
- Contributors
- 159
- Owner type
- Organization
- Primary language
- Java
- License
- Apache-2.0
- Repository last updated
- Jul 22, 2026
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