Quoted from Rest-assured official website, Testing and validating REST services in Java is harder than in dynamic languages such as Ruby and Groovy. REST Assured brings the simplicity of using these languages into the Java domain.
First of all, add dependencies into mvn pom.xml. The first dependency is the basic one, and the second is for json data processing.
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>rest-assured</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>json-path</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>rest-assured</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>json-path</artifactId>
<version>3.2.0</version>
</dependency>
There are two way access uri to RestAssured for calling service. Usercan use the code below to set base uri for global request, so that user can just give partial uri to send request.
The static method given() will return an object of RequestSpecification type, it will contain all global setting for request.
RestAssured.baseURI="http://localhost:8089";
RequestSpecification uncompletedRequest=given();//here just define a object to accept the return of given()
RestAssured.baseURI="http://localhost:8089";
RequestSpecification uncompletedRequest=given();//here just define a object to accept the return of given()
For authentication, Rest-assured provide several way to do it. The basic way is shown as below, and can define authentication for all requests also.
given().auth().basic("username", "password"); //will return an object of RequestSpecification type for chain call
RestAssured.authentication = basic("username", "password");//for all request
given().auth().basic("username", "password"); //will return an object of RequestSpecification type for chain call
RestAssured.authentication = basic("username", "password");//for all request
(we use preemptive basic authentication for jira api authentication.)
RestAssured.authentication=preemptive().basic(username,password);
RestAssured.authentication=preemptive().basic(username,password);
If the service needs ssl certification, the code below is necessary.
RestAssured.useRelaxedHttpsValidation();
RestAssured.useRelaxedHttpsValidation();
Then there are several optional steps preparing for send a request.
//easy to know that this to set contenttype
uncompletedRequest = uncompletedRequest.contentType(contentType);
// this is to set path parameters with a map object following the pattern given in uri
// for example: uri is http://localhost:8089/greeting?name={name}, the pathParams must be {'name': 'Zhang, San'}
// pathParams has more or less params than the uri pattern given is not allowed.
uncompletedRequest = uncompletedRequest.pathParams(pathParams);//there is also method pathParam() to set single key-value param.
//in this way, all key-value pair will be added into path as params
uncompletedRequest = uncompletedRequest.params(params);////there is also method param() to set single key-value param.
// as the method shown, this method is to set request body for post and put request.
uncompletedRequest = uncompletedRequest.body(body);
//easy to know that this to set contenttype
uncompletedRequest = uncompletedRequest.contentType(contentType);
// this is to set path parameters with a map object following the pattern given in uri
// for example: uri is http://localhost:8089/greeting?name={name}, the pathParams must be {'name': 'Zhang, San'}
// pathParams has more or less params than the uri pattern given is not allowed.
uncompletedRequest = uncompletedRequest.pathParams(pathParams); //there is also method pathParam() to set single key-value param.
//in this way, all key-value pair will be added into path as params
uncompletedRequest = uncompletedRequest.params(params);////there is also method param() to set single key-value param.
// as the method shown, this method is to set request body for post and put request.
uncompletedRequest = uncompletedRequest.body(body);
Next step is to send request.
// four method relevant to for request type: get, post, put and delete.
// get response for data processing.
Response response=uncompletedRequest.get(uri);//if BaseURI is set. here we can pass partial uri like "/greeting"
// four method relevant to for request type: get, post, put and delete.
// get response for data processing.
Response response=uncompletedRequest.get(uri);//if BaseURI is set. here we can pass partial uri like "/greeting"
Rest-assured provide simple way to do data validation.
//{"lotto":{"lottoId":5,"name":"Li, Si"}} just for simple example
response.then().statusCode(200).body("lotto.lottoId");
//{"lotto":{"lottoId":5,"name":"Li, Si"}} just for simple example
response.then().statusCode(200).body("lotto.lottoId");
Also we can get many details by calling methods of Response
response.getStatusCode();
response.getBody();
response.getCookies();
response.getBody().jsonPath();//for some un-standard service, this is a good way to analyze the received json data.
response.getStatusCode();
response.getBody();
response.getCookies();
response.getBody().jsonPath(); //for some un-standard service, this is a good way to analyze the received json data.
For more details, please refer tohttps://github.com/rest-assured/rest-assured/wiki/Usage
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