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Jun Ke The Apex class does not appear to be calling the REST endpoint using HttpRequest.
Hi All,
I am doing Apex Rest Callouts in Trailhead Apex Integration Service Module.
https://developer.salesforce.com/trailhead/force_com_dev_intermediate/apex_integration_services/apex_integration_rest_callouts
This is AnimalLocator class.
I am doing Apex Rest Callouts in Trailhead Apex Integration Service Module.
https://developer.salesforce.com/trailhead/force_com_dev_intermediate/apex_integration_services/apex_integration_rest_callouts
This is AnimalLocator class.
public class AnimalLocator{
public static String getAnimalNameById(Integer x){
Http h = new Http();
HttpRequest req = new HttpRequest();
req.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals/' + x);
req.setMethod('GET');
HttpResponse res = h.send(req);
Map<String, Object> results = (Map<String, Object>)JSON.deserializeUntyped(res.getBody());
Map<String, Object> animal = (Map<String, Object>) results.get('animal');
return (String)animal.get('name');
}
}
However, I was encountered this error when checking challenge.
Challenge Not yet complete... here's what's wrong: The Apex class does not appear to be calling the REST endpoint using HttpRequest.I have no idea what it means, but I have call the REST endpoint.
You are doing everything correctly. There's a stupid issue that I've corrected. In the meantime, if you change line #3 in AnimalLocatior to the following (plus an other dependent code) it will work:
Thanks
Jeff Douglas
Trailhead Developer Advocate
All Answers
Please ensure your end point url should be stored in remote site settings of the org which you have connected with Trailhead.
https://th-apex-http-callout.herokuapp.com
I have added the endpoint to the remote site settings.
And I have executed the code, it returns. It also passed the test execution.
You are doing everything correctly. There's a stupid issue that I've corrected. In the meantime, if you change line #3 in AnimalLocatior to the following (plus an other dependent code) it will work:
Thanks
Jeff Douglas
Trailhead Developer Advocate
@isTest global class AnimalLocatorMock implements HttpCalloutMock { // Implement this interface method global HTTPResponse respond(HTTPRequest request) { // Create a fake response HttpResponse response = new HttpResponse(); response.setHeader('Content-Type', 'application/json'); response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}'); response.setStatusCode(200); return response; } } @isTest private class AnimalLocatorTest { @isTest static void testGetCallout() { // Set mock callout class Test.setMock(HttpCalloutMock.class, new AnimalLocatorMock ()); string animal_name = AnimalLocator.getAnimalNameById(1); String expectedValue = 'chicken'; System.assertEquals(animal_name, expectedValue); } }Try changing line #6 in your code to the correct answer chosen (in green) by Steven Ke. That should do the trick.
Jeff Douglas
Trailhead Developer Advocate
I am not sure how that would work. You are asking me to replace HttpResponse response = new HttpResponse(); with Http http = new Http();.
Anyways I still tried that and as expected it did not allow me to save the change because the code is expecting an object of type HttpResponse and not of type Http.
Mohsin
I'm having trouble as well (first due to a namespace in my Dev org), then similar to above.
Could it be that your expected value is asserting only 1 item "Chicken" while the response comes back with id, name, eats ... ?
@Jeff, what do you think is the problem here?
Try removing the space between 'AnimalLocatorMock' and the brackets() in line 18 of your code above. That did the trick for me. So basically you should have
Test.setMock(HttpCalloutMock.class, new AnimalLocatorMock());
instead of
Test.setMock(HttpCalloutMock.class, new AnimalLocatorMock ());
Thanks
Yash
I am gettiing unexcepted token @ ----- at second isTest line,
please resolve...,
I am new and i have been trying this challenge. I understand since it is going to be only one object that is returned by through the body of response. the OP has used "Map<String, Object> animal = (Map<String, Object>) results.get('animal');"
I am wondering like in the tutorial, if we use the List Map instead of just Map. will we get the same result. i tried it but it threw an error saying attempting to de reference a null object. can anyone give clarification on this.
I have a similar test class but iam getting an Error message
unexcepted token:@ at 14th line
The Apex test class 'AnimalLocatorTest' does not appear to be using the AnimalLocatorMock class correctly."
Callout Class
global class AnimalLocator
{
public class Animal {
public Integer id;
public String name;
public String eats;
public String says;
}
public class AnimalResult {
public Animal animal;
}
public Static String getAnimalNameById(integer id)
{
List<Object> animal;
String returnValue ;
AnimalResult result;
Http http=new Http();
HttpRequest request =new HttpRequest();
request.setEndPoint('https://th-apex-http-callout.herokuapp.com/animals/'+id);
request.setMethod('GET');
request.setHeader('Content-Type', 'application/json;charset=UTF-8');
//request.setBody('{"id":"'+id+'"}');
HttpResponse response= http.send(request);
if(response.getStatusCode()==200)
{
result = (AnimalResult) JSON.deserialize(response.getBody(), AnimalResult.class);
}
return result.animal.name;
}
}
MOCKResponse Class
@isTest
global class AnimalLocatorMock implements HttpCallOutMock
{
public static HTTPResponse respond(HttpRequest req)
{
HTTPResponse response =new HTTPResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
response.setStatusCode(200);
return response;
}
}
Test Class
@isTest
public class AnimalLocatorTest
{
public static testMethod void mytestMethod()
{
Test.SetMock(HttpCallOutMock.class, new AnimalLocatorMock());
String res= AnimalLocator.getAnimalNameById(1);
String expectedValue = 'chicken';
System.assertEquals(res, expectedValue);
}
}
the code where you call the mock class in your test class has an extra space which is causing the issue. try removing that extra space.
Currently your code is:
Test.SetMock(HttpCallOutMock.class, new AnimalLocatorMock());
but it should be
Test.SetMock(HttpCallOutMock.class, new AnimalLocatorMock());
Please try this and let me know if this works or not.
the reason why list<map> wont work is because the JSON response from the HTTPCallout returns a single object instead of an array of object. We use list when we expect array of object being returned by the HTTPCallout. This is the JSON response that we get from the HTTPCallout that we are making in this example.
{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}
Thanks , it worked. :)
My main class:-
public class AnimalLocator {
public static String getAnimalNameById(Integer id){
Http http = new http();
HttpRequest request = new HttpRequest();
request.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals/'+id);
request.setMethod('GET');
HttpResponse response = http.send(request);
List<Object> animals = NULL;
String returnValue = NULL;
System.debug('Response Body####'+response.getBody());
System.debug('Response Code####'+response.getStatusCode());
// If the respose is successful then JSON deserialize it
if(response.getStatusCode() == 200){
Map<String, Object> result = (Map<String, Object>) JSON.deserializeUntyped(response.getBody());
animals = (list<Object>) result.get('animals');
System.debug('animals');
}
//if(animals.size()>0 && animals!= NULL && id< animals.size()){
returnvalue = (String)animals.get(id);
// }
return returnvalue;
}
}
MOCK class
@isTest
global class AnimalLocatorMock implements HttpCalloutMock {
// Implement this interface method
global HTTPResponse respond(HTTPRequest request) {
// Create a fake response
HttpResponse response = new HttpResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
response.setStatusCode(200);
return response;
}
}
My Test Class
@isTest
global class AnimalLocatorMock implements HttpCalloutMock {
// Implement this interface method
global HTTPResponse respond(HTTPRequest request) {
// Create a fake response
HttpResponse response = new HttpResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
response.setStatusCode(200);
return response;
}
}
Hello,
Error : Challenge Not yet complete... here's what's wrong:
There was an unexpected error in your org which is preventing this assessment check from completing: System.NullPointerException: Attempt to de-reference a null object
Class : AnimalLocator
public class AnimalLocator {
public static string getAnimalNameById(Integer x){
Http http = new Http();
HttpRequest request = new HttpRequest();
request.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals');
request.setMethod('GET');
Map<String, Object>animal= new Map<String,Object>();
HttpResponse response=http.send(request);
if (response.getStatusCode() == 200) {
// Deserializes the JSON string into collections of primitive data types.
Map<String, Object> results = (Map<String, Object>) JSON.deserializeUntyped(response.getBody());
animal = (Map<String, Object>) results.get('animal');
}
return(String)animal.get('name');
}
}
Class : AnimalLocatorTest
@isTest
private class AnimalLocatorTest{
@isTest static void AnimalLocatorMock1() {
Test.SetMock(HttpCallOutMock.class, new AnimalLocatorMock());
string result=AnimalLocator.getAnimalNameById(3);
string expectedResult='chicken';
System.assertEquals(result, expectedResult);
}
}
Class : AnimalLocatorMock
@isTest
global class AnimalLocatorMock implements HttpCalloutMock {
global HTTPResponse respond(HTTPRequest request) {
HttpResponse response = new HttpResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
response.setStatusCode(200);
return response;
}
}
Can some one help me here please.
request.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals/' + x);Jeff Douglas
Trailhead Developer Advocate
Just copy and paste run the class, run test class and finally, run all test.
I will work fine.
//Main Class
public class AnimalLocator{
public static string getAnimalNameById(Integer id) {
Http http = new Http();
HttpRequest hreq = new HttpRequest();
hreq.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals/'+id);
hreq.setMethod('GET');
HttpResponse res = http.send(hreq);
Map<String,Object> animals = new Map<String,Object>();
if (res.getStatusCode() == 200) {
Map<String,Object> results = (Map<String,Object>)JSON.deserializeUntyped(res.getBody());
animals = (Map<String,Object>)results.get('animal');
}
else{System.debug('The status code returned was not expected: ' + res.getStatusCode() + ' ' + res.getStatus());}
return (string)animals.get('name');
}
}
************************************************************************************
//Mock Class
@isTest
global class AnimalLocatorMock implements HttpCalloutMock{
global HTTPResponse respond(HTTPRequest request) {
HttpResponse response = new HttpResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
//response.setBody('{"animal":{"id":1,"name":"chicken"}}');
response.setStatusCode(200);
return response;
}
}
*******************************************************************************************
//The Test Class
@isTest
private class AnimalLocatorTest{
@isTest static void AnimalsCalloutsTest() {
Test.setMock(HttpCalloutMock.class, new AnimalLocatorMock());
String ALresult = AnimalLocator.getAnimalNameById(1);
String expectedValue = 'chicken';
System.assertEquals(ALresult, expectedValue);
}
}
**********************************************************************************************
I am getting the above error while submitting the challeneg apext rest callout.
can anyone help?
public class AnimalLocator{
public static string getAnimalNameById(Integer id) {
Http http = new Http();
HttpRequest hreq = new HttpRequest();
hreq.setEndpoint('https://th-apex-http-callout.herokuapp.com/animals/'+id);
hreq.setMethod('GET');
HttpResponse res = http.send(hreq);
Map<String,Object> animals = new Map<String,Object>();
if (res.getStatusCode() == 200) {
Map<String,Object> results = (Map<String,Object>)JSON.deserializeUntyped(res.getBody());
animals = (Map<String,Object>)results.get('animal');
}
else{System.debug('The status code returned was not expected: ' + res.getStatusCode() + ' ' + res.getStatus());}
return (string)animals.get('name');
}
}
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@isTest
global class AnimalLocatorMock implements HttpCalloutMock{
global HTTPResponse respond(HTTPRequest request) {
HttpResponse response = new HttpResponse();
response.setHeader('Content-Type', 'application/json');
response.setBody('{"animal":{"id":1,"name":"chicken","eats":"chicken food","says":"cluck cluck"}}');
response.setStatusCode(200);
return response;
}
}
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@isTest
private class AnimalLocatorTest{
@isTest static void AnimalsCalloutsTest() {
Test.setMock(HttpCalloutMock.class, new AnimalLocatorMock());
String ALresult = AnimalLocator.getAnimalNameById(1);
String expectedValue = 'chicken';
System.assertEquals(ALresult, expectedValue);
}
}