• nikolai calder 14
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I am trying to solve the challange of the HTTP and Basic Callout module of Salesforce trailhead and I am having some queries in which you could point to the right direction:

1- The challange asked us to call this URL https://th-apex-http-callout.herokuapp.com/animals/:id in method getAnimalNameById... should that URL be in this form instead of the above https://th-apex-http-callout.herokuapp.com/animals?id ? Where id is a parameter in the URL.

2- When I tried to check the solution of the challange, Salesforce generated that error for me
"Challenge Not yet complete... here's what's wrong: 
Executing the 'getAnimalNameById' method on 'AnimalLocator' failed. Make sure the method exists with the name 'getAnimalNameById', is public and static, accepts an Integer and returns a String."
despite that my class implementation has this method declared as public static String as below in the code snippet:
public class AnimalLocator {
	public static String getAnimalNameById(Integer id) {
		Http http = new Http();
		HttpRequest request = new HttpRequest();
		HttpResponse response = http.send(request);
		List<Object> animals = NULL;
		String returnValue = NULL;
		// if the request was successful, then parse the JSON response
		if (response.getStatusCode() == 200) {
			Map<String, Object> result = (Map<String, Object>) JSON.deserializeUntyped(response.getBody());
			animals = (List<Object>) result.get('animals');
		if (animals.size() > 0 && animals != NULL && id < animals.size()) {
			returnValue = (String) animals.get(id);
		return returnValue;
	} // end getAnimalNameById method
} // end AnimalLocator class

I would appreciate your help in this post.

Thank you,