[SalesForce] Returning a value from JSON Object

Hi I am trying to return a second value pair (string) from a JSON object using APEX's own built-in parser. The API query takes a string variable of a web domain.

However, I am getting a strange error I've never seen before:

Line: 7, Column: 0
expecting a semi-colon, found '<EOF>'

Here's my code:

 public class companyIDFetcher {

    public string companyIDFetcher (string domain){ 
        HTTPRequest companyIDRequest = new HTTPRequest();
        companyIDRequest.setEndpoint('https://api.api.com/api/v0/something/something/id?domain_name=' + domain);
        companyIDRequest.setMethod('GET');

        HTTP n = new HTTP();
        HTTPResponse companyIDResponse = n.send(companyIDRequest);
        string MosaicAPIBasicRequest = companyIDResponse.getBody();

        JSONParser parser = JSON.createParser(MosaicAPIBasicRequest);
        parser.nextToken();
        parser.nextToken();
        parser.nextValue();
        String companyID = parser.getText();
        system.debug(companyID);
        return companyID;
    }

Any advice would be appreciated.

Here's a JSON Response that I am receiving when making a http request:

{
  "meta": {
    "number_of_records": 3
  },
  "data": "13458245"
}

Best Answer

try this, Probably you need to change it with the correct field name

String response = '{"meta": {"number_of_records": 3},"data": "13458245"}';

JSONParser parser = JSON.createParser(response);
while (parser.nextToken() != null) {
    if(parser.getCurrentName() == 'number_of_records') {
        parser.nextValue();
        System.debug(parser.getDecimalValue());
    }
}

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[SalesForce] Simple Apex class to return a list of strings

You can't instantiate a List like that using an integer. You don't need to explicitly specify how much items are going into the list when it is created. Instead, just remove the integer:

//Instantiate the list
String[] myArray = new List<String>();

You're logic in your loop seems to be incorrect as well. Specifically, myArray's size will always be 0 when you instantiate it. Change your loop logic to:

for(Integer i=0;i<length;i++) {
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}

You want to generate a List of strings based on the i variable. You will want to change your internal logic to:

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// Write value to the debug log
System.debug(myArray[i]);

Finally, you want to return that Array. You need to change your method so the return type is no longer void by changing its signature:

public static String[] generateStringArray(Integer length)

then it is just a matter of returning that array at the end of your method:

return myArray;

This would bring it all together as:

public class StringArrayTest {
    //Public Method
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        for(Integer i=0;i<length;i++) {
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            myArray.add('Test ' + i);

            // Write value to the debug log
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        } //end loop

        return myArray;
    }//end method       
}// end class

Some more info on Arrays and Lists, Loops, and Class methods for future reference.

[SalesForce] JSON parser is returning nullValue

    String resPostalCode;

Since your string is null, += causes the code to expand to:

resPostalCode = null + '10019-6019';

Instead, make sure your string isn't null first:

Sring resPostalCode = '';

You can void silly mistakes like this by using the more reliable JSON.deserialize method instead.

public class Address {
    public String Address1, Address2, City, State, Zip, DPV;
    public Boolean IsResidential;
}
public class JSONResponse {
    public Address[] Addresses;
    public Boolean IsCASS;
}

...

JSONResponse data = (JSONResponse)JSON.deserialize(res.getBody(), JSONResponse.class);
for(Address addr: data.Addresses) {
    // addr is an Address
}

Best Answer

Related Solutions

[SalesForce] Simple Apex class to return a list of strings

[SalesForce] JSON parser is returning nullValue

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