[SalesForce] Call REST Webservice in Salesforce from external system

I'm writing a webservice from Salesforce that I can call from an external system, but for my life I cannot remember/find how to successfully call it. I am using a website in order to test the dummy service I created: http://resttesttest.com/

Code:

@RestResource
global with sharing class MyServices
{
    global static String createCase(String pCode, String rType, String subject, String description, String lookupInfo, String aaNum)
    {
      return 'success';
    }
}

What is the minimum info I must put into my call to make this work, or am I going about this completely wrong?

EDIT: I added @RestResource and set up a connected App in my Salesforce org now.

Best Answer

By using the webservice key word you are creating something that is to be exposed through SOAP. You can select the class and use the "Generate WSDL" button to generate the WSDL that external tooling can consume.

If you want to avoid SOAP and WSDL, then make use of the @RestResource annotation instead. This also allows the content to be in JSON format which is generally easy for clients (including JavaScript apps running in the browser) to create and consume.

Note that in both cases the request will have to include some authentication information (see e.g. OAUTH). (But also see BritishBoyinDC's comment.)

Related Solutions

[SalesForce] Bulk data update in Salesforce from External System

Since 6k is not a big data volume, you can go for either bulk API or SOAP API. But please give first preference to Bulk API. Details regarding how to implement Bulk API can be found in below link,

https://developer.salesforce.com/page/Loading_Large_Data_Sets_with_the_Force.com_Bulk_API

SOAP API also can be used. For connecting with SOAP API also there is lot of examples in developerforce. Checkout below link to get details regarding all APIs

https://help.salesforce.com/HTViewHelpDoc?id=integrate_what_is_api.htm

[SalesForce] Attempting to call external service from apex

Per the documentation of the Service Now API you MUST set the 'Accept' header for a GET request so add

http://wiki.servicenow.com/index.php?title=REST_API#Headers

Each of the supported methods can be overridden if you set the X-http-method-override header. The Accept and Content-Type request headers are required for proper data formatting. These request headers have the following valid values:

Accept: application/json, application/xml Content-Type: application/json, application/xml POST, PUT, and PATCH operations require you to provide both headers. The GET and DELETE operations require only the Accept header. Failing to provide the required headers results in a 400 Bad Request error.

try adding

setHeader('Accept','application/json');

Also, here is a known working API from Apex, although the endpoint API requirements may be a bit different.

HttpRequest req = new HttpRequest();
Http http = new Http();

Blob headerValue = Blob.valueOf(credentials.get('Username') + ':' + credentials.get('Password'));
String authorizationHeader = 'BASIC ' +
EncodingUtil.base64Encode(headerValue);
req.setHeader('Authorization', authorizationHeader);
req.setHeader('Content-Type', 'application/x-www-form-urlencoded');


req.setMethod('POST');
req.setBody(....);

String url = ....;

req.setEndPoint(url);

HTTPResponse resp = http.send(req);

Best Answer

Related Solutions

[SalesForce] Bulk data update in Salesforce from External System

[SalesForce] Attempting to call external service from apex

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