In this blog I want to describe what are the service Microsoft provide to working with Dynamics 365. We may still use in most of our projects SDK.REST or XRMServiceToolkit, $Ajax post . Its time to replace those code and use Web API.

Agenda

• Key Points Organization Service.
• Key Points Organization Data Service.
• Key points Web API.
• Differences between Organization Data Service and Web API.
• Differences between Organization Service and Web API
• Sample code of WEB API and start using WEB API

Organization Service

• Implement IOrganization Service Interface
• Also known as SOAP endpoint means request/response are SOAP format.
• Primary used for retrieve data and metadata from MSCRM Organization.
• Return maximum 5000 record for single request.
• Required Additional Assembly to get the reference of IOrganization Service.
• Need to write code to authenticate MS Dynamics CRM.
• All Client does not supported Organization Service.
• Might be gradually deprecated in Dynamics 365 future release.

Deprecated Organization Data Service

• Implements OData Version 2.
• Use WCF Rest Endpoint.
• Access Entity Data using URL
• Support request and response JSON and ATOM
• No need to write code for Authentication.
• Required third party helper file in JavaScript (XRMServicetoolkit) or SDKRest.
• Easy to consume service from JavaScript.
• Return maximum 50 record in a single request.
• Primary used for Create, Retrieve, Update , Delete , Associate , Disassociate.
• We can not retrieve metadata of the entity using Organization Data Service.
• Deprecated with Dynamics 365 in new version of MS Dynamics 365.

Using Web API

• Implements OData Version 4
• Use WCF Rest Endpoint.
• Access entity data using URL.
• Support request and response JSON ,TEXT, XML
• No need to write code for Authentication.
• Easy to consume service from JavaScript.
• Return maximum 5000 record in a single request.
• Primary used for Create, Retrieve, Update , Delete , Associate , Disassociate, retrieve metadata of the entity.

Differences Web API and Organization Service

Format

Differences Organization Data Service and Web API

Format

https://github.com/jlattimer/CRMRESTBuilder

After download the CRMRestBuilder solution you need  import the solution in your CRM instance . You will find the button in top ribbon of Customization/solution Area in CRM instance.

Click on the button and it will redirect to you another window where you can choose your entity, attributes , filter ,Order by  as well as the type of request . It will give you the generate code . Here is sample screenshot .

Hope this helps