Several people asked me how to implement a custom JSON Service Broker for K2. There are a few examples out there, but this is a quick reference that will get you up and running.
The first step is to create a custom K2 Service Broker. To create a basic service broker, follow the steps in the previous blog post – “How to create a custom service broker”
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Then, follow the steps below to implement the K2 JSON Service Broker that allows us to read JSON data and display it in a K2 SmartForm.
Step 1: Create a List Method.
After you created your custom K2 Service Broker as described in the blog post mentioned above, implement your List method:
1-List method
Step 2: Create the request to the URL.
Here we send the request to the web service to get the JSON data back.
2- Web Request
The URL would be the web service URL that contains the JSON data. After getting the JSON data back, we need to deserialize it into an object.
Step 3: Deserialize the JSON object into a Root Class.
Because we know how the object looks like – we created a class for the JSON data- we can handle the data better and increase the performance of the List method.
3-Deserialized
Step 4: Iterate through the JSON list data.
After deserialising the object, iterate through the RootContract.Contracts and set the JSON data to the K2 Service Broker’s properties.
4-Iterate through objects
Here is a full example of the code when we deserialize the object and iterating through them.
5-Full code sample