![]() ![]() The problem in generating JSON like this is that you may have text formatting that requires special encoding. Serialize a value, object or collectionĪlthough it's not very difficult to generate JSON strings in code directly using something like this: lcName = "Rick".To generate that JSON you have a couple of options: If you need to pass some data to the server, you have to send JSON. LcJson = loHttp.HttpGet(lcBaseUrl + "customer.csvc?id=" + lcCustomerId) To retrieve an individual customer, the logic is pretty much the same: lcCustomerId = "_4FG12Y7UD" You can then iterate over the collection and do as you please with the data. You can then use wwJsonSerializer to deserialize the JSON of the customer list into a collection. ? loCustomer.Company + " " + TRANSFORM(loCustomer.Entered)įirst you use the wwHttp Class to access the API and retrieve the raw JSON HTTP response. LoCustList = loSer.DeserializeJson(lcJson) *** Deserialize customer list into a collection LcJson = loHttp.HttpGet(lcBaseUrl + "customers.csvc") LcBaseUrl = " loHttp = CREATEOBJECT("wwHttp") *** Load Libraries and dependenciesĭO (VFPS://Topic/_1WU18OWBA) Let's start by retrieving the list customer list from the server. In order to consume a JSON API you can use Web Connection's client tools (or the West Wind Client Tools) to provide the HTTP access as well as the JSON deserialization functionality to turn the JSON data into something you can use in FoxPro. Consuming an HTTP API in Visual FoxPro with Web Connection/Client Tools In the next step I'll create a small Angular Application that demonstrates using this API from JavaScript. In this topic I'll demonstrate how you can use a FoxPro client over the Internet to connect and consume data and interact with this service. Any application, device or gadget that can send HTTP requests. ![]() ![]() ![]() Visual FoxPro Desktop or Web Application.So it's possible to call the API from many different client technologies The benefit of creating an API is that you can reuse the API across many platforms. In the real world you'll want to consume the data returned from the API in a real application. So far we've seen how to publish the JSON API that allows us to display a list of customers and view, edit, update and delete individual customers. ![]()
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