Visual FoxPro

Iterate JSON where Member Names are Data Values

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Demonstrates how to parse JSON where member names are not keywords, but instead are data values. Visual FoxPro

LOCAL lnSuccess
LOCAL loJson
LOCAL lnNumMembers
LOCAL i
LOCAL lcName
LOCAL loJRecord

lnSuccess = 0

loJson = CreateObject('Chilkat.JsonObject')

lnSuccess = loJson.LoadFile("qa_data/json/valuesAsNames.json")

* Imagine we have JSON such as the following:

* {
*   "1680": {
*     "entity_id": "1680",
*     "type_id": "simple",
*     "sku": "123"
*   },
*   "1701": {
*     "entity_id": "1701",
*     "type_id": "simple",
*     "sku": "456"
*   }
* }
* 

* This presents a parsing problem because the member names, such as "1680"
* are not keywords.  Instead they are data values.  We don't know what they
* may be in advance.  

* To solve, we iterate over the members, get the name of each, ...
lnNumMembers = loJson.Size

FOR i = 0 TO lnNumMembers - 1

    lcName = loJson.NameAt(i)

    ? lcName + ":"
    loJRecord = loJson.ObjectAt(i)

    ? "entity_id: " + loJRecord.StringOf("entity_id")
    ? "type_id: " + loJRecord.StringOf("type_id")
    ? "sku: " + loJRecord.StringOf("sku")

    RELEASE loJRecord

NEXT

RELEASE loJson