Visual FoxPro

DNS Query TXT Records

See more DNS Examples

Shows how to perform a DNS query to retrieve TXT records.

Note: This example requires Chilkat v9.5.0.96 or later.

Visual FoxPro

LOCAL lnSuccess
LOCAL loDns
LOCAL loJson
LOCAL lcName
LOCAL lnTtl
LOCAL lcText
LOCAL i
LOCAL lnCount_i

lnSuccess = 0

loDns = CreateObject('Chilkat.Dns')

loJson = CreateObject('Chilkat.JsonObject')
loJson.EmitCompact = 0

lnSuccess = loDns.Query("TXT","x.com",loJson)
IF (lnSuccess = 0) THEN
    ? loDns.LastErrorText
    RELEASE loDns
    RELEASE loJson
    CANCEL
ENDIF

? loJson.Emit()

*  Sample response.
*  Parsing code below..

*  {
*    "answer": {
*      "txt": [
*        {
*          "name": "x.com",
*          "ttl": 300,
*          "text": "kkdl3qb3tcrmdhfsm803p67r0my0svs8"
*        },
*        {
*          "name": "x.com",
*          "ttl": 300,
*          "text": "v=spf1 ip4:199.16.156.128/26 ip4:199.59.150.64/26 include:_spf.google.com include:spf-008d0a01.pphosted.com -all"
*        },
*        {
*          "name": "x.com",
*          "ttl": 300,
*          "text": "google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g"
*        },
*        {
*          "name": "x.com",
*          "ttl": 300,
*          "text": "google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A"
*        }
*      ]
*    }
*  }

*  Use this online tool to generate parsing code from sample JSON: 
*  Generate Parsing Code from JSON

i = 0
lnCount_i = loJson.SizeOfArray("answer.txt")
DO WHILE i < lnCount_i
    loJson.I = i
    lcName = loJson.StringOf("answer.txt[i].name")
    lnTtl = loJson.IntOf("answer.txt[i].ttl")
    lcText = loJson.StringOf("answer.txt[i].text")
    i = i + 1
ENDDO

RELEASE loDns
RELEASE loJson