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Visual FoxPro Requires Chilkat v11.5.0+

curl POST with JSON Input and JSON Output

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Demonstrates running a simple curl command with JSON input and JSON output.

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Visual FoxPro
LOCAL lnSuccess
LOCAL loSbTargetCurl
LOCAL loHttpCurl
LOCAL loResponseJson
LOCAL lnStatusCode
LOCAL lcTargetCurl

lnSuccess = 0

*  Run the following curl command

*   curl -X POST https://httpbin.org/post \
*        -H "Content-Type: application/json" \
*        -d '{
*              "title": "foo",
*              "body": "bar",
*              "userId": 1
*            }'

*  The backslashes at the end of lines are not required.  Chilkat ignores them if present.
loSbTargetCurl = CreateObject('Chilkat.StringBuilder')
loSbTargetCurl.AppendLn(" curl -X POST https://httpbin.org/post \")
loSbTargetCurl.AppendLn('      -H "Content-Type: application/json" \')
loSbTargetCurl.AppendLn("      -d '{")
loSbTargetCurl.AppendLn('            "title": "foo",')
loSbTargetCurl.AppendLn('            "body": "bar",')
loSbTargetCurl.AppendLn('            "userId": 1')
loSbTargetCurl.AppendLn("          }'")

loHttpCurl = CreateObject('Chilkat.HttpCurl')

*  Run the curl command.
lnSuccess = loHttpCurl.DoYourThing(loSbTargetCurl.GetAsString())
IF (lnSuccess = 0) THEN
    ? loHttpCurl.LastErrorText
    RELEASE loSbTargetCurl
    RELEASE loHttpCurl
    CANCEL
ENDIF

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

loHttpCurl.GetResponseJson(loResponseJson)

lnStatusCode = loHttpCurl.StatusCode
? "response status code: " + STR(lnStatusCode)

? loResponseJson.Emit()

*  Output:

*  response status code: 200
*  {
*    "args": {},
*    "data": "{\r\n            \"title\": \"foo\",\r\n            \"body\": \"bar\",\r\n            \"userId\": 1\r\n          }",
*    "files": {},
*    "form": {},
*    "headers": {
*      "Content-Length": "96",
*      "Content-Type": "application/json",
*      "Host": "httpbin.org",
*      "X-Amzn-Trace-Id": "Root=1-69e8db8b-459b3bdf7b7a3bc749184968"
*    },
*    "json": {
*      "body": "bar",
*      "title": "foo",
*      "userId": 1
*    },
*    "origin": "123.222.222.222",
*    "url": "https://httpbin.org/post"
*  }

*  ----------------------------------------------------------------------------------
*  Another example:

*  curl -X POST https://postman-echo.com/post \
*       -H "Content-Type: application/json" \
*       -d '{"foo":"bar"}'

lcTargetCurl = 'curl -X POST https://postman-echo.com/post -H "Content-Type: application/json" -d '{"foo":"bar"}''

*  Run the curl command.
lnSuccess = loHttpCurl.DoYourThing(lcTargetCurl)
IF (lnSuccess = 0) THEN
    ? loHttpCurl.LastErrorText
    RELEASE loSbTargetCurl
    RELEASE loHttpCurl
    RELEASE loResponseJson
    CANCEL
ENDIF

loHttpCurl.GetResponseJson(loResponseJson)

lnStatusCode = loHttpCurl.StatusCode
? "response status code: " + STR(lnStatusCode)

? loResponseJson.Emit()

*  Output:

*  response status code: 200
*  {
*    "args": {},
*    "data": {
*      "foo": "bar"
*    },
*    "files": {},
*    "form": {},
*    "headers": {
*      "host": "postman-echo.com",
*      "content-length": "13",
*      "content-type": "application/json",
*      "x-forwarded-proto": "https",
*      "accept-encoding": "gzip, br"
*    },
*    "json": {
*      "foo": "bar"
*    },
*    "url": "https://postman-echo.com/post"
*  }

RELEASE loSbTargetCurl
RELEASE loHttpCurl
RELEASE loResponseJson