(PowerShell) curl POST with JSON Input and JSON Output

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Note: This example requires Chilkat v11.5.0 or greater.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# 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.
$sbTargetCurl = New-Object Chilkat.StringBuilder
$sbTargetCurl.AppendLn(" curl -X POST https://httpbin.org/post \`")
$sbTargetCurl.AppendLn("      -H `"Content-Type: application/json`" \`")
$sbTargetCurl.AppendLn("      -d '{")
$sbTargetCurl.AppendLn("            `"title`": `"foo`",")
$sbTargetCurl.AppendLn("            `"body`": `"bar`",")
$sbTargetCurl.AppendLn("            `"userId`": 1")
$sbTargetCurl.AppendLn("          }'")

$httpCurl = New-Object Chilkat.HttpCurl

# Run the curl command.
$success = $httpCurl.DoYourThing($sbTargetCurl.GetAsString())
if ($success -eq $false) {
    $($httpCurl.LastErrorText)
    exit
}

$responseJson = New-Object Chilkat.JsonObject
$responseJson.EmitCompact = $false

$httpCurl.GetResponseJson($responseJson)

$statusCode = $httpCurl.StatusCode
$("response status code: " + $statusCode)

$($responseJson.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"}'

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

# Run the curl command.
$success = $httpCurl.DoYourThing($targetCurl)
if ($success -eq $false) {
    $($httpCurl.LastErrorText)
    exit
}

$httpCurl.GetResponseJson($responseJson)

$statusCode = $httpCurl.StatusCode
$("response status code: " + $statusCode)

$($responseJson.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"
# }