CkPython

HttpPostJson2Async Example

Demonstrates use of the HttpPostJson2Async method. CkPython

import sys
import chilkat

success = False

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code

# See PostJson2 Example for the synchronous equivalent of this example.

http = chilkat.CkHttp()

# Sends a POST equivalent to the following CURL command:

# curl -X POST https://sandbox.plaid.com/institutions/get \
#   -H 'content-type: application/json' \
#   -d '{
#     "client_id": String,
#     "secret":String,
#     "count": Number,
#     "offset": Number
#   }'

# Suppress some default headers that would automatically added..
http.put_AcceptCharset("")
http.put_UserAgent("")
http.put_AcceptLanguage("")
http.put_AllowGzip(False)

jsonBody = "{\"client_id\": \"PLAID_CLIENT_ID\", \"secret\":\"PLAID_SECRET\", \"count\": 10, \"offset\": 0}"
# task is a CkTask
task = http.PostJson2Async("https://sandbox.plaid.com/institutions/get","application/json",jsonBody)
if (http.get_LastMethodSuccess() == False):
    print(http.lastErrorText())
    sys.exit()

# Start the background task.
success = task.Run()
if (not success):
    print(task.lastErrorText())

    sys.exit()

# The application is now free to do anything else
# while the HTTP POST is in progress

# For this example, we'll simply sleep and periodically
# check to see if the HTTP POST is finished.  
while task.get_Finished() != True :
    # Sleep 100 ms.
    task.SleepMs(100)

# When we get here, the task is either finished successfully or not, or was canceled/aborted.

# If the task was "canceled", it was canceled prior to actually starting.  This could
# happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's
# background thread pool scheduler.  

# If the task was "aborted", it indicates that it was canceled while running in a background thread.  
# The ResultErrorText will likely indicate that the task was aborted.

# If the task "completed", then it ran to completion, but the actual success/failure of the method
# is determined by getting the result of the underlying method call.
# A task status of 7 indicates completion.
if (task.get_StatusInt() != 7):
    print("Task did not complete.")
    print("task status: " + task.status())

    sys.exit()

# When called synchronously, the PostJson2 method returns an HTTP response object,
# unless the method failed and there was no response to be had.
# Check to see if PostJson2 method failed (and thus there is no response object).
if (task.get_TaskSuccess() == False):
    print("The underlying task failed, and there is no HTTP response object.")
    print("The LastErrorText for the underlying method call is:")
    print(task.resultErrorText())

    sys.exit()

# To get the HTTP response object, create a new instance and load it with the result from the task.
resp = chilkat.CkHttpResponse()
resp.LoadTaskResult(task)

statusCode = resp.get_StatusCode()
print("Response status code = " + str(statusCode))

# Examine the JSON response..
json = chilkat.CkJsonObject()
json.Load(resp.bodyStr())
json.put_EmitCompact(False)
print("JSON Response Body:")
print(json.emit())