Lua Requires Chilkat v9.5.0.65+

Azure Service Bus - Send Batch of Messages to Topic or Queue

See more Azure Service Bus Examples

Shows how to send a batch of messages to a service bus queue or topic. Lua

local chilkat = require("chilkat")

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

-- Make the initial connection.
-- A single REST object, once connected, can be used for many Azure Service Bus REST API calls.
-- The auto-reconnect indicates that if the already-established HTTPS connection is closed,
-- then it will be automatically re-established as needed.
local rest = chilkat.Rest.new()
local bAutoReconnect = true
local success = rest:connect("<yournamespace>.servicebus.windows.net", 443, true, bAutoReconnect)
if not success then
    print(rest.last_error_text)
    return
end

-- ----------------------------------------------------------------------------------------------
-- The code above this comment could be placed inside a function/subroutine within the application
-- because the connection does not need to be made for every request.  Once the connection is made
-- the app may send many requests..
-- ----------------------------------------------------------------------------------------------

-- Let's load a previously computed SAS token and use it.
-- See Azure Shared Access Signature for an example to genenerate an Azure SAS token.
local sbToken = chilkat.StringBuilder.new()
sbToken:load_file("qa_data/tokens/serviceBusSas.txt", "utf-8")

-- Tell the REST object to use the Azure Shared Access Signature for authorization.
sbToken:prepend("SharedAccessSignature ")
rest:add_header("Authorization", sbToken:get_as_string())

-- ----------------------------------------------------------------------------------------------

-- Send to a topic (or queue) named "gilaMonster";
local topicOrQueueName = "gilaMonster"

-- The HTTP request body contains JSON that contains multiple messages.
local json = chilkat.JsonObject.new()
json.i = 0
json:update_string("messages[i].Body", "This is the first message")
json:update_string("messages[i].BrokerProperties.Label", "M1")
json:update_string("messages[i].BrokerProperties.TimeToLiveTimeSpan", "0.00:00:40")

json.i = 1
json:update_string("messages[i].Body", "This is the second message")
json:update_string("messages[i].BrokerProperties.Label", "M2")
json:update_string("messages[i].UserProperties.Priority", "Low")

json.i = 2
json:update_string("messages[i].Body", "This is the third message")
json:update_string("messages[i].BrokerProperties.Label", "M3")
json:update_string("messages[i].UserProperties.Priority", "Medium")
json:update_string("messages[i].UserProperties.Customer", "ABC")

local jsonA = json:array_of("messages")
jsonA.emit_compact = false
print(jsonA:emit())

-- The following JSON array is produced by the above code:

--     [
--       {
--         "Body": "This is the first message",
--         "BrokerProperties": {
--           "Label": "M1",
--           "TimeToLiveTimeSpan": "0.00:00:40"
--         }
--       },
--       {
--         "Body": "This is the second message",
--         "BrokerProperties": {
--           "Label": "M2"
--         },
--         "UserProperties": {
--           "Priority": "Low"
--         }
--       },
--       {
--         "Body": "This is the third message",
--         "BrokerProperties": {
--           "Label": "M3"
--         },
--         "UserProperties": {
--           "Priority": "Medium",
--           "Customer": "ABC"
--         }
--       }
--     ]

local sbRequestBody = chilkat.StringBuilder.new()
jsonA.emit_compact = true
jsonA:emit_sb(sbRequestBody)

-- Build the path..
local sbPath = chilkat.StringBuilder.new()
sbPath:append("/")
sbPath:append(topicOrQueueName)
sbPath:append("/messages")

-- Add timeout and api-version query parameters.
rest:add_query_param("timeout", "20")

-- The Content-Type should be "application/vnd.microsoft.servicebus.json"
rest:add_header("Content-Type", "application/vnd.microsoft.servicebus.json")

local sbResponseBody = chilkat.StringBuilder.new()
success = rest:full_request_sb("POST", sbPath:get_as_string(), sbRequestBody, sbResponseBody)
if not success then
    print(rest.last_error_text)
    return
end

print("Response Status Code = " .. rest.response_status_code)

-- Check for a success response.
if rest.response_status_code ~= 201 then
    print(rest.last_request_start_line)
    print(rest.last_request_header)
    print(sbResponseBody:get_as_string())
    print("Failed.")
    return
end

-- If successful, the 201 response will have no response body.

print("Success.")