(Ruby) QuickBooks - Query a Customer

Demonstrates how to query QuickBooks customers.

A sample JSON response body is available at Sample Quickbooks Customer Query JSON Response

For more information, see https://developer.intuit.com/app/developer/qbo/docs/api/accounting/all-entities/customer#query-a-customer

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

# Get our previously obtained OAuth2 access token, which should contain JSON like this:
# {
#   "expires_in": 3600,
#   "x_refresh_token_expires_in": 8726400,
#   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
#   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
#   "token_type": "bearer"
# }

jsonToken = Chilkat::CkJsonObject.new()
success = jsonToken.LoadFile("qa_data/tokens/qb-access-token.json")

rest = Chilkat::CkRest.new()

# Connect using TLS.
# A single REST object, once connected, can be used for many Quickbooks 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.
bAutoReconnect = true
success = rest.Connect("sandbox-quickbooks.api.intuit.com",443,true,bAutoReconnect)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

sbAuth = Chilkat::CkStringBuilder.new()
sbAuth.Append("Bearer ")
sbAuth.Append(jsonToken.stringOf("access_token"))
rest.put_Authorization(sbAuth.getAsString())

rest.AddHeader("Accept","application/json")
rest.put_AllowHeaderFolding(false)

query = "select * from Customer"
rest.AddQueryParam("query",query)
rest.AddQueryParam("minorversion","45")

# The company ID is 123146096291789
responseBody = rest.fullRequestNoBody("GET","/v3/company/123146096291789/query")
if (rest.get_LastMethodSuccess() != true)
    print rest.lastErrorText() + "\n";
    exit
end

# We should expect a 200 response if successful.
if (rest.get_ResponseStatusCode() != 200)
    print "Request Header: " + "\n";
    print rest.lastRequestHeader() + "\n";
    print "----" + "\n";
    print "Response StatusCode = " + rest.get_ResponseStatusCode().to_s() + "\n";
    print "Response StatusLine: " + rest.responseStatusText() + "\n";
    print "Response Header:" + "\n";
    print rest.responseHeader() + "\n";
    print responseBody + "\n";
    exit
end

# Load the JSON response into a JSON object for parsing.
# A sample JSON response is shown below.
json = Chilkat::CkJsonObject.new()
json.put_EmitCompact(false)
json.Load(responseBody)

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

# Iterate over each customer returned.
numRecords = json.SizeOfArray("QueryResponse.Customer")
i = 0
while i < numRecords

    json.put_I(i)
    print "Name: " + json.stringOf("QueryResponse.Customer[i].FullyQualifiedName") + "\n";
    print "Id: " + json.stringOf("QueryResponse.Customer[i].Id") + "\n";
    print "City: " + json.stringOf("QueryResponse.Customer[i].BillAddr.City") + "\n";
    print "----" + "\n";
    i = i + 1
end

print "Success." + "\n";