(Go) 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 Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    rest := chilkat.NewRest()

    // 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 {
        fmt.Println(rest.LastErrorText())
        jsonToken.DisposeJsonObject()
        rest.DisposeRest()
        return
    }

    sbAuth := chilkat.NewStringBuilder()
    sbAuth.Append("Bearer ")
    sbAuth.Append(*jsonToken.StringOf("access_token"))
    rest.SetAuthorization(sbAuth.GetAsString())

    rest.AddHeader("Accept","application/json")
    rest.SetAllowHeaderFolding(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.LastMethodSuccess() != true {
        fmt.Println(rest.LastErrorText())
        jsonToken.DisposeJsonObject()
        rest.DisposeRest()
        sbAuth.DisposeStringBuilder()
        return
    }

    // We should expect a 200 response if successful.
    if rest.ResponseStatusCode() != 200 {
        fmt.Println("Request Header: ")
        fmt.Println(rest.LastRequestHeader())
        fmt.Println("----")
        fmt.Println("Response StatusCode = ", rest.ResponseStatusCode())
        fmt.Println("Response StatusLine: ", rest.ResponseStatusText())
        fmt.Println("Response Header:")
        fmt.Println(rest.ResponseHeader())
        fmt.Println(*responseBody)
        jsonToken.DisposeJsonObject()
        rest.DisposeRest()
        sbAuth.DisposeStringBuilder()
        return
    }

    // Load the JSON response into a JSON object for parsing.
    // A sample JSON response is shown below.
    json := chilkat.NewJsonObject()
    json.SetEmitCompact(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
    for i < numRecords {

        json.SetI(i)
        fmt.Println("Name: ", *json.StringOf("QueryResponse.Customer[i].FullyQualifiedName"))
        fmt.Println("Id: ", *json.StringOf("QueryResponse.Customer[i].Id"))
        fmt.Println("City: ", *json.StringOf("QueryResponse.Customer[i].BillAddr.City"))
        fmt.Println("----")
        i = i + 1
    }

    fmt.Println("Success.")

    jsonToken.DisposeJsonObject()
    rest.DisposeRest()
    sbAuth.DisposeStringBuilder()
    json.DisposeJsonObject()