I want to get a list of all InventoryItems According to this document: https://system.netsuite.com/help/helpcenter/en_US/Output/Help/SuiteCloudCustomizationScriptingWebServices/SuiteTalkWebServices/getAll.html

I'm forming the following request:

<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:platformMsgs="urn:platform_2013_1.webservices.netsuite.com" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
    <env:Header>
        <passport>
            <email>******</email>
            <password>******</password>
            <account>******</account>
        </passport>
    </env:Header>
    <env:Body>
        <platformMsgs:getAll>
            <recordType>InventoryItem</recordType>
        </platformMsgs:getAll>
    </env:Body>
</env:Envelope>

But receiving response with the error:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <soapenv:Header>
        <platformMsgs:documentInfo xmlns:platformMsgs="urn:messages_2013_1.platform.webservices.netsuite.com">
            <platformMsgs:nsId>WEBSERVICES_969904_100920131651936419141601801_cbf1690968b43</platformMsgs:nsId>
        </platformMsgs:documentInfo>
  </soapenv:Header>
  <soapenv:Body>
      <getAllResponse xmlns="urn:platform_2013_1.webservices.netsuite.com">
          <platformCore:getAllResult xmlns:platformCore="urn:core_2013_1.platform.webservices.netsuite.com">
              <platformCore:status isSuccess="false">
                  <platformCore:statusDetail type="ERROR">
                      <platformCore:code>GETALL_RCRD_TYPE_REQD</platformCore:code>
                      <platformCore:message>The getAll record type is required.</platformCore:message>
                  </platformCore:statusDetail>
              </platformCore:status>
          </platformCore:getAllResult>
      </getAllResponse>
   </soapenv:Body>
</soapenv:Envelope>

I've tried to request currencies, states - the response always the same

I've tried following variants:

<GetAllRecordType>inventoryItem</GetAllRecordType>

and

<recordType>inventoryItem</recordType>

and

<GetAllRecordType>currency</GetAllRecordType>

and

<recordType>currency</recordType>

with the same response:

 <platformCore:message>The getAll record type is required.</platformCore:message>

According to https://webservices.netsuite.com/xsd/platform/v2013_2_0/coreTypes.xsd - I've specified correctly recordType (btw I've also tried without any success)

I'm using ruby and there is no complete library for ruby. The one that is exists doesn't contain almost all things I'm going to use.

Can someone help me what I'm doing wrong or may be someone have working example