GetPageOffset

Method to retrieve previous or next pages after having called the GetPage method.

Service	Operation
entity	GET_PAGE_BY_OFFSET

Usage

http://localhost:3000

C#

string context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
int pageOffset = 1;
SuccessCallback successCallback = (response, cbObject) =>
{
    Debug.Log(string.Format("Success | {0}", response));
};
FailureCallback failureCallback = (status, code, error, cbObject) =>
{
    Debug.Log(string.Format("Failed | {0}  {1}  {2}", status, code, error));
};

_bc.EntityService.GetPageOffset(context, pageOffset, successCallback, failureCallback);

C++

const char *context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
int pageOffset = 1;
_bc->getEntityService()->getPageOffset(context, pageOffset, this);

Objective-C

NSString *context = @"eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
int pageOffset = 1;
BCCompletionBlock successBlock;      // define callback
BCErrorCompletionBlock failureBlock; // define callback

[[_bc entityService] getPageOffset:context
                 pageOffset:pageOffset
            completionBlock:successBlock
       errorCompletionBlock:failureBlock
                   cbObject:nil];

Java

String context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
int pageOffset = 1;
this; // implements IServerCallback

_bc.getEntityService().getPageOffset(context, pageOffset, this);

public void serverCallback(ServiceName serviceName, ServiceOperation serviceOperation, JSONObject jsonData)
{
    System.out.print(String.format("Success | %s", jsonData.toString()));
}
public void serverError(ServiceName serviceName, ServiceOperation serviceOperation, int statusCode, int reasonCode, String jsonError)
{
    System.out.print(String.format("Failed | %d %d %s", statusCode,  reasonCode, jsonError.toString()));
}

JavaScript

var context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
var pageOffset = 1;

_bc.entity.getPageOffset(context, pageOffset, result =>
{
    var status = result.status;
    console.log(status + " : " + JSON.stringify(result, null, 2));
});

Dart

var  context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
var  pageOffset = 1;

ServerResponse result = await _bc.entityService.getPageOffset(context:context, pageOffset:pageOffset);

if (result.statusCode == 200) {
    print("Success");
} else {
    print("Failed ${result.error['status_message'] ?? result.error}");
}

Cloud Code

var context = "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0";
var pageOffset = 1;
var entityProxy = bridge.getEntityServiceProxy();

var postResult = entityProxy.getPageOffset(context, pageOffset);
if (postResult.status == 200) {
    // Success!
}

Raw

{
    "service": "entity",
    "operation": "GET_PAGE_BY_OFFSET",
    "data": {
        "context": "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjp7IiRyZWdleCI6Ii4qaWxkLioiLCIkb3B0",
        "pageOffset": 1
    }
}

JSON Response

{
    "status": 200,
    "data": {
        "_serverTime": 1637946319239,
        "results": {
            "moreBefore": false,
            "count": 200,
            "items": [{
                "entityId": "00edfd8e-5028-45d5-95d4-b1869cf2afaa",
                "entityType": "testEntity",
                "version": 1,
                "data": {
                    "testName": "Test Name 01"
                },
                "acl": {
                    "other": 2
                },
                "createdAt": 1437505537168,
                "updatedAt": 1437505537168
            }],
            "page": 2,
            "moreAfter": false
        },
        "context": "eyJzZWFyY2hDcml0ZXJpYSI6eyJlbnRpdHlUeXBlIjoiYnVpbGRpbmciLCJnYW
        1lSWQiOiIxMDI4NyIsIiRvciI6W3sib3duZXJJZCI6Ijk5MjM4ZmFiLTkxYTItNDdiYy1
        iMDExLWJjMThhN2IyOWY3NiJ9LHsiYWNsLm90aGVyIjp7IiRuZSI6MH19XX0sInNvcnRD
        cml0ZXJpYSI6eyJjcmVhdGVkQXQiOjEsInVwZGF0ZWRBdCI6LTF9LCJwYWdpbmF0aW9uI
        jp7InJvd3NQZXJQYWdlIjo1MCwicGFnZU51bWJlciI6NH0sIm9wdGlvbnMiOm51bGx9"
    }
}

Common Error Code

Status Codes

Code	Name	Description
40383	DECODE_CONTEXT	Unable to decode context

Method Parameters

Parameter	Description
context	The context string returned from the server from a previous call to GetPage or GetPageOffset
pageOffset	The positive or negative page offset to fetch. Uses the last page retrieved using the context string to determine a starting point.