您可以使用以下代码示例获取Market的高水位标记和字段定义元数据：

1. 获取高水位标记

HTTP请求

GET /rest/v1/activities/pagingtoken.json HTTP/1.1 Host: Authorization: Bearer Content-Type: application/json Accept: application/json

响应正文

{ "nextPageToken": "1517296924|a5GFMhDMX3hu|f9b88137-d424-43f7-bc36-7ca2c91c5940:10", "nextPageTokenExpirationUtc": "2019-08-06T19:22:04Z" }

2. 获取字段定义元数据

HTTP请求

GET /rest/v1/leads/describe.json HTTP/1.1 Host: Authorization: Bearer Content-Type: application/json Accept: application/json

响应正文

{ "result": [ { "dataType": "string", "externalName": "SFDC Id", "rest": { "name": "sfdcId" }, "soap": { "name": "Id", "type": "xsd:string", "nillable": true }, "maxLength": 20, "name": "sfdcId", "readOnly": true, "updateable": false, "createable": false, "hidden": false, "custom": false, "default": null, "nullable": true } ] }