REST API Developer Guide

Introduction to REST API
About REST API
Release Notes
Supported Editions and Required Permissions
REST Resources and Requests
REST API Architecture
Authorization Through External Client Apps or Connected Apps and OAuth 2.0
Headers
Assignment Rule Header
Call Options Header
Compression Headers
Conditional Request Headers
Duplicate Rule Header
Limit Info Header
MRU Header
Package Version Header
Query Options Header
Warning Header
Send REST Requests with cURL
Valid Date and DateTime Formats
Status Codes and Error Responses
API End-of-Life Policy
Quick Start
Examples
Generating an OpenAPI 3.0 Document for sObjects REST API (Beta)
Reference
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Limit Info Header

This response header is returned in each request to REST API (except for calls to the Versions URI, /, which do not count towards your org’s limit). You can use the information to monitor API limits.

Header Field Name and Values

  • Field name: Sforce-Limit-Info
  • Field values:
    • api-usage—Specifies the daily API usage for the organization against which the call was made. The first number is the number of API calls used, and the second number is the API limit for the organization.

    The values returned in the header represent standard REST API limits and usage, except when calls are made using Salesforce Functions. Calls made using Salesforce Functions draw from a Functions-specific allocation.

  • Example: Sforce-Limit-Info: api-usage=10018/100000; api-bursts=1/750 Sforce-Limit-Info: api-usage=10018/100000