Query Event Monitoring Data with REST

Use the Query resource to retrieve field values from a record. Specify the fields you want to retrieve in the fields parameter and use the GET method of the resource.

You can use Workbench to query event monitoring data. To retrieve event monitoring records based on LogDate and EventType, in the Execute text box, type:

1/services/data/v32.0/query?q=SELECT+Id+,+EventType+,+LogFile+
2,+LogDate+,+LogFileLength+FROM+EventLogFile+WHERE+
3LogDate+>+Yesterday+AND+EventType+=+'API'

Example raw response

1{ 
2   "totalSize" : 4,
3   "done" : true,
4   "records" : [ {
5     "attributes" : {
6       "type" : "EventLogFile",
7       "url" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000001bROAQ"     }
8     "Id" : "0ATD000000001bROAQ",
9     "EventType" : "API",
10     "LogFile" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000001bROAQ/LogFile",
11     "LogDate" : "2014-03-14T00:00:00.000+0000",
12     "LogFileLength" : 2692.0
13    }, {
14     "attributes" : {
15       "type" : "EventLogFile",
16       "url" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000001SdOAI"     },
17       "Id" : "0ATD000000001SdOAI",
18       "EventType" : "API",
19       "LogFile" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000001SdOAI/LogFile",
20       "LogDate" : "2014-03-13T00:00:00.000+0000",
21       "LogFileLength" : 1345.0
22   }, {
23       "attributes" : {
24        "type" : "EventLogFile",
25        "url" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000003p1OAA"     },
26        "Id" : "0ATD000000003p1OAA",
27        "EventType" : "API",
28        "LogFile" : "/services/data/v32.0/sobjects/EventLogFile/0ATD000000003p1OAA/LogFile",
29        "LogDate" : "2014-06-21T00:00:00.000+0000",
30        "LogFileLength" : 605.0   },
31 {     "attributes" : {
32       "type" : "EventLogFile",
33       "url" : "/services/data/v32.0/sobjects/EventLogFile/0ATD0000000055eOAA"     },
34       "Id" : "0ATD0000000055eOAA",
35       "EventType" : "API",
36       "LogFile" : "/services/data/v32.0/sobjects/EventLogFile/0ATD0000000055eOAA/LogFile",
37       "LogDate" : "2014-07-03T00:00:00.000+0000",
38       "LogFileLength" : 605.0
39     } ]
40}

Force.com REST API Developer's Guide

Query Event Monitoring Data with REST