85 lines
2.0 KiB
Plaintext
85 lines
2.0 KiB
Plaintext
[role="xpack"]
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[testenv="platinum"]
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[[ml-preview-datafeed]]
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=== Preview {dfeeds} API
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++++
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<titleabbrev>Preview {dfeeds}</titleabbrev>
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++++
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Previews a {dfeed}.
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==== Request
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`GET _ml/datafeeds/<datafeed_id>/_preview`
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==== Description
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The preview {dfeeds} API returns the first "page" of results from the `search`
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that is created by using the current {dfeed} settings. This preview shows the
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structure of the data that will be passed to the anomaly detection engine.
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==== Path Parameters
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`datafeed_id` (required)::
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(string) Identifier for the {dfeed}
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==== Authorization
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If {es} {security-features} are enabled, you must have `monitor_ml`, `monitor`,
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`manage_ml`, or `manage` cluster privileges to use this API. For more
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information, see
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{stack-ov}/security-privileges.html[Security Privileges].
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==== Security Integration
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When {es} {security-features} are enabled, the {dfeed} query is previewed using
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the credentials of the user calling the preview {dfeed} API. When the {dfeed}
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is started it runs the query using the roles of the last user to
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create or update it. If the two sets of roles differ then the preview may
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not accurately reflect what the {dfeed} will return when started. To avoid
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such problems, the same user that creates/updates the {dfeed} should preview
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it to ensure it is returning the expected data.
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==== Examples
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The following example obtains a preview of the `datafeed-farequote` {dfeed}:
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[source,js]
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--------------------------------------------------
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GET _ml/datafeeds/datafeed-farequote/_preview
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--------------------------------------------------
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// CONSOLE
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// TEST[skip:setup:farequote_datafeed]
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The data that is returned for this example is as follows:
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[source,js]
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----
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[
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{
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"time": 1454803200000,
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"airline": "JZA",
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"doc_count": 5,
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"responsetime": 990.4628295898438
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},
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{
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"time": 1454803200000,
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"airline": "JBU",
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"doc_count": 23,
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"responsetime": 877.5927124023438
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},
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{
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"time": 1454803200000,
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"airline": "KLM",
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"doc_count": 42,
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"responsetime": 1355.481201171875
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}
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]
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----
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// TESTRESPONSE
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