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diff --git a/src/web/api/formatters/value/README.md b/src/web/api/formatters/value/README.md new file mode 100644 index 000000000..3599a836e --- /dev/null +++ b/src/web/api/formatters/value/README.md @@ -0,0 +1,28 @@ +<!-- +title: "Value formatter" +custom_edit_url: https://github.com/netdata/netdata/edit/master/src/web/api/formatters/value/README.md +sidebar_label: "Value formatter" +learn_status: "Published" +learn_topic_type: "References" +learn_rel_path: "Developers/Web/Api/Formatters" +--> + +# Value formatter + +The Value formatter presents [results of database queries](https://github.com/netdata/netdata/blob/master/src/web/api/queries/README.md) as a single value. + +To calculate the single value to be returned, it sums the values of all dimensions. + +The Value formatter respects the following API `&options=`: + +| option | supported | description | +|:----: |:-------: |:---------- | +| `percent` | yes | to replace all values with their percentage over the row total| +| `abs` | yes | to turn all values positive, before using them | +| `min2max` | yes | to return the delta from the minimum value to the maximum value (across dimensions)| + +The Value formatter is not exposed by the API by itself. +Instead it is used by the [`ssv`](https://github.com/netdata/netdata/blob/master/src/web/api/formatters/ssv/README.md) formatter +and [health monitoring queries](https://github.com/netdata/netdata/blob/master/src/health/README.md). + + |