feat(getMetricValueByName): get metric from label

When using transform, the metrics that are not transformed have their metric name in labels.
gapitio · Feb 23, 2021 · 3fb5bd2 · 3fb5bd2
1 parent cc21775
commit 3fb5bd2
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Showing 3 changed files with 22 additions and 3 deletions.
diff --git a/src/utils/field.ts b/src/utils/field.ts
@@ -1,4 +1,4 @@
-import { Field, FieldCalcs, FieldType, ReducerID } from "@grafana/data";
+import { Field, FieldCalcs, FieldType, Labels, ReducerID } from "@grafana/data";
 
 export const TIME_FIELD = field({
   name: "Time",
@@ -10,15 +10,18 @@ export function field({
   name,
   type,
   calcs,
+  labels,
 }: {
   name: string;
   type: FieldType;
   calcs: FieldCalcs;
+  labels?: Labels;
 }): Field {
   return {
     name,
     type,
     config: {},
+    labels: labels,
     values: {
       length: 0,
       get: (index: number) => {

diff --git a/src/utils/getMetricValueByName.test.ts b/src/utils/getMetricValueByName.test.ts
@@ -41,6 +41,12 @@ window.data = {
           type: FieldType.number,
           calcs: { [ReducerID.last]: 200 },
         }),
+        field({
+          name: "Value",
+          type: FieldType.number,
+          calcs: { [ReducerID.last]: 300 },
+          labels: { name: "label-1" },
+        }),
       ],
       length: 1,
     },
@@ -71,8 +77,14 @@ describe("getMetricValueByName", () => {
   });
 
   describe("field name", () => {
-    it("gets correct value from field names", () => {
+    it("gets correct value from field name", () => {
       expect(getMetricValueByName("field-1")).toEqual(100);
     });
   });
+
+  describe("label name", () => {
+    it("gets correct value from label name", () => {
+      expect(getMetricValueByName("label-1")).toEqual(300);
+    });
+  });
 });
diff --git a/src/utils/getMetricValueByName.ts b/src/utils/getMetricValueByName.ts
@@ -8,7 +8,11 @@ function getSeriesByName(seriesName: string) {
 
 function getFieldByName(fieldName: string): Field | undefined {
   for (const series of data.series) {
-    const valueField = series.fields.find((field) => field.name == fieldName);
+    const valueField = series.fields.find((field) =>
+      [field.name, ...(field.labels ? [field.labels.name] : [])].includes(
+        fieldName
+      )
+    );
     if (valueField) return valueField;
   }
 }