diff --git a/x-pack/plugins/monitoring/common/types/es.ts b/x-pack/plugins/monitoring/common/types/es.ts
index 853e140ec66c7..725ff214ae795 100644
--- a/x-pack/plugins/monitoring/common/types/es.ts
+++ b/x-pack/plugins/monitoring/common/types/es.ts
@@ -24,9 +24,40 @@ export interface ElasticsearchSourceKibanaStats {
   };
 }
 
+export interface ElasticsearchSourceLogstashPipelineVertex {
+  id: string;
+  plugin_type: string;
+  stats?: {
+    [key: string]: {
+      data?: any[];
+    };
+  };
+}
+
 export interface ElasticsearchSource {
   timestamp: string;
   kibana_stats?: ElasticsearchSourceKibanaStats;
+  logstash_state?: {
+    pipeline?: {
+      representation?: {
+        graph?: {
+          vertices?: ElasticsearchSourceLogstashPipelineVertex[];
+        };
+      };
+    };
+  };
+  logstash_stats?: {
+    timestamp?: string;
+    logstash?: {};
+    events?: {};
+    reloads?: {};
+    queue?: {
+      type?: string;
+    };
+    jvm?: {
+      uptime_in_millis?: number;
+    };
+  };
   beats_stats?: {
     timestamp?: string;
     beat?: {
diff --git a/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.js b/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.ts
similarity index 65%
rename from x-pack/plugins/monitoring/server/lib/logstash/get_node_info.js
rename to x-pack/plugins/monitoring/server/lib/logstash/get_node_info.ts
index fdfc523e53527..ead8764607786 100644
--- a/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.js
+++ b/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.ts
@@ -4,24 +4,31 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { get, merge } from 'lodash';
+import { merge } from 'lodash';
+// @ts-ignore
 import { checkParam } from '../error_missing_required';
-import { calculateAvailability } from './../calculate_availability';
+// @ts-ignore
+import { calculateAvailability } from '../calculate_availability';
+import { LegacyRequest, ElasticsearchResponse } from '../../types';
 
-export function handleResponse(resp) {
-  const source = get(resp, 'hits.hits[0]._source.logstash_stats');
-  const logstash = get(source, 'logstash');
+export function handleResponse(resp: ElasticsearchResponse) {
+  const source = resp.hits?.hits[0]?._source?.logstash_stats;
+  const logstash = source?.logstash;
   const info = merge(logstash, {
-    availability: calculateAvailability(get(source, 'timestamp')),
-    events: get(source, 'events'),
-    reloads: get(source, 'reloads'),
-    queue_type: get(source, 'queue.type'),
-    uptime: get(source, 'jvm.uptime_in_millis'),
+    availability: calculateAvailability(source?.timestamp),
+    events: source?.events,
+    reloads: source?.reloads,
+    queue_type: source?.queue?.type,
+    uptime: source?.jvm?.uptime_in_millis,
   });
   return info;
 }
 
-export function getNodeInfo(req, lsIndexPattern, { clusterUuid, logstashUuid }) {
+export function getNodeInfo(
+  req: LegacyRequest,
+  lsIndexPattern: string,
+  { clusterUuid, logstashUuid }: { clusterUuid: string; logstashUuid: string }
+) {
   checkParam(lsIndexPattern, 'lsIndexPattern in getNodeInfo');
 
   const params = {
diff --git a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.js b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.ts
similarity index 78%
rename from x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.js
rename to x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.ts
index 2977159f4206d..0461d69e3d68d 100644
--- a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.js
+++ b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline.ts
@@ -6,16 +6,24 @@
 
 import boom from '@hapi/boom';
 import { get } from 'lodash';
+// @ts-ignore
 import { checkParam } from '../error_missing_required';
 import { getPipelineStateDocument } from './get_pipeline_state_document';
+// @ts-ignore
 import { getPipelineStatsAggregation } from './get_pipeline_stats_aggregation';
+// @ts-ignore
 import { calculateTimeseriesInterval } from '../calculate_timeseries_interval';
+import { LegacyRequest } from '../../types';
+import {
+  ElasticsearchSource,
+  ElasticsearchSourceLogstashPipelineVertex,
+} from '../../../common/types/es';
 
 export function _vertexStats(
-  vertex,
-  vertexStatsBucket,
-  totalProcessorsDurationInMillis,
-  timeseriesIntervalInSeconds
+  vertex: ElasticsearchSourceLogstashPipelineVertex,
+  vertexStatsBucket: any,
+  totalProcessorsDurationInMillis: number,
+  timeseriesIntervalInSeconds: number
 ) {
   const isInput = vertex.plugin_type === 'input';
   const isProcessor = vertex.plugin_type === 'filter' || vertex.plugin_type === 'output';
@@ -27,8 +35,11 @@ export function _vertexStats(
 
   const durationInMillis = vertexStatsBucket.duration_in_millis_total.value;
 
-  const processorStats = {};
-  const eventsProcessedStats = {
+  const processorStats: any = {};
+  const eventsProcessedStats: {
+    events_out_per_millisecond: number;
+    events_in_per_millisecond?: number;
+  } = {
     events_out_per_millisecond: eventsOutTotal / timeseriesIntervalInMillis,
   };
 
@@ -63,14 +74,14 @@ export function _vertexStats(
  * @param {Integer} timeseriesIntervalInSeconds The size of each timeseries bucket, in seconds
  */
 export function _enrichStateWithStatsAggregation(
-  stateDocument,
-  statsAggregation,
-  timeseriesIntervalInSeconds
+  stateDocument: ElasticsearchSource,
+  statsAggregation: any,
+  timeseriesIntervalInSeconds: number
 ) {
   const logstashState = stateDocument.logstash_state;
-  const vertices = logstashState.pipeline.representation.graph.vertices;
+  const vertices = logstashState?.pipeline?.representation?.graph?.vertices ?? [];
 
-  const verticesById = {};
+  const verticesById: any = {};
   vertices.forEach((vertex) => {
     verticesById[vertex.id] = vertex;
     vertex.stats = {};
@@ -82,7 +93,7 @@ export function _enrichStateWithStatsAggregation(
 
   const verticesWithStatsBuckets =
     statsAggregation.aggregations.pipelines.scoped.vertices.vertex_id.buckets;
-  verticesWithStatsBuckets.forEach((vertexStatsBucket) => {
+  verticesWithStatsBuckets.forEach((vertexStatsBucket: any) => {
     // Each vertexStats bucket contains a list of stats for a single vertex within a single timeseries interval
     const vertexId = vertexStatsBucket.key;
     const vertex = verticesById[vertexId];
@@ -98,13 +109,20 @@ export function _enrichStateWithStatsAggregation(
     }
   });
 
-  return stateDocument.logstash_state.pipeline;
+  return stateDocument.logstash_state?.pipeline;
 }
 
-export async function getPipeline(req, config, lsIndexPattern, clusterUuid, pipelineId, version) {
+export async function getPipeline(
+  req: LegacyRequest,
+  config: { get: (key: string) => string | undefined },
+  lsIndexPattern: string,
+  clusterUuid: string,
+  pipelineId: string,
+  version: { firstSeen: string; lastSeen: string; hash: string }
+) {
   checkParam(lsIndexPattern, 'lsIndexPattern in getPipeline');
 
-  const options = {
+  const options: any = {
     clusterUuid,
     pipelineId,
     version,
diff --git a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.js b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.ts
similarity index 75%
rename from x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.js
rename to x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.ts
index dae8d52e6c57b..96419ceb4cc70 100644
--- a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.js
+++ b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_state_document.ts
@@ -4,16 +4,22 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+// @ts-ignore
 import { createQuery } from '../create_query';
+// @ts-ignore
 import { LogstashMetric } from '../metrics';
-import { get } from 'lodash';
+import { LegacyRequest, ElasticsearchResponse } from '../../types';
 
 export async function getPipelineStateDocument(
-  req,
-  logstashIndexPattern,
-  { clusterUuid, pipelineId, version }
+  req: LegacyRequest,
+  logstashIndexPattern: string,
+  {
+    clusterUuid,
+    pipelineId,
+    version,
+  }: { clusterUuid: string; pipelineId: string; version: { hash: string } }
 ) {
-  const { callWithRequest } = req.server.plugins.elasticsearch.getCluster('monitoring');
+  const { callWithRequest } = req.server.plugins?.elasticsearch.getCluster('monitoring');
   const filters = [
     { term: { 'logstash_state.pipeline.id': pipelineId } },
     { term: { 'logstash_state.pipeline.hash': version.hash } },
@@ -43,8 +49,8 @@ export async function getPipelineStateDocument(
     },
   };
 
-  const resp = await callWithRequest(req, 'search', params);
+  const resp = (await callWithRequest(req, 'search', params)) as ElasticsearchResponse;
 
   // Return null if doc not found
-  return get(resp, 'hits.hits[0]._source', null);
+  return resp.hits?.hits[0]?._source ?? null;
 }
diff --git a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.js b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.ts
similarity index 73%
rename from x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.js
rename to x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.ts
index cdbe26d993f75..b275e4c7bc207 100644
--- a/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.js
+++ b/x-pack/plugins/monitoring/server/lib/logstash/get_pipeline_vertex.ts
@@ -6,16 +6,24 @@
 
 import boom from '@hapi/boom';
 import { get } from 'lodash';
+// @ts-ignore
 import { checkParam } from '../error_missing_required';
 import { getPipelineStateDocument } from './get_pipeline_state_document';
+// @ts-ignore
 import { getPipelineVertexStatsAggregation } from './get_pipeline_vertex_stats_aggregation';
+// @ts-ignore
 import { calculateTimeseriesInterval } from '../calculate_timeseries_interval';
+import { LegacyRequest } from '../../types';
+import {
+  ElasticsearchSource,
+  ElasticsearchSourceLogstashPipelineVertex,
+} from '../../../common/types/es';
 
 export function _vertexStats(
-  vertex,
-  vertexStatsBucket,
-  totalProcessorsDurationInMillis,
-  timeseriesIntervalInSeconds
+  vertex: ElasticsearchSourceLogstashPipelineVertex,
+  vertexStatsBucket: any,
+  totalProcessorsDurationInMillis: number,
+  timeseriesIntervalInSeconds: number
 ) {
   const isInput = vertex.plugin_type === 'input';
   const isProcessor = vertex.plugin_type === 'filter' || vertex.plugin_type === 'output';
@@ -27,9 +35,12 @@ export function _vertexStats(
 
   const durationInMillis = vertexStatsBucket.duration_in_millis_total.value;
 
-  const inputStats = {};
-  const processorStats = {};
-  const eventsProcessedStats = {
+  const inputStats: any = {};
+  const processorStats: any = {};
+  const eventsProcessedStats: {
+    events_out_per_millisecond: number;
+    events_in_per_millisecond?: number;
+  } = {
     events_out_per_millisecond: eventsOutTotal / timeseriesIntervalInMillis,
   };
 
@@ -72,21 +83,23 @@ export function _vertexStats(
  * @param {Integer} timeseriesIntervalInSeconds The size of each timeseries bucket, in seconds
  */
 export function _enrichVertexStateWithStatsAggregation(
-  stateDocument,
-  vertexStatsAggregation,
-  vertexId,
-  timeseriesIntervalInSeconds
+  stateDocument: ElasticsearchSource,
+  vertexStatsAggregation: any,
+  vertexId: string,
+  timeseriesIntervalInSeconds: number
 ) {
   const logstashState = stateDocument.logstash_state;
-  const vertices = logstashState.pipeline.representation.graph.vertices;
+  const vertices = logstashState?.pipeline?.representation?.graph?.vertices;
 
   // First, filter out the vertex we care about
-  const vertex = vertices.find((v) => v.id === vertexId);
-  vertex.stats = {};
+  const vertex = vertices?.find((v) => v.id === vertexId);
+  if (vertex) {
+    vertex.stats = {};
+  }
 
   // Next, iterate over timeseries metrics and attach them to vertex
   const timeSeriesBuckets = vertexStatsAggregation.aggregations.timeseries.buckets;
-  timeSeriesBuckets.forEach((timeSeriesBucket) => {
+  timeSeriesBuckets.forEach((timeSeriesBucket: any) => {
     // each bucket calculates stats for total pipeline CPU time for the associated timeseries
     const totalDurationStats = timeSeriesBucket.pipelines.scoped.total_processor_duration_stats;
     const totalProcessorsDurationInMillis = totalDurationStats.max - totalDurationStats.min;
@@ -94,31 +107,35 @@ export function _enrichVertexStateWithStatsAggregation(
     const timestamp = timeSeriesBucket.key;
 
     const vertexStatsBucket = timeSeriesBucket.pipelines.scoped.vertices.vertex_id;
-    const vertexStats = _vertexStats(
-      vertex,
-      vertexStatsBucket,
-      totalProcessorsDurationInMillis,
-      timeseriesIntervalInSeconds
-    );
-    Object.keys(vertexStats).forEach((stat) => {
-      if (!vertex.stats.hasOwnProperty(stat)) {
-        vertex.stats[stat] = { data: [] };
-      }
-      vertex.stats[stat].data.push([timestamp, vertexStats[stat]]);
-    });
+    if (vertex) {
+      const vertexStats = _vertexStats(
+        vertex,
+        vertexStatsBucket,
+        totalProcessorsDurationInMillis,
+        timeseriesIntervalInSeconds
+      );
+      Object.keys(vertexStats).forEach((stat) => {
+        if (vertex?.stats) {
+          if (!vertex.stats.hasOwnProperty(stat)) {
+            vertex.stats[stat] = { data: [] };
+          }
+          vertex.stats[stat].data?.push([timestamp, vertexStats[stat]]);
+        }
+      });
+    }
   });
 
   return vertex;
 }
 
 export async function getPipelineVertex(
-  req,
-  config,
-  lsIndexPattern,
-  clusterUuid,
-  pipelineId,
-  version,
-  vertexId
+  req: LegacyRequest,
+  config: { get: (key: string) => string | undefined },
+  lsIndexPattern: string,
+  clusterUuid: string,
+  pipelineId: string,
+  version: { hash: string; firstSeen: string; lastSeen: string },
+  vertexId: string
 ) {
   checkParam(lsIndexPattern, 'lsIndexPattern in getPipeline');