diff --git a/src/lib/graphQueryGenerator.ts b/src/lib/server/graphQueryGenerator.ts
similarity index 91%
rename from src/lib/graphQueryGenerator.ts
rename to src/lib/server/graphQueryGenerator.ts
index f3cc22e..427d6d9 100644
--- a/src/lib/graphQueryGenerator.ts
+++ b/src/lib/server/graphQueryGenerator.ts
@@ -83,8 +83,8 @@ function buildQuery(field: String, from: Date, to: Date, interval: String) {
           {
             range: {
               '@timestamp': {
-                gte: toDateString,
-                lte: fromDateString,
+                gte: fromDateString,
+                lte: toDateString,
                 format: 'strict_date_optional_time'
               }
             }
@@ -138,7 +138,7 @@ function calculateInterval(from, to, interval, size) {
   if (interval !== 'auto') {
     return interval;
   }
-  const dateMathInterval = roundInterval((from - to) / size);
+  const dateMathInterval = roundInterval((to - from) / size);
   // const dateMathIntervalMs = toMS(dateMathInterval);
   // const minMs = toMS(min);
   // if (dateMathIntervalMs !== undefined && minMs !== undefined && dateMathIntervalMs < minMs) {
@@ -148,6 +148,7 @@ function calculateInterval(from, to, interval, size) {
 }
 
 function parseTempResponse(data: IESTelemetry): IChartFrame[] {
+  console.log('got temp response:', data);
   return data?.aggregations?.data?.buckets.map((bucket) => {
     return {
       value: bucket?.maxValue?.value,
@@ -161,12 +162,7 @@ function parseLatestResponse(data: IESTelemetry) {
   return data?.hits?.hits[0]?._source;
 }
 
-export function fetchTemperature(
-  from: Date,
-  to: Date,
-  size: number = 50,
-  fetch: Function
-): Promise<IChartFrame[]> {
+export function fetchTemperature(from: Date, to: Date, size: number = 50): Promise<IChartFrame[]> {
   const fromMS = from.getTime();
   const toMS = to.getTime();
   const interval = calculateInterval(fromMS, toMS, 'auto', size);
@@ -181,18 +177,14 @@ export function fetchTemperature(
     },
     body: JSON.stringify(esSearchQuery)
   };
+  console.log('temp options:', options);
 
   return fetch(TELEMETRY_ENDPOINT, options)
     .then((resp) => resp.json())
     .then(parseTempResponse);
 }
 
-export function fetchHumidity(
-  from: Date,
-  to: Date,
-  size: number = 50,
-  fetch: Function
-): Promise<IChartFrame[]> {
+export function fetchHumidity(from: Date, to: Date, size: number = 50): Promise<IChartFrame[]> {
   const fromMS = from.getTime();
   const toMS = to.getTime();
   const interval = calculateInterval(fromMS, toMS, 'auto', size);
@@ -213,12 +205,7 @@ export function fetchHumidity(
     .then(parseTempResponse);
 }
 
-export function fetchPressure(
-  from: Date,
-  to: Date,
-  size: number = 50,
-  fetch: Function
-): Promise<IChartFrame[]> {
+export function fetchPressure(from: Date, to: Date, size: number = 50): Promise<IChartFrame[]> {
   const fromMS = from.getTime();
   const toMS = to.getTime();
   const interval = calculateInterval(fromMS, toMS, 'auto', size);
diff --git a/src/routes/+page.server.ts b/src/routes/+page.server.ts
index f96bc99..6cb6adf 100644
--- a/src/routes/+page.server.ts
+++ b/src/routes/+page.server.ts
@@ -1,7 +1,5 @@
-import { getLatestInsideReadings, getLatestOutsideReadings } from '$lib/graphQueryGenerator';
 import type { PageServerLoad } from './$types';
 
-let DEFAULT_MINUTES = 14400;
 const host = 'http://brewpi.schleppe:5000';
 const sensorsUrl = `${host}/api/sensors`;
 const relaysUrl = `${host}/api/relays`;
@@ -24,8 +22,6 @@ async function getRelays() {
 
 export const load: PageServerLoad = async () => {
   const [sensors, relays] = await Promise.all([getSensors(), getRelays()]);
-  console.log('got sensors and relays');
-  console.log(sensors, relays);
 
   const inside = sensors.find((sensor) => sensor.location === 'inside');
   const outside = sensors.find((sensor) => sensor.location === 'outside');
diff --git a/src/routes/api/graph/[unit]/+server.ts b/src/routes/api/graph/[unit]/+server.ts
new file mode 100644
index 0000000..346142a
--- /dev/null
+++ b/src/routes/api/graph/[unit]/+server.ts
@@ -0,0 +1,39 @@
+import { json, RequestEvent } from '@sveltejs/kit';
+import {
+  fetchTemperature,
+  fetchHumidity,
+  fetchPressure
+} from '../../../../lib/server/graphQueryGenerator';
+import type { RequestHandler } from './$types';
+
+const UNITS = ['temperature', 'humidity', 'pressure'];
+const UNITS_STRING = UNITS.join(', ');
+
+export const POST = (async (event: RequestEvent) => {
+  const { request, params } = event;
+
+  const { unit } = params;
+  if (!unit || UNITS.indexOf(unit) == -1) {
+    return json({
+      success: false,
+      message: `Unit ${unit} not found. Choose from: ${UNITS_STRING}`
+    });
+  }
+
+  const bodyData = await request.json();
+  let data;
+  let { from, to } = bodyData;
+  const { size } = bodyData;
+  from = new Date(from);
+  to = new Date(to);
+
+  if (unit === 'temperature') {
+    data = await fetchTemperature(from, to, size);
+  } else if (unit === 'humidity') {
+    data = await fetchHumidity(from, to, size);
+  } else if (unit === 'pressure') {
+    data = await fetchPressure(from, to, size);
+  }
+
+  return json({ success: true, data });
+}) satisfies RequestHandler;
diff --git a/src/routes/graphs/+page.server.ts b/src/routes/graphs/+page.server.ts
index 2a7815f..9856fed 100644
--- a/src/routes/graphs/+page.server.ts
+++ b/src/routes/graphs/+page.server.ts
@@ -1,13 +1,21 @@
-import { fetchTemperature, fetchHumidity, fetchPressure } from '$lib/graphQueryGenerator';
+import {
+  fetchTemperature,
+  fetchHumidity,
+  fetchPressure
+} from '../../lib/server/graphQueryGenerator';
 import type { PageServerLoad } from './$types';
-import type IChartFrame from '$lib/interfaces/IChartFrame';
+import type IChartFrame from '../../lib/interfaces/IChartFrame';
 
-let DEFAULT_MINUTES = 10080;
+const DEFAULT_MINUTES = 10080;
 
 export const load: PageServerLoad = async ({ fetch }) => {
-  const temperatureData: IChartFrame[] = await getTemp(DEFAULT_MINUTES, fetch);
-  const humidityData: IChartFrame[] = await getHumidity(DEFAULT_MINUTES, fetch);
-  const pressureData: IChartFrame[] = await getPressure(DEFAULT_MINUTES, fetch);
+  const to = new Date();
+  const from = new Date(to.getTime() - DEFAULT_MINUTES * 60 * 1000);
+  const size = 40;
+
+  const temperatureData: IChartFrame[] = await fetchTemperature(from, to, size);
+  const humidityData: IChartFrame[] = await fetchHumidity(from, to, size);
+  const pressureData: IChartFrame[] = await fetchPressure(from, to, size);
 
   return {
     temperatureData,
@@ -16,23 +24,3 @@ export const load: PageServerLoad = async ({ fetch }) => {
     DEFAULT_MINUTES
   };
 };
-
-function getSensor(func: Function, minutes: number, fetch: Function) {
-  const from: Date = new Date();
-  const to = new Date(from.getTime() - minutes * 60 * 1000);
-  const size = 40;
-
-  return func(from, to, size, fetch);
-}
-
-function getTemp(minutes: number, fetch: Function): IChartFrame[] {
-  return getSensor(fetchTemperature, minutes, fetch);
-}
-
-function getHumidity(minutes: number, fetch: Function): IChartFrame[] {
-  return getSensor(fetchHumidity, minutes, fetch);
-}
-
-function getPressure(minutes: number, fetch: Function): IChartFrame[] {
-  return getSensor(fetchPressure, minutes, fetch);
-}
diff --git a/src/routes/graphs/+page.svelte b/src/routes/graphs/+page.svelte
index 5433da1..6d1aaea 100644
--- a/src/routes/graphs/+page.svelte
+++ b/src/routes/graphs/+page.svelte
@@ -1,55 +1,48 @@
 <script lang="ts">
   import { onMount } from 'svelte';
-  import { fetchTemperature, fetchHumidity, fetchPressure } from '$lib/graphQueryGenerator';
-  import Graph from '$lib/components/Graph.svelte';
-  import type IChartFrame from '$lib/interfaces/IChartFrame';
+  import Graph from '../../lib/components/Graph.svelte';
+  import type IChartFrame from '../../lib/interfaces/IChartFrame';
   import type { PageData } from './$types';
 
-  export let data: PageData
+  export let data: PageData;
 
   let temperatureData: IChartFrame[] = data?.temperatureData;
-  let humidityData: IChartFrame[] = data?.temperatureData;
-  let pressureData: IChartFrame[] = data?.temperatureData;
-  let DEFAULT_MINUTES: number = data?.DEFAULT_MINUTES
+  let humidityData: IChartFrame[] = data?.humidityData;
+  let pressureData: IChartFrame[] = data?.pressureData;
+  let DEFAULT_MINUTES: number = data?.DEFAULT_MINUTES;
   let minutes: number = DEFAULT_MINUTES;
 
-  const buttonMinutes = [{
-      value: 15,
-      name: 'Last 15 minutes'
-    }, {
-      value: 60,
-      name: 'Last hour'
-    }, {
-      value: 1440,
-      name: 'Last day'
-    }, {
-      value: 10080,
-      name: 'Last week'
-    }, {
-      value: 43200,
-      name: 'Last month'
-    }, {
-      value: 129600,
-      name: 'Last 3 months'
-    }, {
-      value: 259200,
-      name: 'Last 6 months'
-    }, {
-      value: 518400,
-      name: 'Last year',
-    }]
+  async function fetchData(unit: string, from: Date, to: Date, size: number) {
+    const options = {
+      method: 'POST',
+      body: JSON.stringify({ from, to, size })
+    };
+
+    return fetch(`/api/graph/${unit}`, options).then((resp) => resp.json());
+  }
+
+  const buttonMinutes = [
+    { value: 15, name: 'Last 15 minutes' },
+    { value: 60, name: 'Last hour' },
+    { value: 360, name: 'Last 6 hours' },
+    { value: 1440, name: 'Last day' },
+    { value: 10080, name: 'Last week' },
+    { value: 43200, name: 'Last month' },
+    { value: 129600, name: 'Last 3 months' },
+    { value: 259200, name: 'Last 6 months' },
+    { value: 518400, name: 'Last year' }
+  ];
 
   function reload(mins: number) {
-    minutes = mins
-    const from: Date = new Date();
-    const to = new Date(from.getTime() - minutes * 60 * 1000);
+    minutes = mins;
+    const to: Date = new Date();
+    const from = new Date(to.getTime() - minutes * 60 * 1000);
     const size = 40;
 
-    fetchTemperature(from, to, size, window.fetch).then((resp) => (temperatureData = resp));
-    fetchHumidity(from, to, size, window.fetch).then((resp) => (humidityData = resp));
-    fetchPressure(from, to, size, window.fetch).then((resp) => (pressureData = resp));
+    fetchData('temperature', from, to, size).then((resp) => (temperatureData = resp?.data));
+    fetchData('humidity', from, to, size).then((resp) => (humidityData = resp?.data));
+    fetchData('pressure', from, to, size).then((resp) => (pressureData = resp?.data));
   }
-</script>
 
 <!-- <h1>Server: {emoji.emoji}</h1> -->
 
@@ -57,24 +50,27 @@
 
 <div class="button-wrapper">
   {#each buttonMinutes as button}
-    <button on:click={() => reload(button.value)} class="{button.value === minutes ? 'selected' : ''}">{ button.name }</button>
+    <button
+      on:click="{() => reload(button.value)}"
+      class="{button.value === minutes ? 'selected' : ''}">{button.name}</button
+    >
   {/each}
 </div>
 
 <section class="graphs">
   {#if temperatureData}
-    <div class="graphWrapper">
-      <Graph dataFrames={temperatureData} name="Temperature" />
+    <div class="card">
+      <Graph dataFrames="{temperatureData}" name="Temperature" />
     </div>
   {/if}
   {#if humidityData}
-    <div class="graphWrapper">
-      <Graph dataFrames={humidityData} name="Humidity" beginAtZero={false} />
+    <div class="card">
+      <Graph dataFrames="{humidityData}" name="Humidity" />
     </div>
   {/if}
   {#if pressureData}
-    <div class="graphWrapper">
-      <Graph dataFrames={pressureData} name="Pressure" beginAtZero={false} />
+    <div class="card">
+      <Graph dataFrames="{pressureData}" name="Pressure" />
     </div>
   {/if}
 </section>
@@ -89,17 +85,21 @@
     width: 100%;
 
     @include mobile {
-      grid-template-columns: 1fr;
+      display: block;
+      > *:not(*:first-child) {
+        margin-top: 1rem;
+      }
     }
 
-    .graphWrapper {
-      max-width: 100vw;
+    .card {
+      padding: 1rem;
     }
   }
 
   .button-wrapper {
     display: flex;
-    width: min-content;
+    margin: 1rem 0;
+    overflow-y: scroll;
   }
 
   button {