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"Hi, I'm attempting to create my own work shift selector using this plugin, and I'm wondering if there's any way to modify the dashboard variables 'timeFrom' and 'timeTo'? <a href="https://localhost:3000/d/uid/dashboard?from=1696075200000&to=1696104000000">
<button id="btn"> change interval </button>
</a> |
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Answered by
frogg1ven
Feb 8, 2024
Replies: 1 comment 7 replies
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You can use htmlGraphics.locationService.push which is a wrapper around history.pushState. htmlGraphics.locationService.push("https://localhost:3000/d/uid/dashboard?from=1696075200000&to=1696104000000")Example with a button element const btn = htmlNode.querySelector("button");
btn.addEventListener("click", () => {
htmlGraphics.locationService.push("https://localhost:3000/d/uid/dashboard?from=1696075200000&to=1696104000000")
}); |
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7 replies
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This solution worked, however instead of providing the entire URL as an argument, only the endpoint needs to be specified in the following manner: htmlGraphics.locationService.push("dashboard?from=1696075200000&to=1696104000000")Thank you for the quick response. |
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Answer selected by
frogg1ven
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I have one more question: Can I somehow trigger the 'Run query' or 'Refresh dashboard' action, or force the panel to retrieve data from the MS SQL database on button click? |
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You can reload the dashboard with To update a single panel (or the ones with the specified grafana variable), you can use this example: https://gapit-htmlgraphics-panel.gapit.io/docs/examples/update-grafana-variable-example/. Another approach is to retrieve the data manually with fetch commands, but it's a bit complicated. This example shows you how to retrieve data manually: https://gapit-htmlgraphics-panel.gapit.io/docs/examples/export-to-csv/export-to-csv-influx2/.
JSON Model
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"fiscalYearStartMonth": 0,
"graphTooltip": 0,
"id": 2,
"links": [],
"liveNow": false,
"panels": [
{
"datasource": {
"type": "grafana",
"uid": "grafana"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unitScale": true
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 0
},
"id": 3,
"options": {
"SVGBaseFix": true,
"add100Percentage": true,
"calcsMutation": "standard",
"centerAlignContent": true,
"codeData": "{\n \"testVariable\": \"${testVariable}\"\n}",
"css": "",
"dynamicData": false,
"dynamicFieldDisplayValues": false,
"dynamicHtmlGraphics": false,
"dynamicProps": false,
"html": "<button></button>\n",
"onInit": "// For Grafana v8.3.0+ the variable needs to be wrapped in ${}\nconst { testVariable } = customProperties;\nconst testVariableName = testVariable.replace(/[${}]/g, \"\");\nconst buttonElt = htmlNode.querySelector('button');\n\n/*\n Update a grafana variable\n\n More information in the grafana docs\n https://grafana.com/docs/grafana/v9.1/developers/plugins/add-support-for-variables/\n*/\nfunction updateGrafanaVariable(variableName, value) {\n getLocationSrv().update({\n query: {\n [`var-${variableName}`]: value,\n },\n partial: true, // partial: true makes the update only affect the query parameters listed in query, and leaves the other query parameters unchanged.\n replace: true, // replace: true tells Grafana to update the current URL state, rather than creating a new history entry.\n });\n}\n\nfunction getGrafanaVariableValue(variable) {\n return getTemplateSrv().replace(variable);\n}\n\nfunction updateButtonText() {\n buttonElt.textContent = `${testVariableName}'s current value is: ${getGrafanaVariableValue(testVariable)}`;\n}\n\nbuttonElt.onclick = function () {\n updateGrafanaVariable(testVariableName, getGrafanaVariableValue(testVariable) == 'b' ? 'a' : 'b');\n};\n\n/*\n When the variable changes panelupdate will trigger.\n The panelupdate is used to update the button text so the text is the same as the variable.\n*/\nhtmlNode.addEventListener('panelupdate', () => {\n updateButtonText();\n});\n",
"onInitOnResize": false,
"onRender": "console.log(data.series[0].fields[0].values)",
"overflow": "visible",
"panelupdateOnMount": true,
"reduceOptions": {
"calcs": [
"lastNotNull",
"last",
"first",
"firstNotNull",
"min",
"max",
"mean",
"sum",
"count",
"range",
"delta",
"step",
"diff",
"logmin",
"allIsZero",
"allIsNull",
"diffperc"
]
},
"renderOnMount": true,
"rootCSS": "",
"useGrafanaScrollbar": true
},
"targets": [
{
"datasource": {
"type": "datasource",
"uid": "grafana"
},
"queryType": "randomWalk",
"refId": "A"
}
],
"title": "Panel Title",
"type": "gapit-htmlgraphics-panel"
},
{
"datasource": {
"type": "datasource",
"uid": "grafana"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unitScale": true
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 0
},
"id": 4,
"options": {
"SVGBaseFix": true,
"add100Percentage": true,
"calcsMutation": "standard",
"centerAlignContent": true,
"codeData": "{\n \"text\": \"Random text\"\n}",
"css": "* {\n font-family: Open Sans;\n}\n\n.box {\n border: solid #555 2px;\n border-radius: 10px;\n padding: 10px 20px;\n}\n",
"dynamicData": false,
"dynamicFieldDisplayValues": false,
"dynamicHtmlGraphics": false,
"dynamicProps": false,
"html": "<div style=\"text-align: center;\">\n <div class=\"box\" id=\"htmlgraphics-text\"></div>\n <br />\n <div class=\"box\" id=\"htmlgraphics-value\"></div>\n</div>\n",
"onInit": "// Sets the text from customProperties\nconst htmlgraphicsText = htmlNode.getElementById('htmlgraphics-text');\n\nif (htmlgraphicsText) {\n htmlgraphicsText.textContent = customProperties.text;\n\n // Change the text color based on the theme\n if (theme.isDark) {\n htmlgraphicsText.style.color = 'green';\n } else {\n htmlgraphicsText.style.color = 'red';\n }\n}\n",
"onInitOnResize": false,
"onRender": "// Sets the value from the first series on every refresh\nconst htmlgraphicsValue = htmlNode.getElementById('htmlgraphics-value');\n\nif (htmlgraphicsValue) {\n const valueField = data.series[0]?.fields[1];\n if (valueField) {\n const length = valueField.values.length;\n htmlgraphicsValue.textContent = valueField.values.get(length - 1);\n } else {\n htmlgraphicsValue.textContent = \"No data\"\n }\n}\n",
"overflow": "visible",
"panelupdateOnMount": true,
"reduceOptions": {
"calcs": [
"lastNotNull",
"last",
"firstNotNull",
"first",
"min",
"max",
"mean",
"sum",
"count",
"range",
"delta",
"step",
"diff",
"logmin",
"allIsZero",
"allIsNull",
"diffperc"
]
},
"renderOnMount": true,
"rootCSS": "",
"useGrafanaScrollbar": true
},
"title": "Contains the test variable: ${testVariable}",
"type": "gapit-htmlgraphics-panel"
},
{
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 0,
"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unitScale": true
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 8
},
"id": 2,
"options": {
"legend": {
"calcs": [],
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "single",
"sort": "none"
}
},
"title": "Panel Title",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-testdata-datasource",
"uid": "d0deb289-5da5-48eb-bce0-00e5decab902"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unitScale": true
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 8
},
"id": 1,
"options": {
"SVGBaseFix": true,
"add100Percentage": true,
"calcsMutation": "standard",
"centerAlignContent": true,
"codeData": "{\n \"text\": \"Random text\"\n}",
"css": "* {\n font-family: Open Sans;\n}\n\n.box {\n border: solid #555 2px;\n border-radius: 10px;\n padding: 10px 20px;\n}\n",
"dynamicData": false,
"dynamicFieldDisplayValues": false,
"dynamicHtmlGraphics": false,
"dynamicProps": false,
"html": "<div style=\"text-align: center;\">\n <button>Refresh</button>\n <div class=\"box\" id=\"htmlgraphics-text\"></div>\n <br />\n <div class=\"box\" id=\"htmlgraphics-value\"></div>\n</div>\n",
"onInit": "// Sets the text from customProperties\nconst htmlgraphicsText = htmlNode.getElementById('htmlgraphics-text');\n\nif (htmlgraphicsText) {\n htmlgraphicsText.textContent = customProperties.text;\n\n // Change the text color based on the theme\n if (theme.isDark) {\n htmlgraphicsText.style.color = 'green';\n } else {\n htmlgraphicsText.style.color = 'red';\n }\n}\n\nconst btn = htmlNode.querySelector(\"button\");\n\nbtn.addEventListener(\"click\", () => {\n htmlGraphics.locationService.reload();\n});",
"onInitOnResize": false,
"onRender": "// Sets the value from the first series on every refresh\nconst htmlgraphicsValue = htmlNode.getElementById('htmlgraphics-value');\n\nif (htmlgraphicsValue) {\n const valueField = data.series[0]?.fields[1];\n if (valueField) {\n const length = valueField.values.length;\n htmlgraphicsValue.textContent = valueField.values.get(length - 1);\n } else {\n htmlgraphicsValue.textContent = \"No data\"\n }\n}\n",
"overflow": "visible",
"panelupdateOnMount": true,
"reduceOptions": {
"calcs": [
"lastNotNull",
"last",
"firstNotNull",
"first",
"min",
"max",
"mean",
"sum",
"count",
"range",
"delta",
"step",
"diff",
"logmin",
"allIsZero",
"allIsNull",
"diffperc"
]
},
"renderOnMount": true,
"rootCSS": "",
"useGrafanaScrollbar": true
},
"title": "Panel Title",
"type": "gapit-htmlgraphics-panel"
}
],
"refresh": "",
"schemaVersion": 39,
"tags": [],
"templating": {
"list": [
{
"current": {
"selected": false,
"text": "b",
"value": "b"
},
"hide": 0,
"includeAll": false,
"multi": false,
"name": "testVariable",
"options": [
{
"selected": false,
"text": "a",
"value": "a"
},
{
"selected": true,
"text": "b",
"value": "b"
}
],
"query": "a,b",
"skipUrlSync": false,
"type": "custom"
}
]
},
"time": {
"from": "now-6h",
"to": "now"
},
"timepicker": {},
"timezone": "",
"title": "Refresh panel",
"uid": "e3189e12-f321-4cfe-a291-0ffd2e959e4e",
"version": 12,
"weekStart": ""
} |
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|
I am trying to fetch data from a Microsoft SQL Server database. The query is correct as I have tested it, but in Grafana, the POST request returns an empty JSON object with status: 200 so there is db connection. I am not sure what I am doing wrong. Could you advise me on this? function main() {
const query = `SELECT * FROM test;`
const refId = "A";
const datasource = {
"type": "mssql",
"uid": "a5daead1-928d-4e7f-9d82-b97174160e56"
};
const { from, to } = data.timeRange;
const body = {
queries: [
{
datasource,
query,
refId,
intervalMs: 0,
maxDataPoints: 1e9, // 1E9 = 1_000_000_000 (Max allowed 1E20)
},
],
from: String(from.valueOf()),
to: String(to.valueOf()),
};
fetch("/api/ds/query", {
headers: {
"cache-control": "no-cache",
"content-type": "application/json",
},
body: JSON.stringify(body),
method: "POST",
})
.then((res) => console.log(res))
.catch(console.error);
}This is my dashboard: {
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"fiscalYearStartMonth": 0,
"graphTooltip": 0,
"links": [],
"liveNow": false,
"panels": [
{
"datasource": {
"type": "mssql",
"uid": "a5daead1-928d-4e7f-9d82-b97174160e56"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 0
},
"id": 1,
"links": [],
"options": {
"SVGBaseFix": true,
"add100Percentage": true,
"calcsMutation": "standard",
"centerAlignContent": true,
"codeData": "{\n \"text\": \"Random text\"\n}",
"css": "",
"dynamicData": false,
"dynamicFieldDisplayValues": false,
"dynamicHtmlGraphics": false,
"dynamicProps": false,
"html": "\n\n<div style=\"text-align: center;\">\n <button id=\"btn2\"> button </button>\n</div>\n\n",
"onInit": "\nfunction main() {\n const query = `SELECT * FROM test;`\n const refId = \"A\";\n const datasource = {\n \"type\": \"mssql\",\n \"uid\": \"a5daead1-928d-4e7f-9d82-b97174160e56\"\n };\n const { from, to } = data.timeRange;\n\n const body = {\n queries: [\n {\n datasource,\n query,\n refId,\n intervalMs: 0,\n maxDataPoints: 1e9, // 1E9 = 1_000_000_000 (Max allowed 1E20)\n },\n ],\n from: String(from.valueOf()),\n to: String(to.valueOf()),\n };\n\n fetch(\"/api/ds/query\", {\n headers: {\n \"cache-control\": \"no-cache\",\n \"content-type\": \"application/json\",\n },\n body: JSON.stringify(body),\n method: \"POST\",\n })\n .then((res) => console.log(res))\n .catch(console.error);\n}\n\nvar btn2 = htmlNode.getElementById(\"btn2\")\nbtn2.addEventListener(\"click\", () => {\n main();\n});\n",
"onInitOnResize": false,
"onRender": "",
"overflow": "visible",
"panelupdateOnMount": true,
"reduceOptions": {
"calcs": [
"lastNotNull",
"last",
"firstNotNull",
"first",
"min",
"max",
"mean",
"sum",
"count",
"range",
"delta",
"step",
"diff",
"logmin",
"allIsZero",
"allIsNull",
"diffperc"
]
},
"renderOnMount": true,
"rootCSS": "",
"useGrafanaScrollbar": true
},
"targets": [
{
"dataset": "SQLFromPLC",
"datasource": {
"type": "mssql",
"uid": "a5daead1-928d-4e7f-9d82-b97174160e56"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "SELECT * FROM SQLFromPLC.dbo.test ",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [
{
"name": "*",
"type": "functionParameter"
}
],
"type": "function"
},
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
},
"table": "dbo.test"
}
],
"type": "gapit-htmlgraphics-panel"
}
],
"refresh": "",
"schemaVersion": 38,
"tags": [],
"templating": {
"list": []
},
"time": {
"from": "now-6h",
"to": "now"
},
"timepicker": {},
"timezone": "",
"title": "New dashboard",
"version": 0,
"weekStart": ""
} |
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Depending on the data source, the query and how the fetch command is made differs.
Take special note of how the URL and body are configured.
|
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This solution worked, however instead of providing the entire URL as an argument, only the endpoint needs to be specified in the following manner:
Thank you for the quick response.