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chartjs-plugin-datasource-prometheus

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Chart.js plugin for Prometheus datasource. Like Grafana, but standalone.

github.com/samber/chartjs-plugin-datasource-prometheus

samber/chartjs-plugin-datasource-prometheus

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t=this._listeners.indexOf(e);-1!==t&&this._listeners.splice(t,1)}toAbortSignal(){const e=new AbortController,t=t=>{e.abort(t)};return this.subscribe(t),e.signal.unsubscribe=()=>this.unsubscribe(t),e.signal}static source(){let t;return{token:new e((function(e){t=e})),cancel:t}}},at.isCancel=Re,at.VERSION=et,at.toFormData=X,at.AxiosError=z,at.Cancel=at.CanceledError,at.all=function(e){return Promise.all(e)},at.spread=function(e){return function(t){return e.apply(null,t)}},at.isAxiosError=function(e){return G.isObject(e)&&!0===e.isAxiosError},at.mergeConfig=je,at.AxiosHeaders=we,at.formToJSON=e=>fe(G.isHTMLForm(e)?new FormData(e):e),at.getAdapter=Xe,at.HttpStatusCode=it,at.default=at,e.ResponseType=void 0,(lt=e.ResponseType||(e.ResponseType={})).MATRIX="matrix",lt.VECTOR="vector",lt.SCALAR="scalar",lt.STRING="string";class ct{constructor(e,t){if(e&&"string"!=typeof e)throw new Error("Wrong name format. Expected string.");if(t&&"object"!=typeof t)throw new Error("Wrong labels format. Expected object.");this.name=e,this.labels=t}static fromJSON(e){const t=e.__name__,r=Object.assign({},e);return delete r.__name__,new ct(t,r)}toString(){return(this.name?this.name:"")+"{"+Object.keys(this.labels).map((e=>e+'="'+this.labels[e]+'"')).join(", ")+"}"}}class ut{constructor(e,t){if("object"!=typeof e||"Date"!=e.constructor.name)throw new Error("Wrong time format. Expected Date.");if("number"!=typeof t)throw new Error("Wrong value format. Expected float.");this.time=e,this.value=t}static fromJSON(e){const t=new Date(1e3*e[0]),r=parseFloat(e[1]);return new ut(t,r)}toString(){return this.time+": "+this.value}}class dt{constructor(e,t){this.metric=e,this.values=t}static fromJSON(e){const t=e.metric?ct.fromJSON(e.metric):null,r=e.values.map(ut.fromJSON);return new dt(t,r)}}class ft{constructor(e,t){this.metric=e,this.value=t}static fromJSON(e){const t=e.metric?ct.fromJSON(e.metric):null,r=ut.fromJSON(e.value);return new ft(t,r)}}class ht{constructor(e,t){this.resultType=e,this.result=t}static fromJSON(t){const r=t.resultType;let n=null;switch(r){case e.ResponseType.MATRIX:n=t.result.map(dt.fromJSON);break;case e.ResponseType.VECTOR:n=t.result.map(ft.fromJSON);break;case e.ResponseType.SCALAR:case e.ResponseType.STRING:n=t.result;break;default:throw new Error(`Unexpected resultType: ${r}`)}return new ht(r,n)}}class pt{constructor(e,t,r,n,o,s,i,a){if(e&&"object"!=typeof e)throw new Error(`Unexpected format for discoveredLabels. Got ${typeof e} instead of object`);if(t&&"object"!=typeof t)throw new Error(`Unexpected format for labels. Got ${typeof t} instead of object`);if(r&&"string"!=typeof r)throw new Error(`Unexpected format for scrapePool. Got ${typeof r} instead of string`);if(n&&"string"!=typeof n)throw new Error(`Unexpected format for scrapeUrl. Got ${typeof n} instead of string`);if(o&&"string"!=typeof o)throw new Error(`Unexpected format for lastError. Got ${typeof o} instead of string`);if(s&&("object"!=typeof s||"Date"!=s.constructor.name))throw new Error(`Unexpected format for lastScrape. Got ${typeof s} instead of object`);if(i&&"number"!=typeof i)throw new Error(`Unexpected format for lastScrapeDuration. Got ${typeof i} instead of number`);if(a&&"string"!=typeof a)throw new Error(`Unexpected format for health. 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Got ${typeof o} instead of number`);this.activeAt=e,this.annotations=t,this.labels=r,this.state=n,this.value=o}static fromJSON(e){return new mt(e.activeAt?new Date(e.activeAt):null,e.annotations,e.labels,e.state,e.value?parseFloat(e.value):null)}}class gt{constructor(e,t,r,n,o,s,i,a){this.alerts=e,this.annotations=t,this.duration=r,this.health=n,this.labels=o,this.name=s,this.query=i,this.type=a}static fromJSON(e){return new gt(e.alerts?e.alerts.map(mt.fromJSON):[],e.annotations,e.duration,e.health,e.labels,e.name,e.query,e.type)}}class bt{constructor(e,t,r,n){this.rules=e,this.file=t,this.interval=r,this.name=n}static fromJSON(e){return new bt(e.rules?e.rules.map(gt.fromJSON):[],e.file,e.interval,e.name)}}class yt{constructor(){this.baseURL="/api/v1/",this.headers={},this.auth=null,this.proxy=null,this.withCredentials=!1,this.timeout=1e4,this.preferPost=!1,this.warningHook=null}}e.Alert=mt,e.InstantVector=ft,e.Metric=ct,e.PrometheusConnectionOptions=yt,e.PrometheusDriver=class{constructor(e){if(this.listifyIfNeeded=e=>e instanceof Array?e:[e],this.formatPromQlParams=e=>Object.entries(null!=e?e:{}).reduce(((e,[t,r])=>(null!=r&&(r instanceof Array?r.filter((e=>null!=e)).forEach((r=>e.append(`${t}[]`,r))):e.append(t,r)),e)),new URLSearchParams),!(e=e||new yt).endpoint)throw"Endpoint is required";e.endpoint=e.endpoint.replace(/\/$/,""),e.baseURL=e.baseURL||"/api/v1/",e.withCredentials=e.withCredentials||!1,e.timeout=e.timeout||1e4,this.options=e,this.axiosInstance=at.create(),this.options.requestInterceptor&&this.axiosInstance.interceptors.request.use(this.options.requestInterceptor.onFulfilled,this.options.requestInterceptor.onRejected),this.options.responseInterceptor&&this.axiosInstance.interceptors.response.use(this.options.responseInterceptor.onFulfilled,this.options.responseInterceptor.onRejected)}request(e,t,r,n){var o,s,i,a,l,c;const u=Object.assign({},this.options.headers||{});return this.axiosInstance.request({baseURL:this.options.endpoint+this.options.baseURL,url:t,method:e,params:this.formatPromQlParams(r),data:this.formatPromQlParams(n),headers:u,auth:(null===(o=this.options.auth)||void 0===o?void 0:o.username)&&(null===(s=this.options.auth)||void 0===s?void 0:s.password)?{username:this.options.auth.username,password:this.options.auth.password}:null,proxy:(null===(i=this.options.proxy)||void 0===i?void 0:i.host)&&(null===(a=this.options.proxy)||void 0===a?void 0:a.port)?{host:null===(l=this.options.proxy)||void 0===l?void 0:l.host,port:null===(c=this.options.proxy)||void 0===c?void 0:c.port}:null,withCredentials:this.options.withCredentials,timeout:this.options.timeout}).then((e=>this.handleResponse(e))).catch((e=>this.handleResponse(e,!0)))}handleResponse(e,t=!1){var r,n,o,s,i;const a=!0===(null==e?void 0:e.isAxiosError),l=t||a,c=a?e:void 0,u=a?c.response:l?null==e?void 0:e.response:e;if(!u){const t=null!==(r=null==c?void 0:c.code)&&void 0!==r?r:null==e?void 0:e.code,i=null!==(o=null!==(n=null==c?void 0:c.message)&&void 0!==n?n:null==e?void 0:e.message)&&void 0!==o?o:"unexpected network error";throw{status:"error",errorType:"ECONNABORTED"===t?"timeout_error":(null===(s=null==t?void 0:t.startsWith)||void 0===s?void 0:s.call(t,"ERR_SSL"))?"ssl_error":"network_error",error:i,code:t,original:e}}this.options.warningHook&&Array.isArray(u.warnings)&&u.warnings.length&&this.options.warningHook(u.warnings);const d=u.data;if(!d||null==d.status)throw{status:"error",errorType:"client_error",error:"unexpected client error",data:d};if(l)throw{status:"error",errorType:"http_error",httpStatus:u.status,error:null!==(i=d.error)&&void 0!==i?i:u.statusText,prometheus:d};return d.data}formatTimeToPrometheus(e,t){var r;if(e||(e=t),"number"==typeof e)return e/1e3;if("object"==typeof e&&"Date"==(null===(r=null==e?void 0:e.constructor)||void 0===r?void 0:r.name))return e.getTime()/1e3;throw new Error("Wrong time format. Expected number or Date.")}instantQuery(e,t,r){const n={query:e,time:this.formatTimeToPrometheus(t,new Date),timeout:r};return(this.options.preferPost?this.request("POST","query",null,n):this.request("GET","query",n)).then((e=>ht.fromJSON(e)))}rangeQuery(e,t,r,n,o){const s={query:e,start:this.formatTimeToPrometheus(t),end:this.formatTimeToPrometheus(r),step:n,timeout:o};return(this.options.preferPost?this.request("POST","query_range",null,s):this.request("GET","query_range",s)).then((e=>ht.fromJSON(e)))}series(e,t,r){const n={match:this.listifyIfNeeded(e),start:this.formatTimeToPrometheus(t),end:this.formatTimeToPrometheus(r)};return(this.options.preferPost?this.request("POST","series",null,n):this.request("GET","series",n)).then((e=>e.map(ct.fromJSON)))}labelNames(e,t,r){const n={match:this.listifyIfNeeded(e),start:t?this.formatTimeToPrometheus(t):void 0,end:r?this.formatTimeToPrometheus(r):void 0};return this.options.preferPost?this.request("POST","labels",null,n):this.request("GET","labels",n)}labelValues(e,t,r,n){const o={match:this.listifyIfNeeded(t),start:r?this.formatTimeToPrometheus(r):void 0,end:n?this.formatTimeToPrometheus(n):void 0};return this.request("GET",`label/${e}/values`,o)}targets(e){const t={query:e||"any"};return this.request("GET","targets",t).then((e=>({activeTargets:e.activeTargets?e.activeTargets.map(pt.fromJSON):[],droppedTargets:e.droppedTargets?e.droppedTargets.map(pt.fromJSON):[]})))}targetsMetadata(e,t,r){const n={match_target:e,metric:t,limit:r};return this.request("GET","targets/metadata",n)}metadata(e,t){const r={metric:e,limit:t};return this.request("GET","metadata",r)}rules(){return this.request("GET","rules").then((e=>(e.groups?e.groups:[]).map(bt.fromJSON)))}alerts(){return this.request("GET","alerts").then((e=>(e.alerts?e.alerts:[]).map(mt.fromJSON)))}alertmanagers(){return this.request("GET","alertmanagers")}status(){return this.request("GET","status/config")}statusFlags(){return this.request("GET","status/flags")}statusRuntimeInfo(){return this.request("GET","status/runtimeinfo")}statusBuildinfo(){return this.request("GET","status/buildinfo")}statusTSDB(){return this.request("GET","status/tsdb")}adminSnapshot(e){const t={skip_head:e};return this.request("POST","admin/tsdb/snapshot",t)}adminDeleteSeries(e,t,r){const n={match:this.listifyIfNeeded(e),start:this.formatTimeToPrometheus(t),end:this.formatTimeToPrometheus(r)};return this.request("POST","admin/tsdb/delete_series",n)}adminCleanTombstones(){return this.request("POST","admin/tsdb/clean_tombstones")}},e.QueryResult=ht,e.RangeVector=dt,e.Rule=gt,e.RuleGroup=bt,e.SampleValue=ut,e.Target=pt}(r)}(0,r.exports)),r.exports);var o={getPrometheusStepAuto:(e,t,r)=>{const n=(t.getTime()-e.getTime())/1e3,o=25*Math.floor(n/r);return o<1?1:o},getStartAndEndDates(e){if(e.type=e.type?e.type:"absolute","absolute"===e.type)return{type:"absolute",start:e.start,end:e.end};if("relative"===e.type)return{type:"absolute",start:new Date((new Date).getTime()+e.start),end:new Date((new Date).getTime()+e.end)};throw new Error("Unexpected options.timeRange value.")},executeQueries:(e,t,r,o,s)=>{const i=null!=t.find((e=>"string"==typeof e)),a=e&&i?new n.PrometheusDriver(e):null;return t.map((e=>"string"==typeof e?a.rangeQuery(e,r,o,s):e(r,o,s).then((e=>n.QueryResult.fromJSON(e)))))}};class s{constructor(){this.message="No data to display",this.font="16px normal 'Helvetica Nueue'",this.textAlign="center",this.textBaseline="middle",this.direction="ltr"}}class i{constructor(){this.message=null,this.font="16px normal 'Helvetica Nueue'",this.textAlign="center",this.textBaseline="middle",this.direction="ltr"}}class a{constructor(){this.message="Loading data...",this.font="16px normal 'Helvetica Nueue'",this.textAlign="center",this.textBaseline="middle",this.direction="ltr"}}const l=["rgba(255, 99, 132, 1)","rgba(54, 162, 235, 1)","rgba(255, 206, 86, 1)","rgba(75, 192, 192, 1)","rgba(153, 102, 255, 1)","rgba(255, 159, 64, 1)"];class c{constructor(){this.chartType="timeseries",this.prometheus=null,this.fillGaps=!1,this.tension=.4,this.cubicInterpolationMode="default",this.stepped=!1,this.fill=!1,this.stacked=!1,this.borderWidth=3,this.borderColor=l,this.backgroundColor=l,this.noDataMsg=new s,this.errorMsg=new i,this.loadingMsg=new a,this.findInLabelMap=null,this.findInBorderColorMap=null,this.findInBackgroundColorMap=null,this.dataSetHook=null}assertPluginOptions(){if(!this.query)throw new Error("options.query is undefined");if(!this.timeRange)throw new Error("options.timeRange is undefined");if(null==this.timeRange.start)throw new Error("options.timeRange.start is undefined");if(null==this.timeRange.end)throw new Error("options.timeRange.end is undefined");if("object"!=typeof this.timeRange)throw new Error("options.timeRange must be a object");if("string"!=typeof this.timeRange.type)throw new Error("options.timeRange.type must be a string");if("relative"!=this.timeRange.type&&"absolute"!=this.timeRange.type)throw new Error('options.timeRange.type must be either "relative" or "absolute"');if("number"!=typeof this.timeRange.start&&("object"!=typeof this.timeRange.start||"Date"!=this.timeRange.start.constructor.name))throw new Error("options.timeRange.start must be a Date object (absolute) or integer (relative)");if("number"!=typeof this.timeRange.end&&("object"!=typeof this.timeRange.end||"Date"!=this.timeRange.end.constructor.name))throw new Error("options.timeRange.end must be a Date object (absolute) or integer (relative)");if(null!=this.timeRange.msUpdateInterval&&"number"!=typeof this.timeRange.msUpdateInterval)throw new Error("options.timeRange.msUpdateInterval must be a integer");if(null!=this.timeRange.msUpdateInterval&&this.timeRange.msUpdateInterval<1e3)throw new Error("options.timeRange.msUpdateInterval must be greater than 1s.")}getQueries(){var e,t;return"Array"!=(null===(t=null===(e=this.query)||void 0===e?void 0:e.constructor)||void 0===t?void 0:t.name)?[this.query]:this.query}}function u(e){const t=e.config.options.plugins["datasource-prometheus"];if(t&&"stat"===t.chartType)return;e.config.options.scales=e.config.options.scales?e.config.options.scales:{},e.config.options.scales.x=e.config.options.scales.x?e.config.options.scales.x:{},e.config.options.scales.y=e.config.options.scales.y?e.config.options.scales.y:{};const{ticks:r,time:n}=JSON.parse(JSON.stringify(e.config.options.scales.x));Object.assign(e.config.options.scales.x,{type:"timeseries",ticks:Object.assign({maxRotation:0,minRotation:0,major:{enabled:!0}},r),stacked:t.stacked,time:Object.assign({minUnit:"second"},n)}),Object.assign(e.config.options.scales.y,{stacked:t.stacked})}function d(e,t,r){const n=t.metric.toString();return e.findInLabelMap&&e.findInLabelMap(t.metric)||n}function f(e,t,r){const n=e.fill?e.backgroundColor[r%e.backgroundColor.length]:"transparent";return e.findInBackgroundColorMap&&e.findInBackgroundColorMap(t.metric)||n}function h(e,t,r){const n=e.borderColor[r%e.borderColor.length];return e.findInBorderColorMap&&e.findInBorderColorMap(t.metric)||n}class p{constructor(){this.loading=!1,this.rendering=!1,this.updateInterval=null,this.error=null}}return new class{constructor(){this.id="datasource-prometheus"}beforeInit(e,t){e["datasource-prometheus"]=new p}afterInit(e,t,r){if(!r)throw