104 lines
3.6 KiB
Go
104 lines
3.6 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"github.com/cabify/gotoprom"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/robfig/cron/v3"
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)
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var addr = flag.String("listen-address", "127.0.0.1:8080", "The address to listen on for HTTP requests.")
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type OntCovidData struct {
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Help string `json:"help"`
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Success bool `json:"success"`
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Result struct {
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Sort string `json:"sort"`
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IncludeTotal bool `json:"include_total"`
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ResourceID string `json:"resource_id"`
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Fields []struct {
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Type string `json:"type"`
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ID string `json:"id"`
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Info struct {
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Notes string `json:"notes"`
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TypeOverride string `json:"type_override"`
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Label string `json:"label"`
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} `json:"info,omitempty"`
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} `json:"fields"`
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RecordsFormat string `json:"records_format"`
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Records []struct {
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ID int `json:"_id"`
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ReportDate string `json:"report_date"`
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PreviousDayDosesAdministered int `json:"previous_day_doses_administered"`
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TotalDosesAdministered int `json:"total_doses_administered"`
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TotalDosesInFullyVaccinatedIndividuals int `json:"total_doses_in_fully_vaccinated_individuals"`
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TotalIndividualsFullyVaccinated int `json:"total_individuals_fully_vaccinated"`
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} `json:"records"`
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Limit int `json:"limit"`
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Links struct {
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Start string `json:"start"`
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Next string `json:"next"`
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} `json:"_links"`
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Total int `json:"total"`
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} `json:"result"`
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}
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var records struct {
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TotalDosesAdministered func() prometheus.Gauge `name:"total_doses_administered" help:"Total doses administered"`
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PreviousDayDosesAdministered func() prometheus.Gauge `name:"previous_day_doses_administered" help:"Previous day doses administered"`
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TotalDosesInFullyVaccinatedIndividuals func() prometheus.Gauge `name:"total_doses_in_fully_vaccinated_individuals" help:"Total doses in fully vaccinated individuals"`
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TotalIndividualsFullyVaccinated func() prometheus.Gauge `name:"total_individuals_fully_vaccinated" help:"Total individuals fully vaccinated"`
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EligiblePopulation func() prometheus.Gauge `name:"eligible_population" help:"Total population eligible for the vaccination"`
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}
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func init() {
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gotoprom.MustInit(&records, "ontvacstat")
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}
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func updateMetrics() {
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data_url := "https://data.ontario.ca/api/3/action/datastore_search?sort=report_date+desc&limit=1&resource_id=8a89caa9-511c-4568-af89-7f2174b4378c"
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eligiblePopulation := int64(12455397)
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resp, getErr := http.Get(data_url)
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if getErr != nil {
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log.Println(getErr)
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return
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}
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body, readErr := ioutil.ReadAll(resp.Body)
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if readErr != nil {
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log.Println(readErr)
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return
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}
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data := OntCovidData{}
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err := json.Unmarshal(body, &data)
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if err != nil {
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log.Println(err)
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return
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}
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records.TotalDosesAdministered().Set(float64(data.Result.Records[0].TotalDosesAdministered))
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records.PreviousDayDosesAdministered().Set(float64(data.Result.Records[0].PreviousDayDosesAdministered))
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records.TotalDosesInFullyVaccinatedIndividuals().Set(float64(data.Result.Records[0].TotalDosesInFullyVaccinatedIndividuals))
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records.TotalIndividualsFullyVaccinated().Set(float64(data.Result.Records[0].TotalIndividualsFullyVaccinated))
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records.EligiblePopulation().Set(float64(eligiblePopulation))
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}
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func main() {
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c := cron.New()
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c.AddFunc("@hourly", func() { updateMetrics() })
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c.Start()
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updateMetrics()
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flag.Parse()
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http.Handle("/metrics", promhttp.Handler())
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fmt.Println("Listening on port 8080")
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log.Fatal(http.ListenAndServe(*addr, nil))
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}
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