mirror of
https://git.mirrors.martin98.com/https://github.com/SigNoz/signoz
synced 2025-10-13 05:21:31 +08:00
30961da59f
* added signoz.db to gitignore * model and crud methods for dashboard package * added signoz.db to dockerignore * feat: dashboards crud WIP * chore: moving response format to correct file * chore: adding dependencies for sqlite3 * feat: CRUD APIs ready for dashboards * fix: sqlite needs cgo enabled and hence need to add some flags in building go code * feat: provision dashboards using json * chore: mounting dashboard folder to container
768 lines
19 KiB
Go
768 lines
19 KiB
Go
package app
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/jmoiron/sqlx"
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jsoniter "github.com/json-iterator/go"
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_ "github.com/mattn/go-sqlite3"
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"github.com/posthog/posthog-go"
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"github.com/prometheus/prometheus/promql"
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"go.signoz.io/query-service/app/dashboards"
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"go.signoz.io/query-service/model"
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"go.uber.org/zap"
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)
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type status string
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const (
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statusSuccess status = "success"
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statusError status = "error"
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)
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// NewRouter creates and configures a Gorilla Router.
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func NewRouter() *mux.Router {
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return mux.NewRouter().UseEncodedPath()
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}
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// APIHandler implements the query service public API by registering routes at httpPrefix
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type APIHandler struct {
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// queryService *querysvc.QueryService
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// queryParser queryParser
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basePath string
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apiPrefix string
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reader *Reader
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pc *posthog.Client
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distinctId string
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db *sqlx.DB
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ready func(http.HandlerFunc) http.HandlerFunc
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}
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// NewAPIHandler returns an APIHandler
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func NewAPIHandler(reader *Reader, pc *posthog.Client, distinctId string) (*APIHandler, error) {
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aH := &APIHandler{
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reader: reader,
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pc: pc,
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distinctId: distinctId,
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}
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aH.ready = aH.testReady
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err := dashboards.InitDB("signoz.db")
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if err != nil {
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return nil, err
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}
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errReadingDashboards := dashboards.LoadDashboardFiles()
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if errReadingDashboards != nil {
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return nil, errReadingDashboards
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}
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return aH, nil
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}
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type structuredResponse struct {
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Data interface{} `json:"data"`
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Total int `json:"total"`
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Limit int `json:"limit"`
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Offset int `json:"offset"`
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Errors []structuredError `json:"errors"`
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}
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type structuredError struct {
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Code int `json:"code,omitempty"`
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Msg string `json:"msg"`
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// TraceID ui.TraceID `json:"traceID,omitempty"`
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}
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var corsHeaders = map[string]string{
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"Access-Control-Allow-Headers": "Accept, Authorization, Content-Type, Origin",
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"Access-Control-Allow-Methods": "GET, OPTIONS",
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"Access-Control-Allow-Origin": "*",
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"Access-Control-Expose-Headers": "Date",
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}
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// Enables cross-site script calls.
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func setCORS(w http.ResponseWriter) {
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for h, v := range corsHeaders {
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w.Header().Set(h, v)
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}
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}
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type apiFunc func(r *http.Request) (interface{}, *model.ApiError, func())
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// Checks if server is ready, calls f if it is, returns 503 if it is not.
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func (aH *APIHandler) testReady(f http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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f(w, r)
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}
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}
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type response struct {
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Status status `json:"status"`
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Data interface{} `json:"data,omitempty"`
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ErrorType model.ErrorType `json:"errorType,omitempty"`
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Error string `json:"error,omitempty"`
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}
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func (aH *APIHandler) respondError(w http.ResponseWriter, apiErr *model.ApiError, data interface{}) {
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json := jsoniter.ConfigCompatibleWithStandardLibrary
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b, err := json.Marshal(&response{
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Status: statusError,
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ErrorType: apiErr.Typ,
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Error: apiErr.Err.Error(),
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Data: data,
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})
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if err != nil {
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zap.S().Error("msg", "error marshalling json response", "err", err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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var code int
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switch apiErr.Typ {
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case model.ErrorBadData:
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code = http.StatusBadRequest
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case model.ErrorExec:
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code = 422
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case model.ErrorCanceled, model.ErrorTimeout:
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code = http.StatusServiceUnavailable
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case model.ErrorInternal:
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code = http.StatusInternalServerError
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case model.ErrorNotFound:
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code = http.StatusNotFound
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case model.ErrorNotImplemented:
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code = http.StatusNotImplemented
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default:
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code = http.StatusInternalServerError
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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if n, err := w.Write(b); err != nil {
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zap.S().Error("msg", "error writing response", "bytesWritten", n, "err", err)
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}
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}
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func (aH *APIHandler) respond(w http.ResponseWriter, data interface{}) {
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json := jsoniter.ConfigCompatibleWithStandardLibrary
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b, err := json.Marshal(&response{
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Status: statusSuccess,
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Data: data,
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})
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if err != nil {
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zap.S().Error("msg", "error marshalling json response", "err", err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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if n, err := w.Write(b); err != nil {
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zap.S().Error("msg", "error writing response", "bytesWritten", n, "err", err)
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}
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}
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// RegisterRoutes registers routes for this handler on the given router
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func (aH *APIHandler) RegisterRoutes(router *mux.Router) {
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router.HandleFunc("/api/v1/query_range", aH.queryRangeMetrics).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/query", aH.queryMetrics).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/dashboards", aH.getDashboards).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/dashboards", aH.createDashboards).Methods(http.MethodPost)
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router.HandleFunc("/api/v1/dashboards/{uuid}", aH.getDashboard).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/dashboards/{uuid}", aH.updateDashboard).Methods(http.MethodPut)
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router.HandleFunc("/api/v1/dashboards/{uuid}", aH.deleteDashboard).Methods(http.MethodDelete)
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router.HandleFunc("/api/v1/user", aH.user).Methods(http.MethodPost)
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// router.HandleFunc("/api/v1/get_percentiles", aH.getApplicationPercentiles).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/services", aH.getServices).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/services/list", aH.getServicesList).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/overview", aH.getServiceOverview).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/dbOverview", aH.getServiceDBOverview).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/externalAvgDuration", aH.GetServiceExternalAvgDuration).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/externalErrors", aH.getServiceExternalErrors).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/external", aH.getServiceExternal).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/{service}/operations", aH.getOperations).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/service/top_endpoints", aH.getTopEndpoints).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/spans", aH.searchSpans).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/spans/aggregates", aH.searchSpansAggregates).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/tags", aH.searchTags).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/traces/{traceId}", aH.searchTraces).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/usage", aH.getUsage).Methods(http.MethodGet)
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router.HandleFunc("/api/v1/serviceMapDependencies", aH.serviceMapDependencies).Methods(http.MethodGet)
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}
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func Intersection(a, b []int) (c []int) {
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m := make(map[int]bool)
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for _, item := range a {
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m[item] = true
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}
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for _, item := range b {
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if _, ok := m[item]; ok {
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c = append(c, item)
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}
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}
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return
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}
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func (aH *APIHandler) getDashboards(w http.ResponseWriter, r *http.Request) {
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allDashboards, err := dashboards.GetDashboards()
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if err != nil {
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aH.respondError(w, err, nil)
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return
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}
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tagsFromReq, ok := r.URL.Query()["tags"]
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if !ok || len(tagsFromReq) == 0 || tagsFromReq[0] == "" {
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aH.respond(w, &allDashboards)
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return
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}
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tags2Dash := make(map[string][]int)
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for i := 0; i < len(*allDashboards); i++ {
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tags, ok := (*allDashboards)[i].Data["tags"].([]interface{})
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if !ok {
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continue
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}
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tagsArray := make([]string, len(tags))
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for i, v := range tags {
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tagsArray[i] = v.(string)
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}
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for _, tag := range tagsArray {
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tags2Dash[tag] = append(tags2Dash[tag], i)
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}
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}
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inter := make([]int, len(*allDashboards))
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for i := range inter {
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inter[i] = i
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}
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for _, tag := range tagsFromReq {
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inter = Intersection(inter, tags2Dash[tag])
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}
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filteredDashboards := []dashboards.Dashboard{}
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for _, val := range inter {
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dash := (*allDashboards)[val]
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filteredDashboards = append(filteredDashboards, dash)
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}
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aH.respond(w, &filteredDashboards)
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}
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func (aH *APIHandler) deleteDashboard(w http.ResponseWriter, r *http.Request) {
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uuid := mux.Vars(r)["uuid"]
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err := dashboards.DeleteDashboard(uuid)
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if err != nil {
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aH.respondError(w, err, nil)
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return
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}
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aH.respond(w, nil)
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}
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func (aH *APIHandler) updateDashboard(w http.ResponseWriter, r *http.Request) {
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uuid := mux.Vars(r)["uuid"]
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var postData map[string]interface{}
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err := json.NewDecoder(r.Body).Decode(&postData)
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if err != nil {
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aH.respondError(w, &model.ApiError{Typ: model.ErrorBadData, Err: err}, "Error reading request body")
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return
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}
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err = dashboards.IsPostDataSane(&postData)
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if err != nil {
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aH.respondError(w, &model.ApiError{Typ: model.ErrorBadData, Err: err}, "Error reading request body")
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return
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}
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if postData["uuid"] != uuid {
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aH.respondError(w, &model.ApiError{Typ: model.ErrorBadData, Err: fmt.Errorf("uuid in request param and uuid in request body do not match")}, "Error reading request body")
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return
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}
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dashboard, apiError := dashboards.UpdateDashboard(&postData)
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if apiError != nil {
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aH.respondError(w, apiError, nil)
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return
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}
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aH.respond(w, dashboard)
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}
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func (aH *APIHandler) getDashboard(w http.ResponseWriter, r *http.Request) {
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uuid := mux.Vars(r)["uuid"]
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dashboard, apiError := dashboards.GetDashboard(uuid)
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if apiError != nil {
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aH.respondError(w, apiError, nil)
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return
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}
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aH.respond(w, dashboard)
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}
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func (aH *APIHandler) createDashboards(w http.ResponseWriter, r *http.Request) {
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var postData map[string]interface{}
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err := json.NewDecoder(r.Body).Decode(&postData)
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if err != nil {
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aH.respondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, "Error reading request body")
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return
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}
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err = dashboards.IsPostDataSane(&postData)
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if err != nil {
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aH.respondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, "Error reading request body")
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return
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}
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dash, apiErr := dashboards.CreateDashboard(&postData)
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if apiErr != nil {
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aH.respondError(w, apiErr, nil)
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return
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}
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aH.respond(w, dash)
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}
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func (aH *APIHandler) queryRangeMetrics(w http.ResponseWriter, r *http.Request) {
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query, apiErrorObj := parseQueryRangeRequest(r)
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if apiErrorObj != nil {
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aH.respondError(w, apiErrorObj, nil)
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return
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}
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// zap.S().Info(query, apiError)
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ctx := r.Context()
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if to := r.FormValue("timeout"); to != "" {
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var cancel context.CancelFunc
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timeout, err := parseMetricsDuration(to)
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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ctx, cancel = context.WithTimeout(ctx, timeout)
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defer cancel()
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}
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res, qs, apiError := (*aH.reader).GetQueryRangeResult(ctx, query)
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if apiError != nil {
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aH.respondError(w, apiError, nil)
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return
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}
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if res.Err != nil {
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zap.S().Error(res.Err)
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}
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if res.Err != nil {
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switch res.Err.(type) {
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case promql.ErrQueryCanceled:
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aH.respondError(w, &model.ApiError{model.ErrorCanceled, res.Err}, nil)
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case promql.ErrQueryTimeout:
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aH.respondError(w, &model.ApiError{model.ErrorTimeout, res.Err}, nil)
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}
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aH.respondError(w, &model.ApiError{model.ErrorExec, res.Err}, nil)
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}
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response_data := &model.QueryData{
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ResultType: res.Value.Type(),
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Result: res.Value,
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Stats: qs,
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}
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aH.respond(w, response_data)
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}
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func (aH *APIHandler) queryMetrics(w http.ResponseWriter, r *http.Request) {
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queryParams, apiErrorObj := parseInstantQueryMetricsRequest(r)
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if apiErrorObj != nil {
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aH.respondError(w, apiErrorObj, nil)
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return
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}
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// zap.S().Info(query, apiError)
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ctx := r.Context()
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if to := r.FormValue("timeout"); to != "" {
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var cancel context.CancelFunc
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timeout, err := parseMetricsDuration(to)
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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ctx, cancel = context.WithTimeout(ctx, timeout)
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defer cancel()
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}
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res, qs, apiError := (*aH.reader).GetInstantQueryMetricsResult(ctx, queryParams)
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if apiError != nil {
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aH.respondError(w, apiError, nil)
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return
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}
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if res.Err != nil {
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zap.S().Error(res.Err)
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}
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if res.Err != nil {
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switch res.Err.(type) {
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case promql.ErrQueryCanceled:
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aH.respondError(w, &model.ApiError{model.ErrorCanceled, res.Err}, nil)
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case promql.ErrQueryTimeout:
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aH.respondError(w, &model.ApiError{model.ErrorTimeout, res.Err}, nil)
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}
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aH.respondError(w, &model.ApiError{model.ErrorExec, res.Err}, nil)
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}
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response_data := &model.QueryData{
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ResultType: res.Value.Type(),
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Result: res.Value,
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Stats: qs,
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}
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aH.respond(w, response_data)
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}
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func (aH *APIHandler) user(w http.ResponseWriter, r *http.Request) {
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email := r.URL.Query().Get("email")
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var err error
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if len(email) == 0 {
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err = fmt.Errorf("Email param is missing")
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}
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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(*aH.pc).Enqueue(posthog.Identify{
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DistinctId: aH.distinctId,
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Properties: posthog.NewProperties().
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Set("email", email),
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})
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}
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func (aH *APIHandler) getOperations(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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serviceName := vars["service"]
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var err error
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if len(serviceName) == 0 {
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err = fmt.Errorf("service param not found")
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}
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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result, err := (*aH.reader).GetOperations(context.Background(), serviceName)
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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aH.writeJSON(w, r, result)
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}
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func (aH *APIHandler) getServicesList(w http.ResponseWriter, r *http.Request) {
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result, err := (*aH.reader).GetServicesList(context.Background())
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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aH.writeJSON(w, r, result)
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}
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func (aH *APIHandler) searchTags(w http.ResponseWriter, r *http.Request) {
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serviceName := r.URL.Query().Get("service")
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result, err := (*aH.reader).GetTags(context.Background(), serviceName)
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if aH.handleError(w, err, http.StatusBadRequest) {
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return
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}
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|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getTopEndpoints(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetTopEndpointsRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetTopEndpoints(context.Background(), query)
|
|
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getUsage(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetUsageRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetUsage(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getServiceDBOverview(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServiceExternalRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceDBOverview(context.Background(), query)
|
|
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getServiceExternal(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServiceExternalRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceExternal(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) GetServiceExternalAvgDuration(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServiceExternalRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceExternalAvgDuration(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getServiceExternalErrors(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServiceExternalRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceExternalErrors(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getServiceOverview(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServiceOverviewRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceOverview(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) getServices(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServicesRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServices(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
if len(*result) != 4 {
|
|
(*aH.pc).Enqueue(posthog.Capture{
|
|
DistinctId: distinctId,
|
|
Event: "Different Number of Services",
|
|
Properties: posthog.NewProperties().Set("number", len(*result)),
|
|
})
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
}
|
|
|
|
func (aH *APIHandler) serviceMapDependencies(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseGetServicesRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).GetServiceMapDependencies(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
}
|
|
|
|
func (aH *APIHandler) searchTraces(w http.ResponseWriter, r *http.Request) {
|
|
|
|
vars := mux.Vars(r)
|
|
traceId := vars["traceId"]
|
|
|
|
result, err := (*aH.reader).SearchTraces(context.Background(), traceId)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
|
|
}
|
|
|
|
func (aH *APIHandler) searchSpansAggregates(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseSearchSpanAggregatesRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
result, err := (*aH.reader).SearchSpansAggregate(context.Background(), query)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
}
|
|
|
|
func (aH *APIHandler) searchSpans(w http.ResponseWriter, r *http.Request) {
|
|
|
|
query, err := parseSpanSearchRequest(r)
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
// result, err := druidQuery.SearchSpans(aH.client, query)
|
|
result, err := (*aH.reader).SearchSpans(context.Background(), query)
|
|
|
|
if aH.handleError(w, err, http.StatusBadRequest) {
|
|
return
|
|
}
|
|
|
|
aH.writeJSON(w, r, result)
|
|
}
|
|
|
|
// func (aH *APIHandler) getApplicationPercentiles(w http.ResponseWriter, r *http.Request) {
|
|
// // vars := mux.Vars(r)
|
|
|
|
// query, err := parseApplicationPercentileRequest(r)
|
|
// if aH.handleError(w, err, http.StatusBadRequest) {
|
|
// return
|
|
// }
|
|
|
|
// result, err := (*aH.reader).GetApplicationPercentiles(context.Background(), query)
|
|
// if aH.handleError(w, err, http.StatusBadRequest) {
|
|
// return
|
|
// }
|
|
// aH.writeJSON(w, r, result)
|
|
// }
|
|
|
|
func (aH *APIHandler) handleError(w http.ResponseWriter, err error, statusCode int) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
if statusCode == http.StatusInternalServerError {
|
|
zap.S().Error("HTTP handler, Internal Server Error", zap.Error(err))
|
|
}
|
|
structuredResp := structuredResponse{
|
|
Errors: []structuredError{
|
|
{
|
|
Code: statusCode,
|
|
Msg: err.Error(),
|
|
},
|
|
},
|
|
}
|
|
resp, _ := json.Marshal(&structuredResp)
|
|
http.Error(w, string(resp), statusCode)
|
|
return true
|
|
}
|
|
|
|
func (aH *APIHandler) writeJSON(w http.ResponseWriter, r *http.Request, response interface{}) {
|
|
marshall := json.Marshal
|
|
if prettyPrint := r.FormValue("pretty"); prettyPrint != "" && prettyPrint != "false" {
|
|
marshall = func(v interface{}) ([]byte, error) {
|
|
return json.MarshalIndent(v, "", " ")
|
|
}
|
|
}
|
|
resp, _ := marshall(response)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.Write(resp)
|
|
}
|