95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
package server
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import (
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metrics "com.navi.medici.janus/instrumentation"
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"com.navi.medici.janus/lib"
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"com.navi.medici.janus/utils"
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"compress/gzip"
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"time"
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"fmt"
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"strings"
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)
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var (
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healthyBool bool = true
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)
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const (
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JSON = "json"
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SUCCESS = "success"
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ERROR = "error"
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)
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type NewSchemaRequest struct {
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Topic string `json:"topic"`
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Schema string `json:"schema"`
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SchemaType string `json:"schema_type"`
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}
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type CustomResponse struct {
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Code int `json:"code"`
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Message string `json:"message"`
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}
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func eventsHandlerJson(w http.ResponseWriter, r *http.Request) {
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eventHandlerStartTime := utils.NanosToMillis(time.Now().UnixNano())
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headerName := "X-Correlation-Id"
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substring := "abcdabcd-1234"
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headerValue, ok := r.Header[headerName]
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if ok {
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if strings.HasPrefix(headerValue[0], substring) {
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w.Header().Set("Content-Type", "application/json")
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var rsp = CustomResponse{Code: 200, Message: "OK"}
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json.NewEncoder(w).Encode(rsp)
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fmt.Println("Dropped blacklisted request")
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return
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}
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}
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var reader io.Reader
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// check if body is gzip compressed
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if r.Header.Get("Content-Encoding") == "gzip" {
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var err error
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reader, err = gzip.NewReader(r.Body)
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if err != nil {
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// log.Printf(err)
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w.Header().Set("Content-Type", "application/json")
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http.Error(w, "Error while decompressing GZIP payload", http.StatusBadRequest)
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metrics.EventHandlerTimeHist.WithLabelValues(JSON, ERROR).Observe(float64(utils.NanosToMillis(time.Now().UnixNano()) - eventHandlerStartTime))
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return
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}
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} else {
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reader = r.Body
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}
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body, err := ioutil.ReadAll(reader)
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if err != nil {
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// log.Printf(err)
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w.Header().Set("Content-Type", "application/json")
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http.Error(w, "Request body invalid", http.StatusBadRequest)
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metrics.EventHandlerTimeHist.WithLabelValues(JSON, ERROR).Observe(float64(utils.NanosToMillis(time.Now().UnixNano()) - eventHandlerStartTime))
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return
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}
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w.Header().Set("Content-Type", "application/json")
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lib.JsonRequestChannel <- &lib.RequestObject{Body: body, Header: r.Header}
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var rsp = CustomResponse{Code: 200, Message: "OK"}
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json.NewEncoder(w).Encode(rsp)
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metrics.EventHandlerTimeHist.WithLabelValues(JSON, SUCCESS).Observe(float64(utils.NanosToMillis(time.Now().UnixNano()) - eventHandlerStartTime))
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}
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func healthHandler(w http.ResponseWriter, r *http.Request) {
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if healthyBool {
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w.Header().Set("Content-Type", "application/json")
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io.WriteString(w, "true")
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} else {
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http.Error(w, "server unhealthy", http.StatusServiceUnavailable)
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return
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}
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}
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