52b80583b5
Improve logging, constants for routes, RWMutex for ExerciseRunners, use url.URL for websocket url building
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
package api
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import (
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"encoding/json"
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"gitlab.hpi.de/codeocean/codemoon/poseidon/api/dto"
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"net/http"
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)
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func writeInternalServerError(writer http.ResponseWriter, err error, errorCode dto.ErrorCode) {
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sendJson(writer, &dto.InternalServerError{Message: err.Error(), ErrorCode: errorCode}, http.StatusInternalServerError)
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}
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func writeBadRequest(writer http.ResponseWriter, err error) {
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sendJson(writer, &dto.ClientError{Message: err.Error()}, http.StatusBadRequest)
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}
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func writeNotFound(writer http.ResponseWriter, err error) {
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sendJson(writer, &dto.ClientError{Message: err.Error()}, http.StatusNotFound)
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}
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func sendJson(writer http.ResponseWriter, content interface{}, httpStatusCode int) {
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writer.Header().Set("Content-Type", "application/json")
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writer.WriteHeader(httpStatusCode)
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response, err := json.Marshal(content)
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if err != nil {
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// cannot produce infinite recursive loop, since json.Marshal of dto.InternalServerError won't return an error
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writeInternalServerError(writer, err, dto.ErrorUnknown)
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return
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}
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if _, err = writer.Write(response); err != nil {
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log.WithError(err).Error("Could not write JSON response")
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http.Error(writer, err.Error(), http.StatusInternalServerError)
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}
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}
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func parseJSONRequestBody(writer http.ResponseWriter, request *http.Request, structure interface{}) error {
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if err := json.NewDecoder(request.Body).Decode(structure); err != nil {
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writeBadRequest(writer, err)
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return err
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}
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return nil
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}
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