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templateversionparam.go
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templateversionparam.go
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package httpmw
import (
"context"
"database/sql"
"errors"
"fmt"
"net/http"
"github.com/go-chi/chi/v5"
"github.com/coder/coder/coderd/database"
"github.com/coder/coder/coderd/httpapi"
)
type templateVersionParamContextKey struct{}
// TemplateVersionParam returns the template version from the ExtractTemplateVersionParam handler.
func TemplateVersionParam(r *http.Request) database.TemplateVersion {
templateVersion, ok := r.Context().Value(templateVersionParamContextKey{}).(database.TemplateVersion)
if !ok {
panic("developer error: template version param middleware not provided")
}
return templateVersion
}
// ExtractTemplateVersionParam grabs template version from the "templateversion" URL parameter.
func ExtractTemplateVersionParam(db database.Store) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
templateVersionID, parsed := parseUUID(rw, r, "templateversion")
if !parsed {
return
}
templateVersion, err := db.GetTemplateVersionByID(r.Context(), templateVersionID)
if errors.Is(err, sql.ErrNoRows) {
httpapi.Write(rw, http.StatusNotFound, httpapi.Response{
Message: fmt.Sprintf("template version %q does not exist", templateVersionID),
})
return
}
if err != nil {
httpapi.Write(rw, http.StatusInternalServerError, httpapi.Response{
Message: fmt.Sprintf("get template version: %s", err.Error()),
})
return
}
ctx := context.WithValue(r.Context(), templateVersionParamContextKey{}, templateVersion)
chi.RouteContext(ctx).URLParams.Add("organization", templateVersion.OrganizationID.String())
next.ServeHTTP(rw, r.WithContext(ctx))
})
}
}