htmx/path-params.js


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htmx.defineExtension("path-params", {
  onEvent: function (name, evt) {
    if (name === "htmx:configRequest") {
      evt.detail.path = evt.detail.path.replace(
        /{([^}]+)}/g,
        function (_, param) {
          var val = evt.detail.parameters[param];
          delete evt.detail.parameters[param];
          return val === undefined
            ? "{" + param + "}"
            : encodeURIComponent(val);
        },
      );
    }
  },
});