I have an express app with a postgres backend where a user can add/delete recipes, and each time they do so they get an updated list of recipes. Adding a recipe is fine, but when I delete one it seems to get stuck in a redirect loop. In app.js I have

router.get('/delete/:d', delRec.deleteRecipe);

which calls the following code

exports.deleteRecipe = function(req, res){
  pg.connect(conString, function(err, client) {
    client.query('DELETE FROM recipes WHERE recipe_name = ', [req.params.d], function(err, result) {
      if(err) {
        return console.error('error running query', err);
      } else if (result) {
        pg.end();
        console.log('deleting');
      }
    });
  });
  res.redirect('recipes');
};

If I try delete a recipe, console.log('deleting') produces

deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting
deleting

The recipes route is below (sorry that it's so convoluted)

router.get('/recipes', function(req, res) {
  pg.connect(conString, function(err, client) {
    if(err) {
      return console.error('could not connect to postgres', err);
    }
    client.query('SELECT * FROM recipes', function(err, result) {
      if(err) {
        return console.error('error running query', err);
      }
      recipes = result.rows;

      for(var d in recipes) {
        if (recipes.hasOwnProperty(d)) {
          recipeList[d] = recipes[d].recipe_name;
        }
      }
      res.render('recipes', {recipes: recipes, recipeList: recipeList});
    });
  });
});