在Sails操作中访问url参数

Question

I have a sails app, and I am agttempting to load a page with some data from a database, based on the id of the recipe model.

I have the route 'GET /recipes/single-recipe/:id': { action: 'recipes/view-single-recipe' } set up, and am accessing the url http://localhost:1337/recipes/single-recipe/5b8c169936f1df3439fa39c7

In my view-single-recipe action I'm attempting to load the recipe with the id of the URL parameter by accessing req.param('id') but req is showing undefined.

 //view-single-recipe.js module.exports = { friendlyName: 'View single recipe', description: 'Display "Single recipe" page.', exits: { success: { viewTemplatePath: 'pages/recipes/single-recipe' } }, fn: async function(inputs, exits) { const recipe = await Recipe.find({ id: req.param('id') //req undefiend }); // Respond with view. return exits.success({ recipe: recipe }); } }; 

Getting error: error: Sending 500 ("Server Error") response: ReferenceError: req is not defined

How can I load the correct recipe using the url param?

Answer 1

If you have the route /recipes/single-recipe/:id' , then the " id " from the URL path will be available as req.params.id . Otherwise, it defaults to {} For more info

UPDATE:

But when it comes to Actions and Controllers , Sails.js uses the machine-as-action module to automatically create route-handling functions out of machines like the example shows. See the machine-as-action docs for more information .

Note that machine-as-action provides actions with access to the request object as this.req instead of just req , otherwise, there'll be a server error of req is not defined . So, for future references don't forget the this keyword.