How to use jsonschema for Loopback remoteMethod? - jsonschema

Question

In my app I want define JSON schemas for custom API.
For example from: http://docs.strongloop.com/display/public/LB/Remote+methods#Remotemethods-Example
module.exports = function(Person){
Person.greet = function(msg, cb) {
cb(null, 'Greetings... ' + msg);
}
Person.remoteMethod(
'greet',
{
accepts: <generate definitions from jsonschema>,
returns: <generate definitions from jsonschema>
}
);
};
How to do that?
This is right way?
MY SOLUTION - validation decorator + remote method params with object type
var validate = require('jsonschema').validate;
bySchema = function (schema) {
return function (func) {
return function () {
var data = arguments[0],
callback = arguments[1];
var result = validate(data, schema);
if (result.errors.length > 0) {
// some errors in request body
callback(null, {
success: false,
error: 'schema validation error',
});
return;
}
return func.apply(this, arguments);
};
};
};
defaultRemoteArguments = {
accepts: {
arg: 'data',
type: 'object',
http: function(ctx) {
return ctx.req.body;
}
},
returns: {
arg: 'data',
type: 'object',
root: true
}
};
Example:
Auth.login = bySchema(require('<path to shcemajson json for this request>'))
(function(data, cb) {
// process request
});
Auth.remoteMethod('login', defaultRemoteArguments);
In this solution contrib loopback explorer will not be useful, because request/response are objects, not fields...

Answer 1

The correct way to do it is to set the type in the returns attribute to the model name.
In your case you would write:
Person.remoteMethod(
'greet',
{
...
returns: {type:'Person', ...}
}
);

Answer 2

You need to modify your output to match the format accepted by the returns property.
...
returns: [{arg: "key1", type: "string"}, {arg: "key2", type: "object"}, ...];
...