How to call remote method of one persisted model inside another remote method of another persisted model - loopbackjs

Question

here's what I tried in model1.js:
model1.remotemethod1 = function(id, data, cb) {
var model2 = app.models.model2;
model2.remotemethod2(id, data).then(response => {
cb(null, true);
});
};
this is my model2.js :
it has the definition of remotemethod2 .
'use strict';
module.exports = function(model2) {
model2.remotemethod2 = function(id, data, cb) {
var promise;
let tags = data.tags ? data.tags.slice() : [];
delete data.categories;
delete data.tags;
promise = model2.upsertWithWhere({
or: [
{barcode: data.barcode},
{id: data.id},
],
}, data);
promise.then(function(model2) {
model2.tags.destroyAll().then(function() {
for (let i = 0; i < tags.length; i++) {
model2.tags.add(tags[i]);
}
cb(null, model2);
});
});
};
};
But it dos not work !
I think that app.models.model2 does not give me the model with its remote methods ! maybe I should get an instance of the model2 !

Answer 1

var (VAR-NAME)= (CURRENT-MODEL).app.models.(ANOTHER_MODEL);
you now can use the other model by calling one of its methods for example
EX:
VAR-NAME.create();

Answer 2

Declare remotemethod1 in server.js app.start and you'll have access to the correct app.models.model2 and you will be able to use its remote method.
app.start = function() {
model1.remotemethod1 = (id, data, cb) => {
var model2 = app.models.model2;
model2.remotemethod2(id, data).then(response => {
cb(null, true);
});
};
model1.remoteMethod(
'remotemethod1', {
http: { path: '/remotemethod1', verb: 'post', status: 200, errorStatus: 400 },
accepts: [{arg: 'id', type: 'number'}, {arg: 'id', type: 'object'}],
returns: {arg: 'status', type : 'string' }
}) ;
}
// The rest of app.start...
EDIT you can also create the remote method will the correct app context with a file located in myprojectname/server/boot
`module.exports(app) {
/* Create remote methods here */
}`