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I used loopback to generate my api and AngularJS to communicate with it. I have a model called Sync that contains the following records:
Sync": {
"34": "{\"uuid\":\"287c6625-4a95-4e11-847e-ad13e98c75a2\",\"table\":\"Property\",\"action\":\"create\",\"timeChanged\":1466598611995,\"id\":34}",
"35": "{\"uuid\":\"287c6625-4a95-4e11-847e-ad13e98c75a2\",\"table\":\"Property\",\"action\":\"update\",\"timeChanged\":1466598625506,\"id\":35}",
"36": "{\"uuid\":\"176aa537-d000-496a-895c-315f608ce494\",\"table\":\"Property\",\"action\":\"update\",\"timeChanged\":1466598649119,\"id\":36}"
}
in my sync.js Model file I am trying to write the following method that accepts number (long - the timeChanged) and should return all of the records that are have equal or equal timeChanged field.
This is where I am at:
Sync.getRecodsAfterTimestamp = function(timestamp, cb){
var response = [];
Sync.find(
function(list) {
/* success */
// DELETE ALL OF THE User Propery ratings associated with this property
for(i = 0; i < list.length; i++){
if(list[i].timeChanged == timestamp){
response += list[i];
console.log("Sync with id: " + list[i].id);
}
}
cb(null, response);
},
function(errorResponse) { /* error */ });
}
Sync.remoteMethod (
'getRecodsAfterTimestamp',
{
http: {path: '/getRecodsAfterTimestamp', verb: 'get'},
accepts: {arg: 'timeChanged', type: 'number', http: { source: 'query' } },
returns: {arg: 'name', type: 'Array'}
}
);
When I try this method in the loopback explorer I see this "AssertionError"
777
There are two ways to register a remote method: In code, in the model extension file ( modelName.js ). In JSON, in the model definition JSON file ( modelName.json ). LoopBack models have a remoteMethod () static method that you use to register a remote method:
We urge all LoopBack 3 users to migrate their applications to LoopBack 4 as soon as possible. Learn more about LoopBack's long term support policy. A remote method is a static method of a model, exposed over a custom REST endpoint. A remote method is a method of a model, exposed over a custom REST endpoint.
If you want to return data as the main response, for example an array, you can do so by setting the rootproperty within the returns object and omitting arg. returns:{type:'array',root:true} Setting a remote method route By default, a remote method is exposed at: POST http://apiRoot/modelName/methodName Where
If you don’t specify a mapping, LoopBack will determine the value as follows (assuming name as the name of the input parameter to resolve): If there is an HTTP request parameter args with JSON content, then it uses the value of args['name']. Otherwise, it uses req.param('name'). Returning data outside of a JSON field
Your problem must be due to incorrect arguments supplied to the Sync.find() method. (You have provided 2 functions for success and error scenarios). As per the Strongloop documentation, the persisted model's find function has 2 arguments viz. an optional filter object and a callback. The callback uses the node error-first style.
Please try changing your Sync.find() to something like below:
Sync.find(function(err, list) {
if (err){
//error callback
}
/* success */
// DELETE ALL OF THE User Propery ratings associated with this property
for(i = 0; i < list.length; i++){
if(list[i].timeChanged == timestamp){
response += list[i];
console.log("Sync with id: " + list[i].id);
}
}
cb(null, response);
});
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