Develop Reference

Remote method in LoopBack not being called

When calling a remote method in my LoopBack project, it seems to only return an empty array. I don't think it is really being called at all but perhaps the default implementation is being called.
member.js
module.exports = function(Member) {
Member.getProjectsForMember = function(id, callback) {
console.error('HERE');
return callback(null, {'test': '123'});
};
};
member.json
{
"name": "member",
"base": "User",
"idInjection": true,
"options": {
"validateUpsert": true
},
"properties": {
"name": {
"type": "string",
"required": true
}
},
"validations": [],
"relations": {
"projects": {
"type": "hasMany",
"model": "project",
"options": {
"nestRemoting": false
}
}
},
"acls": [{
"accessType": "*",
"principalType": "ROLE",
"principalId": "$authenticated",
"permission": "ALLOW"
},
{
"accessType": "*",
"principalType": "ROLE",
"principalId": "$unauthenticated",
"permission": "DENY"
}
],
"methods": {
"getProjectsForMember": {
"accepts": [{
"arg": "id",
"type": "number",
"required": true,
"http": {
"source": "path"
}
}],
"returns": [{
"arg": "projects",
"type": "Object",
"root": true,
}],
"http": [{
"path": "/:id/projects",
"verb": "get"
}]
}
}
}
I am calling it using the LoopBack API Explorer via a GET to /members/{id}/projects:
http://localhost:3000/api/members/3e26u0aa62155715vcb52afa/projects?access_token=R6GKVHwFuMG2caJexuyoMd0JSNOWtvLVXIEmRj1IkNSrM54bwomQLxHcpqlyFaHk
The response is []. I would expect to see the response of {'test': '123'} and the 'HERE' logged to the terminal but I do not.

scope property is not being applied to loopback model

I have used an "include" : "organization" query in the scope of my request.json file, which is a related model. But, the relation is not being included in the resulting output from a query.
The model (request.json file) looks like...
{
"name": "request",
"base": "PersistedModel",
"idInjection": true,
"options": {
"validateUpsert": true
},
"properties": {
"amount": {
"type": "number",
"required": true
},
"deadline": {
"type": "date",
"required": true
}
},
"validations": [],
"relations": {
"organization": {
"type": "belongsTo",
"model": "organization",
"foreignKey": "",
"options": {
"nestRemoting": true
}
}
},
"scope" : {
"include" : "organization"
}
}

In order to include another model, you must have a foreignKey defined in your model relations.
"relations": {
"organization": {
"type": "belongsTo",
"model": "organization",
"foreignKey": "organizationId",
"options": {
"nestRemoting": true
}
}
},
set the name of the foreignKey that you want to use. organizationId in this case, and this field will be added to your model request

Post request with array

I want to test my Web API with a postman on the javascript app.
I have the following swagger.
"/attachment/erase": {
"post": {
"summary": "Erase ",
"consumes": [
"application/json"
],
"produces": [
"application/json"
],
"parameters": [
{
"name": "folder",
"in": "query",
"type": "string",
"description": "folder('s) detail",
"required": true
},
{
"name": "type",
"in": "query",
"type": "string",
"description": "ABC or BCD",
"required": true
},
{
"name": "body",
"in": "body",
"required": true,
"schema": {
"type": "object",
"required": ["files"],
"properties": {
"attachments": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"description": "The file(s) to delete"
}
],
"responses": {
"200": {
"description": "file(s) erased."
}
}
}
}
So I send the following request :
with the following body :
In return, I get an error 415.
What I am doing wrong?

You're sending x-www-form-urlencoded when the API is expecting application/json.

How about passing a form-data parameter file, please refer the image

Loopback query with where inside include

I am trying to query my data the following way:
const filter = {where: {activity_id: activity_id, include: {relation: 'planGoal', scope: {where: {activity_goal_id: goal_id}}}}};
However this doesn't seem to work only the activity_id filter is applied and the wrong data is returned.
So my question is how do I query data within an include? and is it even possible?
For reference, here are the models in question:
{
"name": "plan_goal_has_action_option",
"base": "PersistedModel",
"idInjection": true,
"options": {
"validateUpsert": true
},
"properties": {
"id": {
"type": "number"
},
"activity_id": {
"type": "number"
},
"plan_has_goal_id": {
"type": "number"
},
"action_option": {
"type": "string"
}
},
"validations": [],
"relations": {
"planGoal": {
"type": "belongsTo",
"model": "plan_has_goal",
"foreignKey": "plan_has_goal_id"
}
},
"acls": [],
"methods": {}
}
{
"name": "plan_has_goal",
"base": "PersistedModel",
"idInjection": true,
"options": {
"validateUpsert": true
},
"properties": {
"id": {
"type": "number"
},
"activity_id": {
"type": "number"
},
"activity_goal_id": {
"type": "number"
}
},
"validations": [],
"relations": {
"goal": {
"type": "belongsTo",
"model": "activity_goal",
"foreignKey": "activity_goal_id"
},
"actions": {
"type": "hasMany",
"model": "plan_goal_has_action_option",
"foreignKey": "plan_has_goal_id"
}
},
"acls": [],
"methods": {}
}

include and where are two different filters:
{
where: {
activity_id: activity_id
},
include: {
relation: 'planGoal',
scope: {
where: {
activity_goal_id: goal_id
}
}
}
}

Loopback query with join

in loopback, I started with this model:
[
{
"mov_id": 0,
"mov_tipo": "string",
"mov_valore": 0,
"mov_causale_fk": 0,
"mov_conto_fk": 0,
"mov_data": "2017-10-04T09:02:19.620Z",
"mov_note": "string",
"mov_utente_fk": 0,
"mov_aggiunta": "2017-10-04T09:02:19.620Z"
}
]
then I added two relations, which correspond to two Foreign Keys in my MySQL database:
"relations": {
"causale_fk": {
"type": "hasOne",
"model": "causali",
"foreignKey": "causale_id",
"options": {
"nestRemoting": true
}
},
"conto_fk": {
"type": "hasOne",
"model": "conti",
"foreignKey": "conto_id",
"options": {
"nestRemoting": true
}
}
},
I would also like to see the fields in those models, as if I did make a query with JOIN.
it's possible??

ok, i resolved with scope.
this is the model:
{
"name": "movimenti",
"plural": "movimenti",
"base": "PersistedModel",
"idInjection": true,
"options": {
"validateUpsert": true
},
"scope": {
"include": [
"causale_fk",
"conto_fk"
]
},
"properties": {
"mov_id": {
"type": "number",
"id": true,
"required": true
},
"mov_valore": {
"type": "number",
"required": true
}
},
"validations": [],
"relations": {
"causale_fk": {
"type": "hasOne",
"model": "causali",
"foreignKey": "causale_id"
},
"conto_fk": {
"type": "hasOne",
"model": "conti",
"foreignKey": "conto_id",
"include": "conti"
}
},
"acls": [],
"methods": {}
}
bye!!

You can your to add options in your filter, and the particular option you need to set is include. Check here for more details.
This is an example for you particular needs:
{
Model.find({include:['causale_fk','conto_fk']}, function(){});
}