Loopback: Single attributes updates, replacing or empty values for other attributes

[rahulrkr08]

When trying to call PUT call with one or two attributes, which replacing other attributes values as empty. If anyone know please help.

[b3rew]

i did not fully understand what you meant but normally
http://localhost:3000/api/modelName/58ad5c0490ac1a2865257f4a

with data

{
  "attribute": 'data'
}

will update the single attribute

[rahulrkr08]

Hi,

Data for POST call is:

-X POST 'http://localhost:3000/api/brands'

{ title: 'testing 333', status: 'active', description: 'string', brand_id: 493, slug: 'testing-333' }

Data for PUT call is:

-X PUT 'http://localhost:3000/api/brands/493'

{ title: 'testing 444', slug: 'testing-444' }

after updating remaining existing fields like "description", "status" is removed from DB. Can you please help me updating only some specific fields without deleting others. I am using Mongo DB and tried with My SQL. Same response I am getting.

Thanks in advance.

Regards,

[OscarVargasG]

I have the same issue.....
Some News?

[imekinox]

Use PATCH instead of PUT

[RohitoOo]

Use PATCH instead of PUT

Doesn't work. Could you please share your code?

[imekinox]

This is from an actual working app that is using apisauce, that updates just 2 properties of the model driver.

import apisauce from 'apisauce'

const api = apisauce.create({
    // base URL is read from the "constructor"
    baseURL,
    // here are some default headers
    headers: {
      'Cache-Control': 'no-cache'
    },
    // 10 second timeout...
    timeout: 10000
  })

const updateOneSignal = (userId, oneSignalUserId, oneSignalPushToken) => 
    api.patch(`/drivers/${userId}`, { oneSignalUserId, oneSignalPushToken })

This is the model

//driver.json
{
  "name": "Driver",
  "plural": "drivers",
  "base": "User",
  "idInjection": true,
  "options": {
    "validateUpsert": true
  },
  "properties": {
    "plate": {
      "type": "string",
      "required": true
    },
    "firstName": {
      "type": "string",
      "required": true
    },
    "lastName": {
      "type": "string",
      "required": true
    },
    "phone": {
      "type": "number"
    },
    "oneSignalUserId": {
      "type": "string"
    },
    "oneSignalPushToken": {
      "type": "string"
    }
  },
  "validations": [],
  "relations": {},
  "acls": [],
  "methods": {}
}

dependencies:

  "dependencies": {
    "compression": "^1.0.3",
    "cors": "^2.5.2",
    "helmet": "^3.10.0",
    "loopback": "^3.22.0",
    "loopback-boot": "^2.6.5",
    "loopback-component-explorer": "^6.2.0",
    "loopback-connector-mongodb": "^3.9.2",
    "serve-favicon": "^2.0.1",
    "strong-error-handler": "^3.0.0"
  },