How to update data in cloudant using nodejs cloudant module? - json

Question

Below mentioned sample json documents.It contains two fields.
{
"_id": "daef4a0e39c0c7a00feb721f6c4ce8b9",
"_rev": "2-8c7ef28df59ecbdaa23b536e58691416",
"name": "sukil",
"skills": "java"
}
In server.js
var express = require('express');
var app = express();
var cloudant = require('cloudant');
cloudant({account:"test", password:"test"}, function(err, cloudant) {
var alice = cloudant.use('opti-update')
alice.atomic("_design/sample", "inplace", "daef4a0e39c0c7a00feb721f6c4ce8b9", {field: "name", value: "bar"}, function (error, response) {
console.log(error+""+response);
})
})
Here _design/sample is a design document name and inplace is update function name then next is document id.It returns error is document update conflict and response is undefined.
In design document mentioned below
{
"_id": "_design/sample",
"_rev": "9-94393ee4665bdfd6fb283e3419a53f24",
"updates": {
"inplace": "function(doc,req){var field = req.body.field;var value = req.body.value;doc[field] = value;return [doc,''];}"
}
}
I want to update the data in cloudant using node cloudant module. I want to update the name field in json document.Above method i tried but it shows document update conflict error.How to resolve this?

Answer 1

The atomic method assumes the first parameter as the design document only. So need to explicitly specify "_design".
alice.atomic("sample", "inplace", "daef4a0e39c0c7a00feb721f6c4ce8b9", {field: "name", value: "bar"}, function (error, response) {
console.log(error+""+response);
})
This may be causing the problem.