Node.js の Rest で Cloud Firestore のデータを更新 (Update)

firestore_update_rest.js

#! /usr/bin/node
// ---------------------------------------------------------------
//	firestore_update_rest.js
//
//					Feb/01/2020
//
// ---------------------------------------------------------------
var fs = require("fs")
var get_token = require('./get_token.js')

// ---------------------------------------------------------------
function patch_proc(token,url,str_json)
{
	const args = {
		data: str_json,
		headers: { "Authorization": "Bearer " + token}
		}

	try
	{
	client.patch(url, args, function (data, response) {
		console.log(data)
			})
	console.error ("*** 終了 ***")
	}
	catch (error)
	{
	console.error ("*** error *** from client.get ***")
	console.error (error)
	}
}

// ---------------------------------------------------------------
console.error ("*** 開始 ***")

const key_in=process.argv[2]
const population_in=process.argv[3]

console.log (key_in + "\t" + population_in)
const today = new Date ()
var ddx = (1900 + today.getYear ()) + "-" + (today.getMonth () +1)
ddx += "-" + today.getDate ()
console.log(ddx)

const env = process.env
const json_str = fs.readFileSync (env.GOOGLE_APPLICATION_CREDENTIALS,'utf8')
const dict_aa = JSON.parse (json_str)
const project_id = dict_aa['project_id']
console.log(project_id)

const token = get_token.get_token_proc()

const url="https://firestore.googleapis.com/v1/projects/" + project_id + "/databases/(default)/documents/cities/" + key_in

var Client = require('node-rest-client').Client

var client = new Client()

var args = {
    headers: { "Authorization": "Bearer " + token}
	}

client.get(url, args, function (data, response) {
	console.log(data.fields)

	data.fields.population.integerValue = population_in
	data.fields.date_mod.stringValue = ddx
	const str_json =  JSON.stringify(data)

	patch_proc(token,url,str_json)
	})

// ---------------------------------------------------------------

get_token.js はこちら
Node.js の Rest で Cloud Firestore のデータを作成 (Create)

実行コマンド

export NODE_PATH=/usr/lib/node_modules
export GOOGLE_APPLICATION_CREDENTIALS="***.json"
./firestore_update_rest.js t0921 8942700