// Example For Get Tag List API by using request in nodejs
// written by yeony kim
// sensor1, sensor2 is applied in lake
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
const express = require('express');
const app = express();
const API_KEY = "YOUR_API_KEY";
const LAKE_ID = "YOUR_LAKE_ID"
const URL = "https://" + LAKE_ID + ".machlake.com/lakes/tags";
// CASE - Select Tag
app.get(
'/get_tag_list_with_name', function(req, res) {
const QueryParams = new URLSearchParams()
QueryParams.set("name", "sensor1")
var request = require('request');
var option = {
url: URL + "?" + QueryParams.toString(),
headers: {
'Content-Type': 'application/json',
'x-api-key': API_KEY
}
};
request.get(option, function(error, response, body) {
if (!error) {
res.writeHead(200);
res.end(body);
console.log(body) // {"data":{"tag":[{"name":"sensor1"}]},"status":"success"}
}
})
}
)
// CASE - Select Tag with SQL Limit
app.get(
'/get_tag_list_with_name_limit', function(req, res) {
const QueryParams = new URLSearchParams()
QueryParams.set("name", "sensor")
QueryParams.set("limit", 1)
var request = require('request');
var option = {
url: URL + "?" + QueryParams.toString(),
headers: {
'Content-Type': 'application/json',
'x-api-key': API_KEY
}
};
request.get(option, function(error, response, body) {
if (!error) {
res.writeHead(200);
res.end(body);
console.log(body) // {"data":{"tag":[{"name":"sensor1"}]},"status":"success"}
}
})
}
)
// CASE - Select Tag with SQL Limit and SQL Offset
app.get(
'/get_tag_list_with_name_limit_offset', function(req, res) {
const QueryParams = new URLSearchParams()
QueryParams.set("name", "sensor")
QueryParams.set("limit", 1)
QueryParams.set("offset", 1)
var request = require('request');
var option = {
url: URL + "?" + QueryParams.toString(),
headers: {
'Content-Type': 'application/json',
'x-api-key': API_KEY
}
};
request.get(option, function(error, response, body) {
if (!error) {
res.writeHead(200);
res.end(body);
console.log(body) // {"data":{"tag":[{"name":"sensor2"}]},"status":"success"}
}
})
}
)
// CASE - Select Tag about not exist
app.get(
'/get_tag_list_with_error_name', function(req, res) {
const QueryParams = new URLSearchParams()
QueryParams.set("name", "other_name")
var request = require('request');
var option = {
url: URL + "?" + QueryParams.toString(),
headers: {
'Content-Type': 'application/json',
'x-api-key': API_KEY
}
};
request.get(option, function(error, response, body) {
if (!error) {
res.writeHead(200);
res.end(body);
console.log(body) // {"data":{"tag":[]},"status":"success"}
}
})
}
)
app.listen(8888, function() {
console.log('http://127.0.0.1:8888/get_tag_list_with_name is result for tag name that contain sensor in lake')
console.log('http://127.0.0.1:8888/get_tag_list_with_name_limit is result for tag name that contain sensor in lake with limit 1')
console.log('http://127.0.0.1:8888/get_tag_list_with_name_offset is result for tag name that contain sensor in lake with limit 1 offset 1')
console.log('http://127.0.0.1:8888/get_tag_list_with_error_name is result for tag name that contain no in lake')
})