Create Lake

실제 개발자들이 default 가 아닌 확장 컬럼을 사용할 수 도 있을 것 같습니다.

그래서, 별도로 본인들의 lake를 구성할 수 있는 여지를 줘야합니다.

이 API는 새 Datalake를 생성한다. Lake를 생성할 때 기본 데이터인 tag_name, time, value외의 추가 칼럼을 지정할 수 있다. 한번 생성한 lake의 추가 칼럼값들을 변경할 수 없으므로 lake를 생성할때 주의를 기울여야 한다. 데이터레이크를 생성하면 추가 비용이 발생한다. 자세한 내용은 링크에 기술되어 있다.

HTTP Request

POST https://${CloudVendor}.${CountryCode}.machlake.com/lakes
Content-Type: application/json; charset=utf8
x-api-key: {API Key}
  
{
    "lake_info"    : {
        "lake_name"    : "{lake_name}",
        "lake_plan"    : "{lake_plan}",
        "owner"        : "{owner}",
        "region"       : "{region}",
        "timezone"     : "{timezone}",
        "storage_size" : "{storage size}"
    },
    "tag_schema"   : [
       {
        "col_name"   : "{column name}",
        "col_type"   : "{column type}",
        "col_length" : "{column length}"
       },
       ......
    ],
    "value_schema" : [
       {
        "col_name"   : "{column name}",
        "col_type"   : "{column type}",
        "col_length" : "{column length}"
       },
       ......
    ]
}

Parameters

Prerequisites
Key	Type	Description
lake_name	string	lake name
lake_plan	string	tiny / basic / business/ enterprise
owner	string	Lake's Owner (When omitted, the user who calls the API)
region	string	AWS region name
timezone	string	Timezone name
storage_size	int	Storage size
tag_schema	JSON	Columns for this lake's Tag meta. Each column have the three sub component: col_name, col_type, col_length. col_name : column name col_type : column type “short” : fixed integer value (2 byte length) “int” : fixed integer value (4 byte) “long” : fixed integer value (8 byte) “float” : floating point value (4 byte) “double” : floating point value(8 byte) “datetime” : time data to nano precision (8 byte) “varchar” : string type col_length : if varchar type, assign the max length of column {'col_name': "name", 'col_type': "varchar", 'col_length': 40} The data type of the first column , “col_type” must be “varchar”. But, additional meta column can have any data type.
value_schema	JSON	Columns for this lake’s values. In this field, you have to assign two essential columns for time and default value. The first column datatype must be “datetime”. The second column datatype must be “double” keeping numeric data as default. {'col_name': "time", 'col_type': "datetime"}, {'col_name': "value",'col_type': "double"} However, beginning with the third column information, you can have the option of specifying additional column information.

Request Example

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POST https://aws1.us.machlake.com/lakes
Content-Type: application/json; charset=utf8
x-api-key: {API Key}
  
{
    "lake_info"    : {
        "lake_name"    : "My Lake",
        "lake_plan"    : "basic",
        "owner"        : "user01",
        "region"       : "us-east-1",
        "timezone"     : "America/Los_Angeles",
        "storage_size" : 60
    },
    "tag_schema"   : [
       {
        "col_name"   : "name",
        "col_type"   : "varchar",
        "col_length" : 40
       }
    ],
    "value_schema" : [
       {
        "col_name"   : "time",
        "col_type"   : "datetime"
       },
       {
        "col_name"   : "value",
        "col_type"   : "double"
       }
    ]
}

Response Example

Status 200

{
    "status": true,
    "data" : {lake id}
}

Sample Code

window(batch)

github

chcp 65001 
:: Text Encoding to UTF-8 in CMD
:: Example For Create Lake API by using curl in window script
:: written by yeony kim

set API_KEY=YOUR_API_TOKEN

set CONTENT_HEADER="Content-Type: application/json"
set API_HEADER="x-api-key: %API_KEY%"

set URL=https://api.machlake.com/lakes

:: ------------------------------------------------------------------------------------------------- ::

:: CASE - create LAKE

curl -k -X POST %URL% -H %CONTENT_HEADER% -H %API_HEADER% --data "{\"lake_id\":\"\",\"lake_info\":{\"lake_name\":\"sample_lake\",\"lake_plan\":\"basic\",\"owner\":\"YOUR_MACHLAKE_ID\",\"region\":\"ap-northeast-2\",\"timezone\":\"Asia/Seoul\",\"storage_size\":20},\"tag_schema\":[{\"col_name\":\"name\",\"col_type\":\"varchar\",\"col_length\":40}],\"value_schema\":[{\"col_name\":\"time\",\"col_type\":\"datetime\"},{\"col_name\":\"value\",\"col_type\":\"double\"}]}"

:: Return Format
:: {"data":"YOUR_LAKE_ID","status":"success"}

linux(shell)

github

# Text Encoding to UTF-8 in CMD
# Example For Create Lake API by using curl in shell script
# written by yeony kim

API_KEY=YOUR_API_TOKEN

CONTENT_HEADER=Content-Type:application/json
API_HEADER=x-api-key:$API_KEY

URL=https://api.machlake.com/lakes

# ------------------------------------------------------------------------------------------------- #

# CASE - create LAKE

curl -k -X POST $URL -H $CONTENT_HEADER -H $API_HEADER --data "{\"lake_id\":\"\",\"lake_info\":{\"lake_name\":\"sample_lake\",\"lake_plan\":\"basic\",\"owner\":\"YOUR_MACHLAKE_ID\",\"region\":\"ap-northeast-2\",\"timezone\":\"Asia/Seoul\",\"storage_size\":20},\"tag_schema\":[{\"col_name\":\"name\",\"col_type\":\"varchar\",\"col_length\":40}],\"value_schema\":[{\"col_name\":\"time\",\"col_type\":\"datetime\"},{\"col_name\":\"value\",\"col_type\":\"double\"}]}"

# Return Format
# {"data":"YOUR_LAKE_ID","status":"success"}

# ------------------------------------------------------------------------------------------------- #

javascript

github

// Example For Create LAKE API by using request in nodejs
// written by yeony kim

process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";

const express = require('express');
const app = express();
const API_KEY = "YOUR_API_TOKEN";
const URL = "https://api.machlake.com/lakes";

// CASE - create LAKE

app.get(
    '/create_lake', function(req, res) {
        const Data = {
            lake_id:"",
            lake_info:{
                lake_name:"sample_lake",
                lake_plan:"basic",
                owner:"YOUR_MACHLAKE_ID",
                region:"ap-northeast-2",
                timezone:"Asia/Seoul",
                storage_size:20
            },
            tag_schema:[
                {col_name:"name",col_type:"varchar",col_length:40}
            ],
            value_schema:[
                {col_name:"time",col_type:"datetime"},
                {col_name:"value",col_type:"double"}
            ]
        }
        var request = require('request');
        var option = {
            url: URL,
            headers: {
                'Content-Type': 'application/json',
                'x-api-key': API_KEY
            },
            body: JSON.stringify(Data)
        };
        request.post( option, function(error, response, body) {
            if (!error) {
                res.writeHead(200);
                res.end(body);
                console.log(body) // {"data":"YOUR_LAKE_ID","status":"success"}
            } else {
                console.log(error)
            }
        })
    }
)

app.listen(8888, function() {
    console.log('http://127.0.0.1:8888/create_lake is result for create LAKE')
})

python

github

"""
Example For Create LAKE API by using request in python
written by yeony kim
"""

import requests

API_KEY = "YOUR_API_TOKEN"
URL = f"https://api.machlake.com/lakes"

# CASE - CASE - create LAKE

headers = {
    'Content-Type': 'application/json',
    'x-api-key': API_KEY
}

params = {
    'lake_id': "",
    'lake_info': {
        'lake_name': "sample_lake",
        'lake_plan': "basic",
        'owner': "YOUR_MACHLAKE_ID",
        'region': "ap-northeast-2",
        'timezone': "Asia/Seoul",
        'storage_size': 20
    },
    'tag_schema': [
        {'col_name': "name", 'col_type': "varchar", 'col_length': 40}
    ],
    'value_schema': [
        {'col_name': "time", 'col_type': "datetime"},
        {'col_name': "value", 'col_type': "double"}
    ]
}

response = requests.post(URL, headers=headers, json=params, verify=False)
print(response.content.decode('utf-8'))  # {"data":"YOUR_LAKE_ID","status":"success"}