2.0.10

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pushrocks/smartclickhouse",
-  "version": "2.0.4",
+  "version": "2.0.10",
   "private": false,
   "description": "an odm for talking to clickhouse",
   "main": "dist_ts/index.js",
@@ -19,14 +19,16 @@
     "@gitzone/tsbundle": "^2.0.6",
     "@gitzone/tstest": "^1.0.72",
     "@pushrocks/tapbundle": "^5.0.4",
-    "@types/node": "^18.6.1",
+    "@types/node": "^18.6.2",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.15.0"
   },
   "dependencies": {
-    "@depyronick/clickhouse-client": "^1.0.14",
+    "@pushrocks/smartdelay": "^2.0.13",
     "@pushrocks/smartobject": "^1.0.10",
-    "@pushrocks/smarturl": "^3.0.1"
+    "@pushrocks/smartpromise": "^3.1.7",
+    "@pushrocks/smarturl": "^3.0.2",
+    "@pushrocks/webrequest": "^3.0.9"
   },
   "browserslist": [
     "last 1 chrome versions"

test/test.nonci.ts

@@ -5,10 +5,9 @@ let testClickhouseDb: smartclickhouse.SmartClickHouseDb;
 
 tap.test('first test', async () => {
   testClickhouseDb = new smartclickhouse.SmartClickHouseDb({
-    host: 'localhost',
+    url: 'http://localhost:8123',
     database: 'test2',
-    port: 8123,
-    protocol: 'http',
+    unref: true,
   });
 });
 
@@ -16,10 +15,10 @@ tap.test('should start the clickhouse db', async () => {
   await testClickhouseDb.start(true);
 });
 
-tap.test('should create a timedatatable', async () => {
+tap.test('should create a timedatatable', async (toolsArg) => {
   const table = await testClickhouseDb.getTable('analytics');
   let i = 0;
-  while(i < 10) {
+  while(i < 5000) {
     await table.addData({
       timestamp: Date.now(),
       message: `hello this is a message ${i}`,
@@ -30,6 +29,8 @@ tap.test('should create a timedatatable', async () => {
       }
     });
     i++;
+    console.log(`logged ${i} of 5000 lines.`);
+    await toolsArg.delayFor(1);
   }
 });
 

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@pushrocks/smartclickhouse',
-  version: '2.0.4',
+  version: '2.0.10',
   description: 'an odm for talking to clickhouse'
 }

ts/smartclickhouse.classes.clickhousedb.ts

@@ -0,0 +1,5 @@
+import * as plugins from './smartclickhouse.plugins.js';
+
+export class ClickhouseDb {
+  
+}

ts/smartclickhouse.classes.httpclient.ts

@@ -0,0 +1,93 @@
+import * as plugins from './smartclickhouse.plugins.js';
+
+export interface IClickhouseHttpClientOptions {
+  username?: string;
+  password?: string;
+  url: string;
+}
+
+export class ClickhouseHttpClient {
+  // STATIC
+  public static async createAndStart(optionsArg: IClickhouseHttpClientOptions) {
+    const clickhouseHttpInstance = new ClickhouseHttpClient(optionsArg);
+    await clickhouseHttpInstance.start();
+    return clickhouseHttpInstance;
+  }
+
+  // INSTANCE
+  public options: IClickhouseHttpClientOptions;
+  public webrequestInstance = new plugins.webrequest.WebRequest({
+    logging: false
+  });
+  public computedProperties: {
+    connectionUrl: string;
+    parsedUrl: plugins.smarturl.Smarturl;
+  } = {
+    connectionUrl: null,
+    parsedUrl: null,
+  };
+  constructor(optionsArg: IClickhouseHttpClientOptions) {
+    this.options = optionsArg;
+  }
+
+  public async start() {
+    this.computedProperties.parsedUrl = plugins.smarturl.Smarturl.createFromUrl(this.options.url);
+    console.log(this.computedProperties.parsedUrl);
+    this.computedProperties.connectionUrl = this.computedProperties.parsedUrl.toString();
+  }
+
+  public async ping() {
+
+    const ping = await this.webrequestInstance.request(this.computedProperties.connectionUrl.toString(), {
+      method: 'GET',
+      timeoutMs: 1000,
+    });
+    return ping.status === 200 ? true : false;
+  }
+
+  public async queryPromise(queryArg: string) {
+    const returnArray = [];
+    const response = await this.webrequestInstance.request(`${this.computedProperties.connectionUrl}?query=${encodeURIComponent(queryArg)}`, {
+      method: 'POST',
+      headers: this.getHeaders(),
+    });
+    // console.log('===================');
+    // console.log(this.computedProperties.connectionUrl);
+    // console.log(queryArg);
+    // console.log((await response.clone().text()).split(/\r?\n/))
+    if (response.headers.get('X-ClickHouse-Format') === 'JSONEachRow') {
+      const jsonList = await response.text();
+      const jsonArray = jsonList.split('\n');
+      for (const jsonArg of jsonArray) {
+        if (!jsonArg) {
+          continue;
+        }
+        returnArray.push(JSON.parse(jsonArg));
+      }
+    } else {
+    }
+    return returnArray
+
+  }
+
+  public async insertPromise(databaseArg: string, tableArg: string, documents: any[]) {
+    const queryArg = `INSERT INTO ${databaseArg}.${tableArg} FORMAT JSONEachRow`;
+    const response = await this.webrequestInstance.request(`${this.computedProperties.connectionUrl}?query=${encodeURIComponent(queryArg)}`, {
+      method: 'POST',
+      body: documents.map(docArg => JSON.stringify(docArg)).join('\n'),
+      headers: this.getHeaders()
+    });
+    return response;
+  }
+
+  private getHeaders() {
+    const headers: {[key: string]: string} = {}
+    if (this.options.username) {
+      headers['X-ClickHouse-User'] = this.options.username;
+    }
+    if (this.options.password) {
+      headers['X-ClickHouse-Key'] = this.options.password;
+    }
+    return headers;
+  }
+}

ts/smartclickhouse.classes.smartclickhouse.ts

@@ -1,15 +1,23 @@
 import * as plugins from './smartclickhouse.plugins.js';
 import { TimeDataTable } from './smartclickhouse.classes.timedatatable.js';
+import { ClickhouseHttpClient } from './smartclickhouse.classes.httpclient.js';
 
 export interface IClickhouseConstructorOptions {
   url: string;
   database: string;
+  username?: string;
   password?: string;
+  /**
+   * allow services to exit when waiting for clickhouse startup
+   * this allows to leave the lifecycle flow to other processes
+   * like a listening server.
+   */
+  unref?: boolean;
 }
 
 export class SmartClickHouseDb {
   public options: IClickhouseConstructorOptions;
-  public clickhouseClient: plugins.clickhouse.ClickHouseClient;
+  public clickhouseClient: ClickhouseHttpClient;
 
   constructor(optionsArg: IClickhouseConstructorOptions) {
     this.options = optionsArg;
@@ -20,35 +28,31 @@ export class SmartClickHouseDb {
    */
   public async start(dropOld = false) {
     console.log(`Connecting to default database first.`);
-    const defaultOptions: {[keyArg: string]: string} = {};
-    // the protocol, url and host
-    const parsedUrl = plugins.smarturl.Smarturl.createFromUrl(this.options.url);
-    parsedUrl.protocol === 'https' ? defaultOptions.protocol = plugins.clickhouse.ClickHouseConnectionProtocol.HTTPS : null;
-    parsedUrl.protocol === 'http' ? defaultOptions.protocol = plugins.clickhouse.ClickHouseConnectionProtocol.HTTP : null;
-    defaultOptions.host = parsedUrl.hostname;
-    defaultOptions.port = parsedUrl.port;
-    // the database
-    defaultOptions.database = this.options.database;
-    // the password
-    this.options.password ? defaultOptions.password = this.options.password : null;
     // lets connect
-    const defaultClient = new plugins.clickhouse.ClickHouseClient({
-      ...defaultOptions,
-      database: 'default',
-    });
+    this.clickhouseClient = await ClickhouseHttpClient.createAndStart(this.options);
+    await this.pingDatabaseUntilAvailable();
     console.log(`Create database ${this.options.database}, if it does not exist...`);
-    if (dropOld) {
-      await defaultClient.queryPromise(`DROP DATABASE IF EXISTS ${this.options.database}`);
+    await this.createDatabase(dropOld);
   }
-    await defaultClient.queryPromise(`CREATE DATABASE IF NOT EXISTS ${this.options.database}`);
 
-    console.log(`Ensured database. Now connecting to wanted database: ${this.options.database}`);
-    this.clickhouseClient = new plugins.clickhouse.ClickHouseClient({
-      ...defaultOptions
+  public async createDatabase(dropOld: boolean = false) {
+    if (dropOld) {
+      await this.clickhouseClient.queryPromise(`DROP DATABASE IF EXISTS ${this.options.database}`);
+    }
+    await this.clickhouseClient.queryPromise(`CREATE DATABASE IF NOT EXISTS ${this.options.database}`);
+  }
+
+  public async pingDatabaseUntilAvailable() {
+    let available = false;
+    while(!available) {
+      available = await this.clickhouseClient.ping().catch(err => {
+        return false;
       });
-    console.log(`trying to ping database...`);
-    const result = await this.clickhouseClient.ping();
-    console.log(`Ping successfull?: ${result}`);
+      if (!available) {
+        console.log(`NOT OK: tried pinging ${this.options.url}... Trying again in 5 seconds.`);
+        await plugins.smartdelay.delayFor(5000, null, this.options.unref);
+      }
+    }
   }
 
   /**

ts/smartclickhouse.classes.timedatatable.ts

@@ -38,34 +38,13 @@ export class TimeDataTable {
       retainDataForDays: 30
     });
 
-    // create table in clickhouse
-    await smartClickHouseDbRefArg.clickhouseClient
-      .queryPromise(`
-        CREATE TABLE IF NOT EXISTS ${newTable.options.tableName} (
-          timestamp DateTime64(3, 'Europe/Berlin'),
-          message String
-        ) ENGINE=MergeTree() ORDER BY timestamp`);
-    
-    // lets adjust the TTL
-    await smartClickHouseDbRefArg.clickhouseClient
-      .queryPromise(`
-        ALTER TABLE ${newTable.options.tableName} MODIFY TTL toDateTime(timestamp) + INTERVAL ${newTable.options.retainDataForDays} DAY
-      `);
-
-    await newTable.updateColumns();
-    console.log(`=======================`)
-    console.log(
-      `table with name "${newTable.options.tableName}" in databse ${newTable.smartClickHouseDbRef.options.database} has the following columns:`
-    );
-    for (const column of newTable.columns) {
-      console.log(`>> ${column.name}: ${column.type}`);
-    }
-    console.log('^^^^^^^^^^^^^^\n');
+    await newTable.setup();
 
     return newTable;
   }
 
   // INSTANCE
+  public healingDeferred: plugins.smartpromise.Deferred<any>;
   public smartClickHouseDbRef: SmartClickHouseDb;
   public options: ITimeDataTableOptions;
 
@@ -74,6 +53,32 @@ export class TimeDataTable {
     this.options = optionsArg;
   }
 
+  public async setup() {
+    // create table in clickhouse
+    await this.smartClickHouseDbRef.clickhouseClient
+      .queryPromise(`
+        CREATE TABLE IF NOT EXISTS ${this.smartClickHouseDbRef.options.database}.${this.options.tableName} (
+          timestamp DateTime64(3, 'Europe/Berlin'),
+          message String
+        ) ENGINE=MergeTree() ORDER BY timestamp`);
+    
+    // lets adjust the TTL
+    await this.smartClickHouseDbRef.clickhouseClient
+      .queryPromise(`
+        ALTER TABLE ${this.smartClickHouseDbRef.options.database}.${this.options.tableName} MODIFY TTL toDateTime(timestamp) + INTERVAL ${this.options.retainDataForDays} DAY
+      `);
+
+    await this.updateColumns();
+    console.log(`=======================`)
+    console.log(
+      `table with name "${this.options.tableName}" in database ${this.smartClickHouseDbRef.options.database} has the following columns:`
+    );
+    for (const column of this.columns) {
+      console.log(`>> ${column.name}: ${column.type}`);
+    }
+    console.log('^^^^^^^^^^^^^^\n');
+  }
+
   public columns: IColumnInfo[] = [];
 
   /**
@@ -83,7 +88,7 @@ export class TimeDataTable {
     this.columns = await this.smartClickHouseDbRef.clickhouseClient.queryPromise(`
       SELECT * FROM system.columns
       WHERE database LIKE '${this.smartClickHouseDbRef.options.database}'
-      AND table LIKE '${this.options.tableName}'
+      AND table LIKE '${this.options.tableName}' FORMAT JSONEachRow
     `);
     return this.columns;
   }
@@ -92,6 +97,10 @@ export class TimeDataTable {
    * stores a json and tries to map it to the nested syntax
    */
   public async addData(dataArg: any) {
+    if (this.healingDeferred) {
+      return;
+    }
+
     // the storageJson
     let storageJson: { [key: string]: any } = {};
     
@@ -128,7 +137,7 @@ export class TimeDataTable {
           await checkPath(pathArg, typeArg, true);
           return;
         }
-        const alterString = `ALTER TABLE ${this.options.tableName} ADD COLUMN ${pathArg} ${typeArg} FIRST`
+        const alterString = `ALTER TABLE ${this.smartClickHouseDbRef.options.database}.${this.options.tableName} ADD COLUMN ${pathArg} ${typeArg} FIRST`
         try {
           await this.smartClickHouseDbRef.clickhouseClient.queryPromise(`
           ${alterString}
@@ -162,9 +171,21 @@ export class TimeDataTable {
       storageJson[key] = value;
     }
 
-    const result = await this.smartClickHouseDbRef.clickhouseClient.insertPromise(this.options.tableName, [
+    const result = await this.smartClickHouseDbRef.clickhouseClient.insertPromise(this.smartClickHouseDbRef.options.database, this.options.tableName, [
       storageJson,
-    ]);
+    ]).catch(async () => {
+      if (this.healingDeferred) {
+        return;
+      }
+      this.healingDeferred = plugins.smartpromise.defer();
+      console.log(`Ran into an error. Trying to set up things properly again.`);
+      await this.smartClickHouseDbRef.pingDatabaseUntilAvailable();
+      await this.smartClickHouseDbRef.createDatabase();
+      await this.setup();
+      this.columns = [];
+      this.healingDeferred.resolve();
+      this.healingDeferred = null;
+    });
     return result;
   }
 }

ts/smartclickhouse.plugins.ts

@@ -1,13 +1,14 @@
 // @pushrocks scope
+import * as smartdelay from '@pushrocks/smartdelay';
 import * as smartobject from '@pushrocks/smartobject';
+import * as smartpromise from '@pushrocks/smartpromise';
 import * as smarturl from '@pushrocks/smarturl';
+import * as webrequest from '@pushrocks/webrequest';
 
 export {
+  smartdelay,
   smartobject,
-  smarturl
+  smartpromise,
+  smarturl,
+  webrequest,
 }
-
-// thirdparty
-import * as clickhouse from '@depyronick/clickhouse-client';
-
-export { clickhouse };