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Merge pull request #172 from Canner/feature/canner-enterprise-connector
Feature: Canner enterprise connector
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{ | ||
"extends": ["../../.eslintrc.json"], | ||
"ignorePatterns": ["!**/*"], | ||
"overrides": [ | ||
{ | ||
"files": ["*.ts", "*.tsx", "*.js", "*.jsx"], | ||
"rules": {} | ||
}, | ||
{ | ||
"files": ["*.ts", "*.tsx"], | ||
"rules": {} | ||
}, | ||
{ | ||
"files": ["*.js", "*.jsx"], | ||
"rules": {} | ||
} | ||
] | ||
} |
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# extension-driver-canner | ||
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Connect to [canner enterprise](https://docs.cannerdata.com/product/api_sdk/pg/pg_overview) through PostgreSQL Wire Protocol | ||
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## Install | ||
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1. Install package | ||
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```sql | ||
npm i @vulcan-sql/extension-driver-canner | ||
``` | ||
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2. Update `vulcan.yaml`, enable the extension. | ||
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```yaml | ||
extensions: | ||
canner: '@vulcan-sql/extension-driver-canner' | ||
``` | ||
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3. Create a new profile in `profiles.yaml` or in your profiles' paths. | ||
```yaml | ||
- name: canner # profile name | ||
type: canner | ||
connection: | ||
# Optional: Server host. | ||
host: string | ||
# Optional: The user to connect to canner enterprise. Default canner | ||
user: string | ||
# Optional: Password to connect to canner enterprise. should be the user PAT in canner enterprise | ||
password: string | ||
# Optional: sql name of the workspace. | ||
database: string | ||
# Optional: canner enterprise PostgreSQL wire protocol port | ||
port: 7432 | ||
# Optional: The max rows we should fetch once. | ||
chunkSize: 100 | ||
# Optional: Maximum number of clients the pool should contain. | ||
max: 10 | ||
# Optional: Number of milliseconds before a statement in query will time out, default is no timeout | ||
statement_timeout: 0 | ||
# Optional: Passed directly to node.TLSSocket, supports all tls.connect options | ||
ssl: false | ||
# Optional: Number of milliseconds before a query call will timeout, default is no timeout | ||
query_timeout: 0 | ||
# Optional: The name of the application that created this Client instance | ||
application_name: string | ||
# Optional: Number of milliseconds to wait for connection, default is no timeout | ||
connectionTimeoutMillis: 0 | ||
# Optional: Number of milliseconds before terminating any session with an open idle transaction, default is no timeout | ||
idle_in_transaction_session_timeout: 0 | ||
# Optional: Number of milliseconds a client must sit idle in the pool and not be checked out before it is disconnected from the backend and discarded. | ||
idleTimeoutMillis: 10000 | ||
``` |
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module.exports = { | ||
displayName: 'extension-driver-canner', | ||
preset: '../../jest.preset.ts', | ||
globals: { | ||
'ts-jest': { | ||
tsconfig: '<rootDir>/tsconfig.spec.json', | ||
}, | ||
}, | ||
transform: { | ||
'^.+\\.[tj]s$': 'ts-jest', | ||
}, | ||
moduleFileExtensions: ['ts', 'js', 'html', 'node'], | ||
coverageDirectory: '../../coverage/packages/extension-driver-canner', | ||
testEnvironment: 'node', | ||
}; |
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{ | ||
"name": "@vulcan-sql/extension-driver-canner", | ||
"description": "Canner Enterprise driver for Vulcan SQL", | ||
"version": "0.4.0", | ||
"type": "commonjs", | ||
"publishConfig": { | ||
"access": "public" | ||
}, | ||
"keywords": [ | ||
"vulcan", | ||
"vulcan-sql", | ||
"data", | ||
"sql", | ||
"database", | ||
"data-warehouse", | ||
"data-lake", | ||
"api-builder", | ||
"postgres", | ||
"pg" | ||
], | ||
"repository": { | ||
"type": "git", | ||
"url": "https://github.com/Canner/vulcan.git" | ||
}, | ||
"license": "MIT", | ||
"peerDependencies": { | ||
"@vulcan-sql/core": "~0.4.0-0" | ||
} | ||
} |
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{ | ||
"root": "packages/extension-driver-canner", | ||
"sourceRoot": "packages/extension-driver-canner/src", | ||
"targets": { | ||
"build": { | ||
"executor": "@nrwl/workspace:run-commands", | ||
"options": { | ||
"command": "yarn ts-node ./tools/scripts/replaceAlias.ts extension-driver-canner" | ||
}, | ||
"dependsOn": [ | ||
{ | ||
"projects": "self", | ||
"target": "tsc" | ||
} | ||
] | ||
}, | ||
"tsc": { | ||
"executor": "@nrwl/js:tsc", | ||
"outputs": ["{options.outputPath}"], | ||
"options": { | ||
"outputPath": "dist/packages/extension-driver-canner", | ||
"main": "packages/extension-driver-canner/src/index.ts", | ||
"tsConfig": "packages/extension-driver-canner/tsconfig.lib.json", | ||
"assets": ["packages/extension-driver-canner/*.md"], | ||
"buildableProjectDepsInPackageJsonType": "dependencies" | ||
}, | ||
"dependsOn": [ | ||
{ | ||
"projects": "dependencies", | ||
"target": "build" | ||
} | ||
] | ||
}, | ||
"lint": { | ||
"executor": "@nrwl/linter:eslint", | ||
"outputs": ["{options.outputFile}"], | ||
"options": { | ||
"lintFilePatterns": ["packages/extension-driver-canner/**/*.ts"] | ||
} | ||
}, | ||
"test": { | ||
"executor": "@nrwl/jest:jest", | ||
"outputs": ["coverage/packages/extension-driver-canner"], | ||
"options": { | ||
"jestConfig": "packages/extension-driver-canner/jest.config.ts", | ||
"passWithNoTests": true | ||
} | ||
}, | ||
"publish": { | ||
"executor": "@nrwl/workspace:run-commands", | ||
"options": { | ||
"command": "node ../../../tools/scripts/publish.mjs {args.tag} {args.version}", | ||
"cwd": "dist/packages/extension-driver-canner" | ||
}, | ||
"dependsOn": [ | ||
{ | ||
"projects": "self", | ||
"target": "build" | ||
} | ||
] | ||
} | ||
}, | ||
"tags": [] | ||
} |
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export * from './lib/cannerDataSource'; | ||
import { CannerDataSource } from './lib/cannerDataSource'; | ||
export default [CannerDataSource]; |
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packages/extension-driver-canner/src/lib/cannerAdapter.ts
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import axios from 'axios'; | ||
import { PGOptions } from './cannerDataSource'; | ||
import { ConnectionOptions } from 'tls'; | ||
import { createEnvConfig } from './config'; | ||
import { InternalError, getLogger } from '@vulcan-sql/core'; | ||
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const envConfig = createEnvConfig(); | ||
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export class CannerAdapter { | ||
public readonly host: string; | ||
public readonly workspaceSqlName: string; | ||
public readonly PAT: string | (() => string | Promise<string>); | ||
public readonly ssl: boolean | ConnectionOptions; | ||
private baseUrl: string | undefined; | ||
private logger = getLogger({ scopeName: 'CORE' }); | ||
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constructor(options?: PGOptions) { | ||
if (!options) { | ||
throw new Error(`connection options is required`); | ||
} | ||
const { host, database, password, ssl = false } = options; | ||
if (!host || !database || !password) { | ||
throw new Error(`host, database and password are required`); | ||
} | ||
this.host = host; | ||
this.workspaceSqlName = database; | ||
this.PAT = password; | ||
this.ssl = ssl; | ||
} | ||
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// When querying Canner enterprise, the Canner enterprise will save the query result as parquet files, | ||
// and store them in S3. This method will return the S3 urls of the query result. | ||
// For more Canner API ref: https://docs.cannerdata.com/reference/restful | ||
public async createAsyncQueryResultUrls(sql: string): Promise<string[]> { | ||
this.logger.debug(`Create async request to Canner.`); | ||
let data = await this.getWorkspaceRequestData('post', '/v2/async-queries', { | ||
data: { | ||
sql, | ||
timeout: 600, | ||
noLimit: true, | ||
}, | ||
}); | ||
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const { id: requestId } = data; | ||
this.logger.debug(`Wait Async request to finished.`); | ||
await this.waitAsyncQueryToFinish(requestId); | ||
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// get the query result after the query finished | ||
data = await this.getRequestInfo(requestId); | ||
if (data.error?.message) { | ||
throw new Error(data.error.message); | ||
} | ||
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this.logger.debug(`Get Query result urls.`); | ||
const urls = await this.getAsyncQueryResultUrls(requestId); | ||
this.logger.debug(`Query result urls: \n${urls.join('\n')}`); | ||
return urls; | ||
} | ||
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private async getWorkspaceRequestData( | ||
method: string, | ||
urlPath: string, | ||
options?: Record<string, any> | ||
) { | ||
await this.prepare(); | ||
try { | ||
const response = await axios({ | ||
headers: { | ||
Authorization: `Token ${this.PAT}`, | ||
}, | ||
params: { | ||
workspaceSqlName: this.workspaceSqlName, | ||
}, | ||
url: `${this.baseUrl}${urlPath}`, | ||
method, | ||
...options, | ||
}); | ||
return response.data; | ||
} catch (error: any) { | ||
const message = error.response | ||
? `response status: ${error.response.status}, response data: ${error.response.data}` | ||
: `remote server does not response. request ${error.toJSON()}}`; | ||
throw new InternalError( | ||
`Failed to get workspace request "${urlPath}" data, ${message}` | ||
); | ||
} | ||
} | ||
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private async prepare() { | ||
if (this.baseUrl) { | ||
return; | ||
} | ||
const response = await axios({ | ||
method: 'get', | ||
maxBodyLength: Infinity, | ||
url: `${this.getCannerUrl()}/cluster-info`, | ||
headers: {}, | ||
}); | ||
const { restfulApiBaseEndpoint } = response.data; | ||
if (!restfulApiBaseEndpoint) { | ||
throw new Error( | ||
`The restful API base endpoint is not found, please check "restfulApiBaseEndpoint" field from "/cluster-info" endpoint of Canner Enterprise` | ||
); | ||
} | ||
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this.baseUrl = restfulApiBaseEndpoint; | ||
} | ||
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private getCannerUrl() { | ||
if (envConfig.isOnKubernetes) { | ||
// use env to get the endpoint in k8s | ||
return `http://${envConfig.webServiceHost}`; | ||
} else { | ||
// otherwise use the host user provided | ||
const protocol = this.ssl ? 'https' : 'http'; | ||
return `${protocol}://${this.host}`; | ||
} | ||
} | ||
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private async waitAsyncQueryToFinish(requestId: string) { | ||
let data = await this.getRequestInfo(requestId); | ||
// FINISHED & FAILED are the end state of a async request, and the result urls will be generated only after the request is finished. | ||
while (!['FINISHED', 'FAILED'].includes(data.status)) { | ||
await new Promise((resolve) => setTimeout(resolve, 1000)); | ||
data = await this.getRequestInfo(requestId); | ||
} | ||
} | ||
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private async getRequestInfo(requestId: string) { | ||
return await this.getWorkspaceRequestData( | ||
'get', | ||
`/v2/async-queries/${requestId}` | ||
); | ||
} | ||
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private async getAsyncQueryResultUrls(requestId: string): Promise<string[]> { | ||
const data = await this.getWorkspaceRequestData( | ||
'get', | ||
`/v2/async-queries/${requestId}/result/urls` | ||
); | ||
return data.urls || []; | ||
} | ||
} |
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