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ConnectionOptionsEnvReader.ts
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ConnectionOptionsEnvReader.ts
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import { DataSourceOptions } from "../../data-source/DataSourceOptions"
import { PlatformTools } from "../../platform/PlatformTools"
import { OrmUtils } from "../../util/OrmUtils"
/**
* Reads connection options from environment variables.
* Environment variables can have only a single connection.
* Its strongly required to define TYPEORM_CONNECTION env variable.
*
* @deprecated
*/
export class ConnectionOptionsEnvReader {
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Reads connection options from environment variables.
*/
async read(): Promise<DataSourceOptions[]> {
return [
{
type:
PlatformTools.getEnvVariable("TYPEORM_CONNECTION") ||
(PlatformTools.getEnvVariable("TYPEORM_URL")
? PlatformTools.getEnvVariable("TYPEORM_URL").split(
"://",
)[0]
: undefined),
url: PlatformTools.getEnvVariable("TYPEORM_URL"),
host: PlatformTools.getEnvVariable("TYPEORM_HOST"),
port: this.stringToNumber(
PlatformTools.getEnvVariable("TYPEORM_PORT"),
),
username: PlatformTools.getEnvVariable("TYPEORM_USERNAME"),
password: PlatformTools.getEnvVariable("TYPEORM_PASSWORD"),
database: PlatformTools.getEnvVariable("TYPEORM_DATABASE"),
sid: PlatformTools.getEnvVariable("TYPEORM_SID"),
schema: PlatformTools.getEnvVariable("TYPEORM_SCHEMA"),
extra: PlatformTools.getEnvVariable("TYPEORM_DRIVER_EXTRA")
? JSON.parse(
PlatformTools.getEnvVariable("TYPEORM_DRIVER_EXTRA"),
)
: undefined,
synchronize: OrmUtils.toBoolean(
PlatformTools.getEnvVariable("TYPEORM_SYNCHRONIZE"),
),
dropSchema: OrmUtils.toBoolean(
PlatformTools.getEnvVariable("TYPEORM_DROP_SCHEMA"),
),
migrationsRun: OrmUtils.toBoolean(
PlatformTools.getEnvVariable("TYPEORM_MIGRATIONS_RUN"),
),
entities: this.stringToArray(
PlatformTools.getEnvVariable("TYPEORM_ENTITIES"),
),
migrations: this.stringToArray(
PlatformTools.getEnvVariable("TYPEORM_MIGRATIONS"),
),
migrationsTableName: PlatformTools.getEnvVariable(
"TYPEORM_MIGRATIONS_TABLE_NAME",
),
metadataTableName: PlatformTools.getEnvVariable(
"TYPEORM_METADATA_TABLE_NAME",
),
subscribers: this.stringToArray(
PlatformTools.getEnvVariable("TYPEORM_SUBSCRIBERS"),
),
logging: this.transformLogging(
PlatformTools.getEnvVariable("TYPEORM_LOGGING"),
),
logger: PlatformTools.getEnvVariable("TYPEORM_LOGGER"),
entityPrefix: PlatformTools.getEnvVariable(
"TYPEORM_ENTITY_PREFIX",
),
maxQueryExecutionTime: PlatformTools.getEnvVariable(
"TYPEORM_MAX_QUERY_EXECUTION_TIME",
),
debug: PlatformTools.getEnvVariable("TYPEORM_DEBUG"),
cache: this.transformCaching(),
uuidExtension: PlatformTools.getEnvVariable(
"TYPEORM_UUID_EXTENSION",
),
},
]
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Transforms logging string into real logging value connection requires.
*/
protected transformLogging(logging: string): any {
if (logging === "true" || logging === "TRUE" || logging === "1")
return true
if (logging === "all") return "all"
return this.stringToArray(logging)
}
/**
* Transforms caching option into real caching value option requires.
*/
protected transformCaching(): boolean | object | undefined {
const caching = PlatformTools.getEnvVariable("TYPEORM_CACHE")
if (caching === "true" || caching === "TRUE" || caching === "1")
return true
if (caching === "false" || caching === "FALSE" || caching === "0")
return false
if (
caching === "redis" ||
caching === "ioredis" ||
caching === "database"
)
return {
type: caching,
options: PlatformTools.getEnvVariable("TYPEORM_CACHE_OPTIONS")
? JSON.parse(
PlatformTools.getEnvVariable("TYPEORM_CACHE_OPTIONS"),
)
: undefined,
alwaysEnabled: PlatformTools.getEnvVariable(
"TYPEORM_CACHE_ALWAYS_ENABLED",
),
duration: parseInt(
PlatformTools.getEnvVariable("TYPEORM_CACHE_DURATION"),
),
}
return undefined
}
/**
* Converts a string which contains multiple elements split by comma into a string array of strings.
*/
protected stringToArray(variable?: string) {
if (!variable) return []
return variable.split(",").map((str) => str.trim())
}
/**
* Converts a string which contains a number into a javascript number
*/
private stringToNumber(value: any): number | undefined {
if (!value) {
return undefined
}
return parseInt(value)
}
}