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[英]how to use typescript typeorm in vanilla js, nest.js?
[英]Fail to connect TypeORM to Heroku Postgres database in Nest.js framework
我在嘗試將 Nest.js API 連接到數據庫時遇到問題。 當我使用本地數據庫時工作正常。
我的數據庫部署在 Heroku 服務器上,我可以使用 pgadmin 訪問它。
我正在使用帶有 .env 文件的 TypeORM 進行配置。
.env 示例:
NODE_TLS_REJECT_UNAUTHORIZED=0
TYPEORM_CONNECTION=postgres
TYPEORM_HOST=***
TYPEORM_USERNAME=***
TYPEORM_PASSWORD=***
TYPEORM_DATABASE=***
TYPEORM_PORT=5432
TYPEORM_DRIVER_EXTRA='{"ssl":true}'
TYPEORM_SYNCHRONIZE=false
TYPEORM_ENTITIES=dist/**/*.entity.js
TYPEORM_MIGRATIONS=dist/v1/migration/*.js
TYPEORM_MIGRATIONS_DIR=src/v1/migration
TYPEORM_MIGRATIONS_RUN=true
運行 npm run start:dev cmd 返回此錯誤
[Nest] 14998 - 2020-04-01 17:02:42 [TypeOrmModule] Unable to connect to the database. Retrying (1)... +712ms
QueryFailedError: syntax error at or near "`"
at new QueryFailedError (/home/primeradiant/Documents/hitema/agorise/projet/easymove-api/node_modules/typeorm/error/QueryFailedError.js:11:28)
at Query.callback (/home/primeradiant/Documents/hitema/agorise/projet/easymove-api/node_modules/typeorm/driver/postgres/PostgresQueryRunner.js:176:38)
at Query.handleError (/home/primeradiant/Documents/hitema/agorise/projet/easymove-api/node_modules/pg/lib/query.js:138:19)
at Connection.connectedErrorMessageHandler (/home/primeradiant/Documents/hitema/agorise/projet/easymove-api/node_modules/pg/lib/client.js:223:17)
at Connection.emit (events.js:210:5)
at TLSSocket.<anonymous> (/home/primeradiant/Documents/hitema/agorise/projet/easymove-api/node_modules/pg/lib/connection.js:120:12)
at TLSSocket.emit (events.js:210:5)
at addChunk (_stream_readable.js:308:12)
at readableAddChunk (_stream_readable.js:289:11)
at TLSSocket.Readable.push (_stream_readable.js:223:10)
我不知道錯誤是否是由於錯誤的憑據引起的。 有可能我沒明白一點。 謝謝您的幫助
編輯:問題來自將 TYPEORM_MIGRATIONS_RUN 設置為 true,如果我將其設置為 false,則 api 構建成功
或者來自自動遷移生成的查詢文件
import {MigrationInterface, QueryRunner} from "typeorm";
export class BaseHistory1584471283256 implements MigrationInterface {
public async up(queryRunner: QueryRunner): Promise<any> {
await queryRunner.query("DROP INDEX `IDX_97672ac88f789774dd47f7c8be` ON `users`");
await queryRunner.query("CREATE TABLE `history` (`id` int NOT NULL AUTO_INCREMENT, `price` varchar(255) NOT NULL, `departure_station` varchar(255) NOT NULL, `created_at` datetime NOT NULL DEFAULT NOW(), `userId` varchar(255) NOT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB");
await queryRunner.query("ALTER TABLE `users` DROP COLUMN `createdAt`");
await queryRunner.query("ALTER TABLE `users` DROP COLUMN `updatedAt`");
await queryRunner.query("ALTER TABLE `users` ADD `created_at` datetime(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6)");
await queryRunner.query("ALTER TABLE `users` ADD `updated_at` datetime(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6)");
await queryRunner.query("ALTER TABLE `users` ADD UNIQUE INDEX `IDX_97672ac88f789774dd47f7c8be` (`email`)");
await queryRunner.query("ALTER TABLE `history` ADD CONSTRAINT `FK_7d339708f0fa8446e3c4128dea9` FOREIGN KEY (`userId`) REFERENCES `users`(`id`) ON DELETE CASCADE");
}
public async down(queryRunner: QueryRunner): Promise<any> {
await queryRunner.query("ALTER TABLE `history` DROP FOREIGN KEY `FK_7d339708f0fa8446e3c4128dea9`");
await queryRunner.query("ALTER TABLE `users` DROP INDEX `IDX_97672ac88f789774dd47f7c8be`");
await queryRunner.query("ALTER TABLE `users` DROP COLUMN `updated_at`");
await queryRunner.query("ALTER TABLE `users` DROP COLUMN `created_at`");
await queryRunner.query("ALTER TABLE `users` ADD `updatedAt` datetime(6) NOT NULL DEFAULT 'CURRENT_TIMESTAMP(6)'");
await queryRunner.query("ALTER TABLE `users` ADD `createdAt` datetime(6) NOT NULL DEFAULT 'CURRENT_TIMESTAMP(6)'");
await queryRunner.query("DROP TABLE `history`");
await queryRunner.query("CREATE INDEX `IDX_97672ac88f789774dd47f7c8be` ON `users` (`email`)");
}
}
Postgres 無法將 ` 識別為有效的字符串字符。 相反,應該使用'
。 您可以在此處閱讀有關 postgres 字符串的更多信息
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