TypeORM - run specific migration - typeorm

Question

I know typeorm migration:run to run all migration files, but some time I want run a file like insert file, or a modified file. But i can't find any doc for that. How to do that thanks.

Answer 1

This is not possible. You can see the docs of the migration with
typeorm migration:run -h
During development you can locally change your connection settings, e.g. change the path to the migration files in your ormconfig.json to match only your file.
"migrations": [
"src/db/migration/**/yourmigration.ts"
]

Answer 2

If you want to seed the database with data you shouldn't use migrations.
Migrations' purpose is to create the database's structure, This is why migrations are executed serially, therefore running a single migration non-serially misses the point.
For database seeding with typeorm you can use typeorm cli query, you can create a script that read the SQL from a file.
For example in a node.js app & bash:
package.json:
"scripts": {
...,
"typeorm": "npx ts-node -r tsconfig-paths/register ./node_modules/typeorm/cli --config ormconfig-migrations.ts",
"db:seed": "bash scripts/db-seed.sh"
}
db-seed.sh:
#!/bin/bash
query=""
for filename in sql/seed/*.seed.sql; do
query=${query}"$(< ${filename})";
done
npm run typeorm query "${query}";
Pay attention there is a bug in this solution, there is always an error thrown from the logger typeorm uses - ignore it. it doesn't relate to the db operation, and does not represent the success of the process.
A migration file that was shared with others shouldn't be modified, in this case, create a new migration.
If that file wasn't shared and is in development, you can run migration:revert as many as you need, then modify and run migration:run again.

Answer 3

For running a specific migration my solution is in ormconfig.js add:
module.exports = {
...
migrations: [process.env.DB_MIGRATION_DIR || 'src/database/migrations/*.ts'],
...
}
and now use DB_MIGRATION_DIR=path/to/migration.ts npm run typeorm migration:run run your specific migration
Another tip for force re-running a migration, but might need some customization for connection string variables - add in your package.json:
{
"scripts": {
...
"migration:rerun": "psql postgresql://$DB_USER#localhost:5432/$DB_NAME -c "delete from migrations where name like '%$SEED_NAME%';" && DB_MIGRATION_DIR='$DB_MIGRATION_DIR' npm run typeorm migration:run"
...
}
...
}

Answer 4

I dont think we can run any migration particular with cli, but we can run it through query runner. please refer the following code:
const connection: Connection = getConnection();
const queryRunner: QueryRunner = connection.createQueryRunner();
//createDatabase16413343434 is class/migration generated from cli
const createDatabase = new createDatabase16413343434();
await createDatabase.up(queryRunner);

Answer 5

One can write custom code to run one migration like inserting a record or just creating/ deleting a single table kind of things. typeorm provides "QueryRunner" which basically run queries in the background. So just create a file with the code given following code to write custom single migration
code to run migration