Missing required argument: dataSource

Question

I tried to generate migration files with typeorm version 0.3.6.I don't know why but in version 0.2.x it work with the command

npm run typeorm migration:generate -n <file name>

In newest version,I't so mess with me, I get another to another bugs , finally, I think I almost done but I continue get the error

Missing required argument: dataSource

this is scripts in my package.json

"scripts": { "server": "nodemon dist/index.js", "watch": "tsc -w", "test": "echo \"Error: no test specified\" && exit 1", "typeorm": "ts-node ./node_modules/typeorm/cli.js" },

ormconfig.json

{ "type":"postgres", "host":"localhost", "port":5432, "username":"postgres", "password":"", "database":"test-deploy", "entities":["dist/entities/*.js"], "migrations":["dist/migrations/*.js"] }

dataSource.ts

export const dataSource = new DataSource({ type:"postgres", username: process.env.PG_USERNAME_DEV, password: process.env.PG_PASSWORD_DEV, database: "memories", synchronize: false, logging: false, entities: [Admin,...], subscribers: [], migrations: [], }) //For ApolloServer export const resolvers : NonEmptyArray<Function> =[AdminResolver,...]

My file structure like this

server src ... dist data-source.js entities/myEntity.js

and the command i use to generate migration

 npm run typeorm migration:generate -n initial -d dist/data-source.js

Am i missing something? How can i fix it?

I had same issue, and this thread solved the issue: stackoverflow.com/questions/71803499/… — edgecrusher
– edgecrusher, Commented May 6, 2022 at 14:26

Lucas Mikó · Accepted Answer · 2022-06-13 02:21:28Z

In my case, it's was not necessary two files (omrconfig.json and datasource.ts).

You can resolve this case created a file ormconfig.ts how the next:

 const AppDataSource = new DataSource({ type: 'mysql', host: 'localhost', port: 645664, username: 'test', password: 'test', database: 'oracli', synchronize: false, logging: true, "entities": [ "src/typeorm/**/*.ts" ], "migrations": [ "typeorm/migrations/**/*.ts" ], "subscribers": [ "src/subscriber/**/*.ts" ], }); export default AppDataSource;

After you can use the scrtipts:

"migrate:create": "typeorm migration:create \"./typeorm/migrations/", "migrate:up": "ts-node --transpile-only ./node_modules/typeorm/cli.js migration:run -d ormconfig.ts", "migrate:down": "ts-node --transpile-only ./node-modules/typeorm/cli.js migration:revert"

I'm use the "typeorm": "^0.3.6" and my file structure like this:

server typeorm migrations src ormconfig.ts package.json

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