Heroku can't find ExpressJS/Knex migrations - postgresql

Question

I have an Express.js api that works locally, using Postgresql via Knex/SQL queries.
I am trying to deploy to Heroku, however, when I attempt to migrate the DB I get the error that Heroku can't find the migration files.
Specifically, when I run the migration it throws:
Using environment: production Error: ENOENT: no such file or
directory, scandir '/app/migrations'
My migrations are located at my_app/db/migrations. The app folder mentioned in the error does not exist. Trying to figure out how to point to the correct folder.
Here is my package.json:
{
"name": "writerboard-express-api",
"version": "1.0.0",
"description": "",
"main": "server.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"serve": "cross-env NODE_ENV=development nodemon server.js"
},
"keywords": [],
"author": "dariusgoore <dariusgoore#gmail.com> (dariusgoore.com)",
"license": "MIT",
"dependencies": {
"bcryptjs": "^2.4.3",
"body-parser": "^1.19.0",
"cors": "^2.8.5",
"dotenv": "^8.1.0",
"express": "^4.17.1",
"express-jwt": "^5.3.1",
"jsonwebtoken": "^8.5.1",
"knex": "^0.19.3",
"objection": "^1.6.9",
"objection-password": "^2.0.0",
"passport": "^0.4.0",
"passport-local": "^1.0.0",
"pg": "^7.12.1"
},
"devDependencies": {
"cross-env": "^5.2.1",
"nodemon": "^1.19.1"
}
}
My knexfile (myapp/knexfile.js):
const dotenv = require('dotenv');
dotenv.config({ path: "../.env" });
module.exports = {
development: {
client: 'postgresql',
connection: {
database: 'writerboard_dev', // update with env var
user: 'dariusgoore' // update with env var
},
pool: {
min: 2,
max: 10
},
migrations: {
tableName: 'knex_migrations',
directory: './db/migrations'
},
seeds: {
directory: './db/seeds'
}
},
production: {
client: 'postgresql',
connection: process.env.DATABASE_URL,
pool: {
min: 2,
max: 10
},
migrations: {
tableName: 'knex_migrations'
},
ssl: true
}
};
here is the server log from heroku:
2019-09-16T14:25:00.251226+00:00 heroku[web.1]: State changed from down to starting
2019-09-16T14:25:00.063523+00:00 app[api]: Release v8 created by user dariusgoore#gmail.com
2019-09-16T14:25:00.063523+00:00 app[api]: Deploy b697b243 by user dariusgoore#gmail.com
2019-09-16T14:25:00.000000+00:00 app[api]: Build succeeded
2019-09-16T14:25:03.700742+00:00 heroku[web.1]: Starting process with command `node server.js`
2019-09-16T14:25:08.369304+00:00 heroku[web.1]: State changed from starting to up
2019-09-16T14:25:07.885086+00:00 app[web.1]: Running on localhost:58146

Answer 1

FYI, the answer was in the knexfile.js. Needed to set the migrations directory for production.