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107 lines
2.4 KiB
Markdown
107 lines
2.4 KiB
Markdown
# Developer Guide
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## PostgreSQL
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To run and develop unleash you need to have PostgreSQL databse (PostgreSQL v.9.5.x or newer) locally.
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### Create a local unleash databases in postgres
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```bash
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$ psql postgres <<SQL
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CREATE USER unleash_user WITH PASSWORD 'passord';
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CREATE DATABASE unleash;
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GRANT ALL PRIVILEGES ON DATABASE unleash to unleash_user;
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CREATE DATABASE unleash_test;
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GRANT ALL PRIVILEGES ON DATABASE unleash_test to unleash_user;
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SQL
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```
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Then set env vars:
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(Optional as unleash will asume these as default values).
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```
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export DATABASE_URL=postgres://unleash_user:passord@localhost:5432/unleash
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export TEST_DATABASE_URL=postgres://unleash_user:passord@localhost:5432/unleash_test
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```
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## PostgreSQL with docker
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If you dont want to install PostgreSQL locally you can spin up an instance with docker.
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We have created a script to ease this process: `scripts/docker-postgres.sh`
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## Commands
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```
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// Install dependencies
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npm install
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// Build unleash-frontend
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// (yes this is a bit wierd and be easier when we have a release of the frontend artifact).
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// You can of course "npm link unleash-frontend" instead
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cd node_modules/unleash-frontend && npm install
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// Start server in development
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npm start:dev
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// Admin dashboard
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http://localhost:4242
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// Feature API:
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http://localhost:4242/api/features
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// Execute tests in all packages:
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npm test
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```
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## Database changes
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We use database migrations to track database changes.
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### Making a schema change
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In order to run migrations you will set the environment variable for DATABASE_URL
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`export DATABASE_URL=postgres://unleash_user:passord@localhost:5432/unleash`
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Use db-migrate to create new migrations file.
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```bash
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> npm run db-migrate -- create YOUR-MIGRATION-NAME
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```
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All migrations requires on `up` and one `down` method.
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Example of a typical migration:
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```js
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/* eslint camelcase: "off" */
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'use strict';
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exports.up = function (db, cb) {
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db.createTable('examples', {
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id: { type: 'int', primaryKey: true, notNull: true },
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created_at: { type: 'timestamp', defaultValue: 'now()' },
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}, cb);
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};
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exports.down = function (db, cb) {
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return db.dropTable('examples', cb);
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};
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```
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Test your migrations:
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```bash
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> npm run db-migrate -- up
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> npm run db-migrate -- down
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```
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## Publishing / Releasing new packages
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Please run `npm run nsp` nad `npm run test` checks before publishing.
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Run `npm run publish` to start the publishing process.
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`npm run publish:dry`
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