alepha@docs:~/docs/reference/primitives$
cat $mode.md | pretty
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#$mode

#Import

typescript 
1import { $mode } from "alepha";

#Overview

Activate a selective bootstrap mode.

When the environment condition matches, the owning class becomes alepha.target: the DI graph is pruned to only this class and its transitive dependencies. Everything else (HTTP server, job scheduler, etc.) is discarded.

Returns true if the mode is active, false otherwise.

#Examples

ts 
 1import { $mode, $inject } from "alepha"; 2import { DatabaseProvider } from "alepha/orm"; 3  4class DbMigrationMode { 5  db = $inject(DatabaseProvider); 6  7  mode = $mode({ 8    env: "MIGRATE", 9    ready: async () => {10      await this.db.migrate();11    },12  });13}
bash 
MIGRATE=true node app.js    # runs migrations, then exits
MODE=MIGRATE node app.js    # same effect