vendure/packages/email-plugin/src/common.ts

import { Injector, RequestContext } from '@vendure/core';

import { EmailPluginDevModeOptions, EmailPluginOptions, EmailTransportOptions } from './types';

export function isDevModeOptions(
    input: EmailPluginOptions | EmailPluginDevModeOptions,
): input is EmailPluginDevModeOptions {
    return (input as EmailPluginDevModeOptions).devMode === true;
}

export async function resolveTransportSettings(
    options: EmailPluginOptions,
    injector: Injector,
    ctx?: RequestContext
): Promise<EmailTransportOptions> {
    if (typeof options.transport === 'function') {
        return options.transport(injector, ctx);
    } else {
        return options.transport;
    }
}