unleash.unleash/frontend/src/component/demo/demo-setup.ts

import { IFeatureToggle } from 'interfaces/featureToggle';
import { formatApiPath } from 'utils/formatPath';

const PROJECT = 'demo-app';
const ENVIRONMENT = 'dev';

export const gradualRollout = async () => {
    const featureId = 'demoApp.step3';

    const { environments }: IFeatureToggle = await fetch(
        formatApiPath(
            `api/admin/projects/${PROJECT}/features/${featureId}?variantEnvironments=true`
        )
    ).then(res => res.json());

    const strategies =
        environments.find(({ name }) => name === ENVIRONMENT)?.strategies || [];

    if (!strategies.find(({ name }) => name === 'flexibleRollout')) {
        await fetch(
            formatApiPath(
                `api/admin/projects/${PROJECT}/features/${featureId}/environments/${ENVIRONMENT}/strategies`
            ),
            {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                },
                body: JSON.stringify({
                    name: 'flexibleRollout',
                    constraints: [],
                    parameters: {
                        rollout: '50',
                        stickiness: 'default',
                        groupId: featureId,
                    },
                }),
            }
        );
    }
};

export const variants = async () => {
    const featureId = 'demoApp.step4';

    const { variants }: IFeatureToggle = await fetch(
        formatApiPath(
            `api/admin/projects/${PROJECT}/features/${featureId}?variantEnvironments=true`
        )
    ).then(res => res.json());

    if (!variants.length) {
        await fetch(
            formatApiPath(
                `api/admin/projects/${PROJECT}/features/${featureId}/environments/${ENVIRONMENT}/variants`
            ),
            {
                method: 'PATCH',
                headers: {
                    'Content-Type': 'application/json',
                },
                body: JSON.stringify([
                    {
                        op: 'add',
                        path: '/0',
                        value: {
                            name: 'red',
                            weightType: 'variable',
                            weight: 333,
                            overrides: [],
                            stickiness: 'default',
                            payload: {
                                type: 'string',
                                value: 'red',
                            },
                        },
                    },
                    {
                        op: 'add',
                        path: '/1',
                        value: {
                            name: 'green',
                            weightType: 'variable',
                            weight: 333,
                            overrides: [],
                            stickiness: 'default',
                            payload: {
                                type: 'string',
                                value: 'green',
                            },
                        },
                    },
                    {
                        op: 'add',
                        path: '/2',
                        value: {
                            name: 'blue',
                            weightType: 'variable',
                            weight: 333,
                            overrides: [],
                            stickiness: 'default',
                            payload: {
                                type: 'string',
                                value: 'blue',
                            },
                        },
                    },
                ]),
            }
        );
    }
};