puyopuyotetr.is/app/javascript/mastodon/actions/server.js

import api from '../api';
import { importFetchedAccount } from './importer';

export const SERVER_FETCH_REQUEST = 'Server_FETCH_REQUEST';
export const SERVER_FETCH_SUCCESS = 'Server_FETCH_SUCCESS';
export const SERVER_FETCH_FAIL    = 'Server_FETCH_FAIL';

export const EXTENDED_DESCRIPTION_REQUEST = 'EXTENDED_DESCRIPTION_REQUEST';
export const EXTENDED_DESCRIPTION_SUCCESS = 'EXTENDED_DESCRIPTION_SUCCESS';
export const EXTENDED_DESCRIPTION_FAIL    = 'EXTENDED_DESCRIPTION_FAIL';

export const SERVER_DOMAIN_BLOCKS_FETCH_REQUEST = 'SERVER_DOMAIN_BLOCKS_FETCH_REQUEST';
export const SERVER_DOMAIN_BLOCKS_FETCH_SUCCESS = 'SERVER_DOMAIN_BLOCKS_FETCH_SUCCESS';
export const SERVER_DOMAIN_BLOCKS_FETCH_FAIL    = 'SERVER_DOMAIN_BLOCKS_FETCH_FAIL';

export const fetchServer = () => (dispatch, getState) => {
  dispatch(fetchServerRequest());

  api(getState)
    .get('/api/v2/instance').then(({ data }) => {
      if (data.contact.account) dispatch(importFetchedAccount(data.contact.account));
      dispatch(fetchServerSuccess(data));
    }).catch(err => dispatch(fetchServerFail(err)));
};

const fetchServerRequest = () => ({
  type: SERVER_FETCH_REQUEST,
});

const fetchServerSuccess = server => ({
  type: SERVER_FETCH_SUCCESS,
  server,
});

const fetchServerFail = error => ({
  type: SERVER_FETCH_FAIL,
  error,
});

export const fetchExtendedDescription = () => (dispatch, getState) => {
  dispatch(fetchExtendedDescriptionRequest());

  api(getState)
    .get('/api/v1/instance/extended_description')
    .then(({ data }) => dispatch(fetchExtendedDescriptionSuccess(data)))
    .catch(err => dispatch(fetchExtendedDescriptionFail(err)));
};

const fetchExtendedDescriptionRequest = () => ({
  type: EXTENDED_DESCRIPTION_REQUEST,
});

const fetchExtendedDescriptionSuccess = description => ({
  type: EXTENDED_DESCRIPTION_SUCCESS,
  description,
});

const fetchExtendedDescriptionFail = error => ({
  type: EXTENDED_DESCRIPTION_FAIL,
  error,
});

export const fetchDomainBlocks = () => (dispatch, getState) => {
  dispatch(fetchDomainBlocksRequest());

  api(getState)
    .get('/api/v1/instance/domain_blocks')
    .then(({ data }) => dispatch(fetchDomainBlocksSuccess(true, data)))
    .catch(err => {
      if (err.response.status === 404) {
        dispatch(fetchDomainBlocksSuccess(false, []));
      } else {
        dispatch(fetchDomainBlocksFail(err));
      }
    });
};

const fetchDomainBlocksRequest = () => ({
  type: SERVER_DOMAIN_BLOCKS_FETCH_REQUEST,
});

const fetchDomainBlocksSuccess = (isAvailable, blocks) => ({
  type: SERVER_DOMAIN_BLOCKS_FETCH_SUCCESS,
  isAvailable,
  blocks,
});

const fetchDomainBlocksFail = error => ({
  type: SERVER_DOMAIN_BLOCKS_FETCH_FAIL,
  error,
});