79 lines
2.6 KiB
TypeScript
79 lines
2.6 KiB
TypeScript
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import { GitCommit } from './types/GitCommit';
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import { CommitStatus } from './types/CommitStatus';
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import { RawTokenJSON } from './types/TokensJson';
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const { processTokenJson } = require('./update-tokens-utils');
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const https = require('https');
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const fs = require('fs');
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const path = require('path');
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function httpsGet(opts: any): Promise<string> {
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return new Promise(resolve => {
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https.get(opts, (res: any) => {
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let body = '';
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res.setEncoding('utf8');
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res.on('data', (data: any) => (body += data));
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res.on('end', () => {
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resolve(body);
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});
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});
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});
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}
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function githubApi<T extends object>(pathTail: string): Promise<T> {
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return httpsGet({
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hostname: 'api.github.com',
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path: `/repos/ethereum-lists/tokens${pathTail}`,
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headers: {
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'user-agent': 'node',
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'content-type': 'application/json; charset=utf-8'
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}
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}).then(body => JSON.parse(body));
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}
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async function run() {
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// First we fetch the latest commit from ethereum-lists/tokens
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console.log('Fetching ethereum-lists/tokens commits...');
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const commits = await githubApi<GitCommit[]>('/commits');
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const commit = commits[0];
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// Then we fetch its build status
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console.log('Fetching commits statuses...');
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const statuses = await githubApi<CommitStatus[]>(`/statuses/${commit.sha}`);
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// Fetch the IPFS link, which is a page of links to other IPFS links
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console.log('Fetching IPFS output HTML...');
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const ipfsUrl = statuses.find(status => status.target_url.includes('ipfs'));
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if (!ipfsUrl) {
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throw Error('ipfs url not found');
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}
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const ipfsTargetUrl = ipfsUrl.target_url;
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const ipfsHtml = await httpsGet(ipfsTargetUrl);
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// Get the IPFS url for the eth tokens json. Regexxing HTML hurts, but w/e
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console.log('Fetching IPFS ETH Tokens JSON...');
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const tokenUrlMatch = ipfsHtml.match(/<a href='([^']+)'>output\/minified\/eth\.json<\/a>/);
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if (!tokenUrlMatch) {
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throw Error('No match found for token url');
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}
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const tokensUrl = tokenUrlMatch[1];
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const tokensJson: RawTokenJSON[] = JSON.parse(await httpsGet(tokensUrl));
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// Format the json to match our format in common/config/tokens/eth.json
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const tokens = processTokenJson(tokensJson);
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// Write to the file
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console.log('Writing Tokens JSON to common/config/tokens/eth.json...');
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const filePath = path.resolve(__dirname, '../common/config/tokens/eth.json');
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fs.writeFile(filePath, JSON.stringify(tokens, null, 2), 'utf8', (err: any) => {
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if (err) {
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console.error(err);
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throw new Error('Failed to write tokens json to file, see above error');
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}
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console.log('Succesfully imported', tokens.length, 'tokens!');
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});
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}
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run();
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