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Reduce api size for channel world map in ln dashboard - added spinner - update cache warmer

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This commit is contained in:
nymkappa
2022-08-22 17:55:19 +02:00
parent 6b6f3d71ac
commit 61db4f96f2
7 changed files with 133 additions and 48 deletions
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58
backend/src/api/explorer/channels.api.ts
View File

@@ -17,32 +17,60 @@ class ChannelsApi {
}
}
public async $getAllChannelsGeo(publicKey?: string): Promise<any[]> {
public async $getAllChannelsGeo(publicKey?: string, style?: string): Promise<any[]> {
try {
let select: string;
if (style === 'widget') {
select = `
nodes_1.latitude AS node1_latitude, nodes_1.longitude AS node1_longitude,
nodes_2.latitude AS node2_latitude, nodes_2.longitude AS node2_longitude
`;
} else {
select = `
nodes_1.public_key as node1_public_key, nodes_1.alias AS node1_alias,
nodes_1.latitude AS node1_latitude, nodes_1.longitude AS node1_longitude,
nodes_2.public_key as node2_public_key, nodes_2.alias AS node2_alias,
nodes_2.latitude AS node2_latitude, nodes_2.longitude AS node2_longitude
`;
}
const params: string[] = [];
let query = `SELECT nodes_1.public_key as node1_public_key, nodes_1.alias AS node1_alias,
nodes_1.latitude AS node1_latitude, nodes_1.longitude AS node1_longitude,
nodes_2.public_key as node2_public_key, nodes_2.alias AS node2_alias,
nodes_2.latitude AS node2_latitude, nodes_2.longitude AS node2_longitude,
channels.capacity
FROM channels
JOIN nodes AS nodes_1 on nodes_1.public_key = channels.node1_public_key
JOIN nodes AS nodes_2 on nodes_2.public_key = channels.node2_public_key
WHERE nodes_1.latitude IS NOT NULL AND nodes_1.longitude IS NOT NULL
AND nodes_2.latitude IS NOT NULL AND nodes_2.longitude IS NOT NULL
let query = `SELECT ${select}
FROM channels
JOIN nodes AS nodes_1 on nodes_1.public_key = channels.node1_public_key
JOIN nodes AS nodes_2 on nodes_2.public_key = channels.node2_public_key
WHERE nodes_1.latitude IS NOT NULL AND nodes_1.longitude IS NOT NULL
AND nodes_2.latitude IS NOT NULL AND nodes_2.longitude IS NOT NULL
`;
if (publicKey !== undefined) {
query += ' AND (nodes_1.public_key = ? OR nodes_2.public_key = ?)';
params.push(publicKey);
params.push(publicKey);
} else {
query += ` AND channels.capacity > 1000000
GROUP BY nodes_1.public_key, nodes_2.public_key
ORDER BY channels.capacity DESC
LIMIT 10000
`;
}
const [rows]: any = await DB.query(query, params);
return rows.map((row) => [
row.node1_public_key, row.node1_alias, row.node1_longitude, row.node1_latitude,
row.node2_public_key, row.node2_alias, row.node2_longitude, row.node2_latitude,
row.capacity]);
return rows.map((row) => {
if (style === 'widget') {
return [
row.node1_longitude, row.node1_latitude,
row.node2_longitude, row.node2_latitude,
];
} else {
return [
row.node1_public_key, row.node1_alias,
row.node1_longitude, row.node1_latitude,
row.node2_public_key, row.node2_alias,
row.node2_longitude, row.node2_latitude,
];
}
});
} catch (e) {
logger.err('$getAllChannelsGeo error: ' + (e instanceof Error ? e.message : e));
throw e;

6
backend/src/api/explorer/channels.routes.ts
View File

@@ -102,7 +102,11 @@ class ChannelsRoutes {
private async $getAllChannelsGeo(req: Request, res: Response) {
try {
const channels = await channelsApi.$getAllChannelsGeo(req.params?.publicKey);
const style: string = typeof req.query.style === 'string' ? req.query.style : '';
const channels = await channelsApi.$getAllChannelsGeo(req.params?.publicKey, style);
res.header('Pragma', 'public');
res.header('Cache-control', 'public');
res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
res.json(channels);
} catch (e) {
res.status(500).send(e instanceof Error ? e.message : e);