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Add LN node per country graph

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This commit is contained in:
nymkappa
2022-07-17 11:10:17 +02:00
parent 75f1b52a2a
commit 63ebace378
10 changed files with 423 additions and 6 deletions
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33
backend/src/api/explorer/nodes.api.ts
View File

@@ -186,6 +186,39 @@ class NodesApi {
throw e;
}
}
public async $getNodesCountries() {
try {
let query = `SELECT geo_names.names as names, geo_names_iso.names as iso_code, COUNT(DISTINCT nodes.public_key) as nodesCount, SUM(capacity) as capacity
FROM nodes
JOIN geo_names ON geo_names.id = nodes.country_id AND geo_names.type = 'country'
JOIN geo_names geo_names_iso ON geo_names_iso.id = nodes.country_id AND geo_names_iso.type = 'country_iso_code'
JOIN channels ON channels.node1_public_key = nodes.public_key OR channels.node2_public_key = nodes.public_key
GROUP BY country_id
ORDER BY COUNT(DISTINCT nodes.public_key) DESC
`;
const [nodesCountPerCountry]: any = await DB.query(query);
query = `SELECT COUNT(*) as total FROM nodes WHERE country_id IS NOT NULL`;
const [nodesWithAS]: any = await DB.query(query);
const nodesPerCountry: any[] = [];
for (const country of nodesCountPerCountry) {
nodesPerCountry.push({
name: JSON.parse(country.names),
iso: country.iso_code,
count: country.nodesCount,
share: Math.floor(country.nodesCount / nodesWithAS[0].total * 10000) / 100,
capacity: country.capacity,
})
}
return nodesPerCountry;
} catch (e) {
logger.err(`Cannot get nodes grouped by AS. Reason: ${e instanceof Error ? e.message : e}`);
throw e;
}
}
}
export default new NodesApi();

13
backend/src/api/explorer/nodes.routes.ts
View File

@@ -13,6 +13,7 @@ class NodesRoutes {
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/search/:search', this.$searchNode)
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/top', this.$getTopNodes)
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/isp', this.$getNodesISP)
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/countries', this.$getNodesCountries)
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key/statistics', this.$getHistoricalNodeStats)
.get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key', this.$getNode)
;
@@ -128,6 +129,18 @@ class NodesRoutes {
res.status(500).send(e instanceof Error ? e.message : e);
}
}
private async $getNodesCountries(req: Request, res: Response) {
try {
const nodesPerAs = await nodesApi.$getNodesCountries();
res.header('Pragma', 'public');
res.header('Cache-control', 'public');
res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
res.json(nodesPerAs);
} catch (e) {
res.status(500).send(e instanceof Error ? e.message : e);
}
}
}
export default new NodesRoutes();