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Improving channels api with node data

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This commit is contained in:
softsimon
2022-05-16 00:01:53 +04:00
parent e12f32ef80
commit 7f7fa2eb6a
8 changed files with 49 additions and 18 deletions
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8
lightning-backend/src/api/explorer/channels.api.ts
View File

@@ -49,7 +49,7 @@ class ChannelsApi {
public async $getChannel(shortId: string): Promise<any> {
try {
const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.* FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key WHERE channels.id = ?`;
const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.*, ns1.channels AS channels_left, ns1.capacity AS capacity_left, ns2.channels AS channels_right, ns2.capacity AS capacity_right FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key LEFT JOIN node_stats AS ns1 ON ns1.public_key = channels.node1_public_key LEFT JOIN node_stats AS ns2 ON ns2.public_key = channels.node2_public_key WHERE (ns1.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node1_public_key) AND ns2.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node2_public_key)) AND channels.id = ?`;
const [rows]: any = await DB.query(query, [shortId]);
if (rows[0]) {
return this.convertChannel(rows[0]);
@@ -75,7 +75,7 @@ class ChannelsApi {
public async $getChannelsForNode(public_key: string): Promise<any> {
try {
const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.* FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key WHERE node1_public_key = ? OR node2_public_key = ? ORDER BY channels.capacity DESC`;
const query = `SELECT n1.alias AS alias_left, n2.alias AS alias_right, channels.*, ns1.channels AS channels_left, ns1.capacity AS capacity_left, ns2.channels AS channels_right, ns2.capacity AS capacity_right FROM channels LEFT JOIN nodes AS n1 ON n1.public_key = channels.node1_public_key LEFT JOIN nodes AS n2 ON n2.public_key = channels.node2_public_key LEFT JOIN node_stats AS ns1 ON ns1.public_key = channels.node1_public_key LEFT JOIN node_stats AS ns2 ON ns2.public_key = channels.node2_public_key WHERE (ns1.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node1_public_key) AND ns2.id = (SELECT MAX(id) FROM node_stats WHERE public_key = channels.node2_public_key)) AND (node1_public_key = ? OR node2_public_key = ?) ORDER BY channels.capacity DESC`;
const [rows]: any = await DB.query(query, [public_key, public_key]);
const channels = rows.map((row) => this.convertChannel(row));
return channels;
@@ -98,6 +98,8 @@ class ChannelsApi {
'node_left': {
'alias': channel.alias_left,
'public_key': channel.node1_public_key,
'channels': channel.channels_left,
'capacity': channel.capacity_left,
'base_fee_mtokens': channel.node1_base_fee_mtokens,
'cltv_delta': channel.node1_cltv_delta,
'fee_rate': channel.node1_fee_rate,
@@ -109,6 +111,8 @@ class ChannelsApi {
'node_right': {
'alias': channel.alias_right,
'public_key': channel.node2_public_key,
'channels': channel.channels_right,
'capacity': channel.capacity_right,
'base_fee_mtokens': channel.node2_base_fee_mtokens,
'cltv_delta': channel.node2_cltv_delta,
'fee_rate': channel.node2_fee_rate,

2
lightning-backend/src/tasks/stats-updater.service.ts
View File

@@ -33,7 +33,7 @@ class LightningStatsUpdater {
return;
}
const query = `SELECT nodes.public_key, c1.channels_count_left, c2.channels_count_right, c1.channels_capacity_left, c2.channels_capacity_right FROM nodes LEFT JOIN (SELECT node1_public_key, COUNT(id) AS channels_count_left, SUM(capacity) AS channels_capacity_left FROM channels GROUP BY node1_public_key) c1 ON c1.node1_public_key = nodes.public_key LEFT JOIN (SELECT node2_public_key, COUNT(id) AS channels_count_right, SUM(capacity) AS channels_capacity_right FROM channels GROUP BY node2_public_key) c2 ON c2.node2_public_key = nodes.public_key`;
const query = `SELECT nodes.public_key, c1.channels_count_left, c2.channels_count_right, c1.channels_capacity_left, c2.channels_capacity_right FROM nodes LEFT JOIN (SELECT node1_public_key, COUNT(id) AS channels_count_left, SUM(capacity) AS channels_capacity_left FROM channels WHERE channels.status < 2 GROUP BY node1_public_key) c1 ON c1.node1_public_key = nodes.public_key LEFT JOIN (SELECT node2_public_key, COUNT(id) AS channels_count_right, SUM(capacity) AS channels_capacity_right FROM channels WHERE channels.status < 2 GROUP BY node2_public_key) c2 ON c2.node2_public_key = nodes.public_key`;
const [nodes]: any = await DB.query(query);
// First run we won't have any nodes yet