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Add generic query for supported chains #48

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merged 1 commit into from
Jul 3, 2024
Merged

Add generic query for supported chains #48

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18 changes: 9 additions & 9 deletions src/usage.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import { APIErrorResponse } from "./utils.js";
import type { Context } from "hono";
import type { AdditionalQueryParams, EndpointReturnTypes, UsageEndpoints, UsageResponse, ValidUserParams } from "./types/api.js";
import { config } from "./config.js";
import { SupportedChains } from "./types/zod.gen.js";

export async function makeUsageQuery(ctx: Context, endpoint: UsageEndpoints, user_params: ValidUserParams<typeof endpoint>) {
type EndpointElementReturnType = EndpointReturnTypes<typeof endpoint>[number];
Expand Down Expand Up @@ -32,8 +33,8 @@ export async function makeUsageQuery(ctx: Context, endpoint: UsageEndpoints, use
let database = config.database;

if (endpoint !== "/chains") {
// TODO: Document required database setup
const q = query_params as ValidUserParams<typeof endpoint>;
// TODO: Document required database setup
database = `${q.chain}_tokens_v1`;
}

Expand Down Expand Up @@ -65,7 +66,7 @@ export async function makeUsageQuery(ctx: Context, endpoint: UsageEndpoints, use
filters = filters.replace(
"(from = {from: String}) AND (to = {to: String})",
"((from = {from: String}) OR (to = {to: String}))",
)
);

if (q.block_range) {
query += `${database}.transfers_block_num`;
Expand Down Expand Up @@ -93,13 +94,12 @@ export async function makeUsageQuery(ctx: Context, endpoint: UsageEndpoints, use
} else if (endpoint == "/{chain}/holders") {
query += `SELECT account, value FROM (SELECT account, MAX(updated_at_block_num) AS last_updated FROM ${database}.account_balances ${filters} GROUP BY account) AS x INNER JOIN ${database}.account_balances AS y ON y.account = x.account AND y.updated_at_block_num = x.last_updated ${filters} ORDER BY value DESC`;
} else if (endpoint == "/chains") {
// TODO: More flexible to account for different chains ?
query +=
`SELECT 'wax' as chain, MAX(block_num) as block_num`
+ ` FROM wax_tokens_v1.cursors GROUP BY id`
+ ` UNION ALL`
+ ` SELECT 'eos' as chain, MAX(block_num) as block_num`
+ ` FROM eos_tokens_v1.cursors GROUP BY id`;
for (const o of SupportedChains._def.options)
query +=
`SELECT '${o.value}' as chain, MAX(block_num) as block_num`
+ ` FROM ${o.value}_tokens_v1.cursors GROUP BY id`
+ ` UNION ALL `;
query = query.substring(0, query.lastIndexOf(' UNION')); // Remove last item ` UNION`
} else if (endpoint == "/{chain}/transfers/{trx_id}") {
query += `SELECT * FROM ${database}.transfer_events ${filters} ORDER BY action_index`;
} else if (endpoint == "/{chain}/tokens") {
Expand Down
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