first commit

RuslanGlaznyov · RuslanGlaznyov · commit cdbd6bebc7fd · 2024-01-23T16:23:18.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,175 @@
+# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
+
+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Caches 
+
+.cache
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store
diff --git a/README.md b/README.md
@@ -0,0 +1,42 @@
+# lava-exporter
+> Simple exporter to check your lava provider frozen or not 
+
+## Install  
+
+### Download exporter: 
+```bash 
+wget 
+```
+### Build from source: 
+1. Intall bun(javaScript runtime) https://bun.sh
+2. Clone this repo
+3. To install dependencies:
+```bash
+bun install
+```
+4. build binary:
+```bash
+bun build ./index.ts --compile --outfile lava-exporter  
+```
+## Usage 
+### Config example 
+```toml
+lava_rest_api = ['https://rest-public-rpc.lavanet.xyz']
+chains = ['EVMOST', 'EVMOS', 'AXELAR', 'AXELART']
+lava_provider_address = 'lava@1rgs6cp3vleue3vwffrvttjtl4laqhk8fthu466' 
+```
+Look at [config.example.toml](config.example.toml) for more details
+### Run
+```bash
+./lava-exporter start --config config.toml --port 3440 
+```
+
+### Metrics expose example 
+```
+# HELP provider_frozen Freezed status of a provider. 1 for frozen, 0 can be not frozen or not found in providers response.
+# TYPE provider_frozen gauge
+provider_frozen{chain="EVMOST"} 0
+provider_frozen{chain="EVMOS"} 0
+provider_frozen{chain="AXELAR"} 0
+provider_frozen{chain="AXELART"} 0
+```
diff --git a/bun.lockb b/bun.lockb
diff --git a/config.example.toml b/config.example.toml
@@ -0,0 +1,9 @@
+# array of lava rest api endpoints. Will be used next URL if previous is down
+lava_rest_api = ['https://rest-public-rpc.lavanet.xyz']
+# Your chains to track for your provider. 
+# Name should be match with the chainID from this list: 
+# https://rest-public-rpc.lavanet.xyz/lavanet/lava/spec/show_all_chains
+# Otherwise provider_frozen always will be 0
+chains = ['EVMOST', 'EVMOS', 'AXELAR', 'AXELART']
+# Your provider address 
+lava_provider_address = 'lava@1rgs6cp3vleue3vwffrvttjtl4laqhk8fthu466' 
diff --git a/helper.ts b/helper.ts
@@ -0,0 +1,45 @@
+export function urlResolve(from: string, to: string): string {
+  const resolvedUrl = new URL(to, new URL(from, 'resolve://'))
+  if (resolvedUrl.protocol === 'resolve:') {
+    // `from` is a relative URL.
+    const { pathname, search, hash } = resolvedUrl
+    return pathname + search + hash
+  }
+  return resolvedUrl.toString()
+}
+export async function fetchWithTimeoutAndFallback(urls: string[], timeout = 5000) {
+    // Function to fetch with a timeout
+    async function fetchWithTimeout(url: string, timeout: number) {
+        const controller = new AbortController();
+        const signal = controller.signal;
+        const fetchPromise = fetch(url, { signal });
+
+        // Timeout logic
+        const timeoutId = setTimeout(() => controller.abort(), timeout);
+
+        try {
+            const response = await fetchPromise;
+            clearTimeout(timeoutId);
+            return response;
+        } catch (error) {
+            clearTimeout(timeoutId);
+            throw error;
+        }
+    }
+
+    // Loop through the URLs
+    for (const url of urls) {
+        try {
+            const response = await fetchWithTimeout(url, timeout);
+            if (response.ok) {
+                return await response.json(); // or response.text(), depending on your needs
+            }
+            // Handle HTTP error statuses
+            console.error(`Fetch failed for ${url}: ${response.statusText}`);
+        } catch (error) {
+            console.error(`Error fetching ${url}:`, (error as Error).message);
+            // If it's a network error or timeout, try the next URL
+        }
+    }
+    throw new Error("All fetch attempts failed");
+}
diff --git a/index.ts b/index.ts
@@ -0,0 +1,66 @@
+import Prometheus from "prom-client";
+import toml from "toml";
+import { Command } from 'commander';
+import fs from 'fs'
+import { fetchWithTimeoutAndFallback, urlResolve } from "./helper";
+const program = new Command();
+const freezedProviders = new Prometheus.Gauge({
+  name: 'provider_frozen',
+  help: 'Freezed status of a provider. 1 for frozen, 0 can be not frozen or not found in providers response.',
+  labelNames: ['chain'],
+});
+type Config = {
+  lava_rest_api: string[],
+  chains: string[],
+  lava_provider_address: string,
+}
+async function getFrozenChains(config: Config) {
+  const frozenChains = []; 
+  const latestBlockUrl = config.lava_rest_api.map((url) => urlResolve(url, '/cosmos/base/tendermint/v1beta1/blocks/latest'));
+  const latestBlockResponse = await fetchWithTimeoutAndFallback(latestBlockUrl, 5000) as any;
+  const latestHeight = latestBlockResponse.block.header.height;
+  for (const chain of config.chains) {
+    const providerStatusUrl = config.lava_rest_api.map((url) => urlResolve(url, `/lavanet/lava/pairing/providers/${chain}?showFrozen=true`));
+    const providerStatusResponse = await fetchWithTimeoutAndFallback(providerStatusUrl, 5000) as any;
+    const frozenTotal = providerStatusResponse.stakeEntry.filter((provider: { stake_applied_block: string; }) => Number(provider.stake_applied_block) > Number(latestHeight))
+    const frozenProvider = frozenTotal.find((provider: { address: string; }) => config.lava_provider_address === provider.address);
+    if (frozenProvider) {
+      frozenChains.push(chain);    
+    }
+  }
+  return frozenChains;
+}
+
+program
+  .name('cosmos-exporter')
+  .description('Prometheus lava exporter')
+  .version('1.0.0');
+
+program.command('start')
+  .description('run exporter')
+  .option('--config <config>', 'Path to config file', './config.toml')
+  .option('-p, --port <port>', 'port', '5000')
+  .action(async (opt) => {
+    const tomlConfig = toml.parse(fs.readFileSync(opt.config, "utf-8")) as Config;
+        
+    Bun.serve({
+      port: opt.port,
+      async fetch(req) {
+        const frozenChains = await getFrozenChains(tomlConfig);
+        tomlConfig.chains.forEach((chain) => {
+          freezedProviders.labels({ chain }).set(0);
+        });
+        frozenChains.forEach((chain) => {
+          freezedProviders.labels({ chain }).set(1);
+        });
+        req.headers.set('Content-Type', Prometheus.register.contentType);
+        const metrics = await Prometheus.register.metrics();
+        return new Response(metrics)
+      },
+    });
+    console.log('RUN WITH CONFIG:')
+    console.log(tomlConfig)
+    console.log('listening on port ' + opt.port)
+  })
+
+program.parse(process.argv);
diff --git a/lava-exporter b/lava-exporter
diff --git a/package.json b/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "lava-exporter",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  },
+  "dependencies": {
+    "commander": "^11.1.0",
+    "prom-client": "^15.1.0",
+    "toml": "^3.0.0"
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
@@ -0,0 +1,22 @@
+{
+  "compilerOptions": {
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    /* Linting */
+    "skipLibCheck": true,
+    "strict": true,
+    "noFallthroughCasesInSwitch": true,
+    "forceConsistentCasingInFileNames": true
+  }
+}
