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add geotest block meta
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DenisCarriere committed May 6, 2024
1 parent 4c87ad7 commit e665373
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70 changes: 70 additions & 0 deletions examples/geotest-blockmeta.mjs
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import { createRegistry, createRequest } from "@substreams/core";
import { readPackage } from "@substreams/manifest";
import { BlockEmitter } from "@substreams/node";
import { createNodeTransport } from "@substreams/node/createNodeTransport";

// auth API token
// https://app.streamingfast.io/
// https://app.pinax.network/
if (!process.env.SUBSTREAMS_API_KEY) {
throw new Error("SUBSTREAMS_API_KEY is require");
}

const token = process.env.SUBSTREAMS_API_KEY;
const baseUrl = "https://geotest.substreams.pinax.network:443";

// User parameters
const manifest = "https://github.com/pinax-network/substreams/releases/download/blocks-v0.1.0/blocks-v0.1.0.spkg";
const outputModule = "map_blocks";
const startBlockNum = 2;
const stopBlockNum = "+3000";
const productionMode = true;

// Read Substream
const substreamPackage = await readPackage(manifest);
if (!substreamPackage.modules) {
throw new Error("No modules found in substream package");
}

// Connect Transport
const registry = createRegistry(substreamPackage);
const transport = createNodeTransport(baseUrl, token, registry);
const request = createRequest({
substreamPackage,
outputModule,
startBlockNum,
stopBlockNum,
productionMode,
});

// NodeJS Events
const emitter = new BlockEmitter(transport, request, registry);

// Session Trace ID
emitter.on("session", (session) => {
console.dir(session);
});

// Stream Blocks
emitter.on("anyMessage", (message, cursor, clock) => {
console.dir(message);
console.dir(cursor);
console.dir(clock);
});

// End of Stream
emitter.on("close", (error) => {
if (error) {
console.error(error);
}
console.timeEnd("🆗 close");
});

// Fatal Error
emitter.on("fatalError", (error) => {
console.error(error);
});

console.log("✅ start");
console.time("🆗 close");
emitter.start();

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