Create spice-provider.ts

Author: lukekim

packages/providers/src.ts/spice-provider.ts

@@ -0,0 +1,54 @@
+"use strict"
+
+import {
+  UrlJsonRpcProvider,
+  showThrottleMessage,
+} from "@ethersproject/providers"
+
+import { Logger } from "@ethersproject/logger"
+const logger = new Logger("providers/5.5.1")
+
+const defaultApiKey = "3439|6806e8faf10643e2bde903920bbcb1ff"
+
+export class SpiceProvider extends UrlJsonRpcProvider {
+  static getApiKey(apiKey) {
+    if (apiKey == null) {
+      return defaultApiKey
+    }
+    if (apiKey && typeof apiKey !== "string") {
+      logger.throwArgumentError("invalid apiKey", "apiKey", apiKey)
+    }
+    return apiKey
+  }
+
+  static getUrl(network, apiKey) {
+    const host = "https://data.spiceai.io"
+    let path = null
+    switch (network.name) {
+      case "homestead":
+        path = "/eth"
+        break
+      default:
+        logger.throwArgumentError(
+          "unsupported network",
+          "network",
+          arguments[0]
+        )
+    }
+
+    return {
+      allowGzip: true,
+      url: host + path,
+      throttleCallback: (attempt, url) => {
+        if (apiKey === defaultApiKey) {
+          showThrottleMessage()
+        }
+        return Promise.resolve(true)
+      },
+    }
+  }
+
+  isCommunityResource() {
+    return this.apiKey === defaultApiKey
+  }
+}