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• [FILE] index.d.mts
• [FILE] index.d.ts
• [FILE] index.js
• [FILE] index.js.map
• [FILE] index.mjs
• [FILE] index.mjs.map
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{"version":3,"sources":["../src/subscription-manager/chainHeadFollow.ts","../src/subscription-manager/transaction-submit-watch.ts","../src/subscription-manager/subscription-manager.ts","../src/get-sync-provider.ts"],"sourcesContent":["import { SubscriptionId, SubscriptionLogic } from \"@/internal-types\"\n\nconst [START_METHODS, STOP_METHODS, NOTIFICATION_METHODS] = [\n  \"follow\",\n  \"unfollow\",\n  \"followEvent\",\n].map(\n  (name) =>\n    new Set(\n      [\"v1\", \"unstable\"].map((version) => `chainHead_${version}_${name}`),\n    ),\n)\nconst STOP_EVENT = \"stop\"\n\nexport const chainHeadFollow = (\n  onMessage: (msg: string) => void,\n): SubscriptionLogic => {\n  let notificationMethod = \"\"\n  return {\n    onSent(parsed) {\n      if (START_METHODS.has(parsed.method)) {\n        notificationMethod = parsed.method + \"Event\"\n        return {\n          type: \"subscribe\",\n          id: parsed.id,\n          onRes: (innerParsed) =>\n            innerParsed.id === parsed.id ? { id: innerParsed.result } : null,\n        }\n      }\n\n      if (STOP_METHODS.has(parsed.method))\n        return {\n          type: \"unsubscribe\",\n          id: Object.values(parsed.params)[0] as string,\n        }\n\n      return null\n    },\n    onNotification(parsed) {\n      if (!NOTIFICATION_METHODS.has(parsed.method)) return null\n\n      return parsed.params.result.event === STOP_EVENT\n        ? {\n            type: \"end\",\n            id: parsed.params.subscription as SubscriptionId,\n          }\n        : null\n    },\n    onAbort: (id) => {\n      onMessage(\n        JSON.stringify({\n          jsonrpc: \"2.0\",\n          method: notificationMethod,\n          params: {\n            subscription: id,\n            result: {\n              event: STOP_EVENT,\n            },\n          },\n        }),\n      )\n    },\n  }\n}\n","import { SubscriptionId, SubscriptionLogic } from \"@/internal-types\"\n\nconst versions = [\"v1\", \"unstable\"] as const\nconst groupNames = [\"transactionWatch\", \"transaction\"] as const\nconst groupNameVersionPermutations = versions\n  .map((v) => groupNames.map((g) => [v, g] as const))\n  .flat()\n\nconst [START_METHODS, STOP_METHODS] = [\"submitAndWatch\", \"unwatch\"].map(\n  (name) =>\n    new Set(\n      groupNameVersionPermutations.map(\n        ([version, groupName]) => `${groupName}_${version}_${name}`,\n      ),\n    ),\n)\nconst ABORT_EVENT = \"dropped\"\n\nconst terminalEvents = new Set([ABORT_EVENT, \"finalized\", \"error\", \"invalid\"])\n\nexport const txSubmitAndWatch = (\n  onMessage: (msg: string) => void,\n): SubscriptionLogic => {\n  let notificationMethod = \"\"\n  return {\n    onSent(parsed) {\n      if (START_METHODS.has(parsed.method)) {\n        if (!notificationMethod) {\n          const [groupName, version] = (parsed.method as string).split(\"_\")\n          notificationMethod = [groupName, version, \"watchEvent\"].join(\"_\")\n        }\n        return {\n          type: \"subscribe\",\n          id: parsed.id,\n          onRes: (innerParsed) =>\n            innerParsed.id === parsed.id ? { id: innerParsed.result } : null,\n        }\n      }\n\n      if (STOP_METHODS.has(parsed.method))\n        return {\n          type: \"unsubscribe\",\n          id: Object.values(parsed.params)[0] as string,\n        }\n\n      return null\n    },\n    onNotification(parsed) {\n      if (notificationMethod !== parsed.method) return null\n\n      return terminalEvents.has(parsed.params.result.event)\n        ? {\n            type: \"end\",\n            id: parsed.params.subscription as SubscriptionId,\n          }\n        : null\n    },\n    onAbort: (id) => {\n      onMessage(\n        JSON.stringify({\n          jsonrpc: \"2.0\",\n          method: notificationMethod,\n          params: {\n            subscription: id,\n            result: {\n              event: ABORT_EVENT,\n            },\n          },\n        }),\n      )\n    },\n  }\n}\n","import type {\n  RequestId,\n  SubscriptionId,\n  SubscriptionLogic,\n} from \"../internal-types\"\nimport { chainHeadFollow } from \"./chainHeadFollow\"\nimport { txSubmitAndWatch } from \"./transaction-submit-watch\"\n\nexport const addSubscription = ({\n  onSent,\n  onNotification,\n  onAbort,\n}: SubscriptionLogic) => {\n  const preActive = new Map<\n    RequestId,\n    (parsed: any) => { id: SubscriptionId } | null\n  >()\n  const active = new Set<SubscriptionId>()\n\n  const onDisconnect = () => {\n    preActive.clear()\n    active.clear()\n  }\n\n  return {\n    onSent(parsed: any) {\n      const result = onSent(parsed)\n      if (!result) return\n      if (result.type === \"subscribe\") {\n        preActive.set(result.id, result.onRes)\n      } else {\n        active.delete(result.id)\n      }\n    },\n    onResponse(parsed: any) {\n      const match = preActive.get(parsed.id)?.(parsed)\n      if (!match) return\n      preActive.delete(parsed.id)\n      active.add(match.id)\n    },\n    onNotifiaction(parsed: any) {\n      const result = onNotification(parsed)\n      if (!result) return\n      active.delete(result.id)\n    },\n    onDisconnect,\n    onAbort() {\n      const activeCopy = [...active]\n      onDisconnect()\n      activeCopy.forEach(onAbort)\n    },\n  }\n}\n\nexport const getSubscriptionManager = (onMessage: (msg: string) => void) => {\n  const subscriptions = [chainHeadFollow, txSubmitAndWatch].map((logic) =>\n    addSubscription(logic(onMessage)),\n  )\n\n  return {\n    onSent(parsed: any) {\n      subscriptions.forEach((s) => {\n        s.onSent(parsed)\n      })\n    },\n    onResponse(parsed: any) {\n      subscriptions.forEach((s) => {\n        s.onResponse(parsed)\n      })\n    },\n    onNotifiaction(parsed: any) {\n      subscriptions.forEach((s) => {\n        s.onNotifiaction(parsed)\n      })\n    },\n    onDisconnect() {\n      subscriptions.forEach((s) => s.onDisconnect())\n    },\n    onAbort() {\n      subscriptions.forEach((s) => s.onAbort())\n    },\n  }\n}\n","import type { RequestId } from \"./internal-types\"\nimport type {\n  JsonRpcProvider,\n  JsonRpcConnection,\n} from \"@polkadot-api/json-rpc-provider\"\nimport { getSubscriptionManager } from \"./subscription-manager\"\n\nexport type AsyncJsonRpcProvider = (\n  onMessage: (message: string) => void,\n  onHalt: () => void,\n) => JsonRpcConnection\n\nexport const getSyncProvider =\n  (input: () => Promise<AsyncJsonRpcProvider>): JsonRpcProvider =>\n  (onMessage) => {\n    // if it's null it means that the consumer has called `disconnect`\n    // of it's a Promise it means that it's being respolved, otherwise it's resolved\n    let provider: JsonRpcConnection | Promise<JsonRpcConnection> | null\n\n    let bufferedMessages: Array<string> = []\n    const pendingResponses = new Set<RequestId>()\n    const subscriptionManager = getSubscriptionManager(onMessage)\n\n    const onMessageProxy = (message: string) => {\n      let parsed: any\n      try {\n        parsed = JSON.parse(message)\n      } catch (_) {\n        console.error(`Unable to parse incoming message: ${message}`)\n        return\n      }\n\n      if (parsed.id !== undefined) {\n        pendingResponses.delete(parsed.id)\n        subscriptionManager.onResponse(parsed)\n      } else {\n        subscriptionManager.onNotifiaction(parsed)\n      }\n\n      onMessage(message)\n    }\n\n    const send = (message: string) => {\n      if (!provider) return\n\n      const parsed = JSON.parse(message)\n      subscriptionManager.onSent(parsed)\n      if (parsed.id) pendingResponses.add(parsed.id)\n\n      if (provider instanceof Promise) {\n        bufferedMessages.push(message)\n      } else provider.send(message)\n    }\n\n    const onHalt = (): Promise<JsonRpcConnection> => {\n      bufferedMessages = []\n      const pendingResponsesCopy = [...pendingResponses]\n      pendingResponses.clear()\n\n      // it means that the user has disconnected while the\n      // provider promise was being rejected. Therefore, we must\n      // throw to prevent the Promise from recovering.\n      // The rejection will be handled from the teardown logic.\n      if (!provider) throw null\n\n      // It needs to restart before sending the errored\n      // responses/notifications because the consumer may\n      // react to those by sending new requests\n      const result = start()\n\n      subscriptionManager.onAbort()\n      pendingResponsesCopy.forEach((id) => {\n        onMessage(\n          JSON.stringify({\n            jsonrpc: \"2.0\",\n            error: { code: -32603, message: \"Internal error\" },\n            id,\n          }),\n        )\n      })\n\n      return result\n    }\n\n    const start = (): Promise<JsonRpcConnection> => {\n      const onResolve = (getProvider: AsyncJsonRpcProvider) => {\n        let halted = false\n        const _onHalt = () => {\n          if (halted) return\n          halted = true\n          onHalt()\n        }\n        const _onMessageProxy = (msg: string) 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