forked from cerc-io/ipld-eth-server
major refactor pt 3
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+16
-16
@@ -24,7 +24,7 @@ All of their data can then be queried with standard [GraphQL](https://graphql.or
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### RPC Subscription Interface
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A direct, real-time subscription to the data being processed by ipfs-blockchain-watcher can be established over WS or IPC through the [Stream](../pkg/watch/api.go#L53) RPC method.
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This method is not chain-specific and each chain-type supports it, it is accessed under the "vdb" namespace rather than a chain-specific namespace. An interface for
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subscribing to this endpoint is provided [here](../pkg/streamer/super_node_streamer.go).
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subscribing to this endpoint is provided [here](../pkg/client/client.go).
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When subscribing to this endpoint, the subscriber provides a set of RLP-encoded subscription parameters. These parameters will be chain-specific, and are used
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by ipfs-blockchain-watcher to filter and return a requested subset of chain data to the subscriber. (e.g. [BTC](../pkg/btc/subscription_config.go), [ETH](../../pkg/eth/subscription_config.go)).
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@@ -48,7 +48,7 @@ An example of how to subscribe to a real-time Ethereum data feed from ipfs-block
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config, _ := eth.NewEthSubscriptionConfig()
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rlpConfig, _ := rlp.EncodeToBytes(config)
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vulcPath := viper.GetString("superNode.ethSubscription.path")
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vulcPath := viper.GetString("watcher.ethSubscription.path")
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rawRPCClient, _ := rpc.Dial(vulcPath)
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rpcClient := client.NewRPCClient(rawRPCClient, vulcPath)
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stream := streamer.NewSuperNodeStreamer(rpcClient)
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@@ -67,32 +67,32 @@ An example of how to subscribe to a real-time Ethereum data feed from ipfs-block
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The .toml file being used to fill the Ethereum subscription config would look something like this:
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```toml
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[superNode]
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[superNode.ethSubscription]
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[watcher]
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[watcher.ethSubscription]
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historicalData = false
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historicalDataOnly = false
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startingBlock = 0
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endingBlock = 0
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wsPath = "ws://127.0.0.1:8080"
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[superNode.ethSubscription.headerFilter]
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[watcher.ethSubscription.headerFilter]
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off = false
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uncles = false
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[superNode.ethSubscription.txFilter]
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[watcher.ethSubscription.txFilter]
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off = false
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src = []
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dst = []
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[superNode.ethSubscription.receiptFilter]
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[watcher.ethSubscription.receiptFilter]
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off = false
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contracts = []
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topic0s = []
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topic1s = []
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topic2s = []
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topic3s = []
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[superNode.ethSubscription.stateFilter]
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[watcher.ethSubscription.stateFilter]
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off = false
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addresses = []
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intermediateNodes = false
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[superNode.ethSubscription.storageFilter]
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[watcher.ethSubscription.storageFilter]
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off = true
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addresses = []
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storageKeys = []
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@@ -131,9 +131,9 @@ in `src` and `dst`, respectively.
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- Setting `off` to true tells ipfs-blockchain-watcher to not send any receipts to the subscriber
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- `topic0s` is a string array which can be filled with event topics we want to filter for,
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if it has any topics then ipfs-blockchain-watcher will only send receipts that contain logs which have that topic0.
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- `contracts` is a string array which can be filled with contract addresses we want to filter for, if it contains any contract addresses the super node will
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- `contracts` is a string array which can be filled with contract addresses we want to filter for, if it contains any contract addresses the watcher will
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only send receipts that correspond to one of those contracts.
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- `matchTrxs` is a bool which when set to true any receipts that correspond to filtered for transactions will be sent by the super node, regardless of whether or not the receipt satisfies the `topics` or `contracts` filters.
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- `matchTrxs` is a bool which when set to true any receipts that correspond to filtered for transactions will be sent by the watcher, regardless of whether or not the receipt satisfies the `topics` or `contracts` filters.
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`ethSubscription.stateFilter` has three sub-options: `off`, `addresses`, and `intermediateNodes`.
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@@ -170,7 +170,7 @@ An example of how to subscribe to a real-time Bitcoin data feed from ipfs-blockc
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config, _ := btc.NewBtcSubscriptionConfig()
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rlpConfig, _ := rlp.EncodeToBytes(config)
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vulcPath := viper.GetString("superNode.btcSubscription.path")
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vulcPath := viper.GetString("watcher.btcSubscription.path")
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rawRPCClient, _ := rpc.Dial(vulcPath)
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rpcClient := client.NewRPCClient(rawRPCClient, vulcPath)
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stream := streamer.NewSuperNodeStreamer(rpcClient)
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@@ -189,16 +189,16 @@ An example of how to subscribe to a real-time Bitcoin data feed from ipfs-blockc
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The .toml file being used to fill the Bitcoin subscription config would look something like this:
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```toml
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[superNode]
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[superNode.btcSubscription]
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[watcher]
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[watcher.btcSubscription]
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historicalData = false
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historicalDataOnly = false
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startingBlock = 0
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endingBlock = 0
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wsPath = "ws://127.0.0.1:8080"
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[superNode.btcSubscription.headerFilter]
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[watcher.btcSubscription.headerFilter]
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off = false
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[superNode.btcSubscription.txFilter]
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[watcher.btcSubscription.txFilter]
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off = false
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segwit = false
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witnessHashes = []
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