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node: refactor package node (#21105)

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This PR significantly changes the APIs for instantiating Ethereum nodes in
a Go program. The new APIs are not backwards-compatible, but we feel that
this is made up for by the much simpler way of registering services on
node.Node. You can find more information and rationale in the design
document: https://gist.github.com/renaynay/5bec2de19fde66f4d04c535fd24f0775.

There is also a new feature in Node's Go API: it is now possible to
register arbitrary handlers on the user-facing HTTP server. In geth, this
facility is used to enable GraphQL.

There is a single minor change relevant for geth users in this PR: The
GraphQL API is no longer available separately from the JSON-RPC HTTP
server. If you want GraphQL, you need to enable it using the
./geth --http --graphql flag combination.

The --graphql.port and --graphql.addr flags are no longer available.
This commit is contained in:
rene
2020-08-03 19:40:46 +02:00
committed by GitHub
parent b2b14e6ce3
commit c0c01612e9
63 changed files with 2606 additions and 2887 deletions
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16
cmd/geth/consolecmd.go
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@ -78,12 +78,12 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/JavaScript-Cons
func localConsole(ctx *cli.Context) error {
// Create and start the node based on the CLI flags
prepare(ctx)
node := makeFullNode(ctx)
startNode(ctx, node)
defer node.Close()
stack, backend := makeFullNode(ctx)
startNode(ctx, stack, backend)
defer stack.Close()
// Attach to the newly started node and start the JavaScript console
client, err := node.Attach()
client, err := stack.Attach()
if err != nil {
utils.Fatalf("Failed to attach to the inproc geth: %v", err)
}
@ -190,12 +190,12 @@ func dialRPC(endpoint string) (*rpc.Client, error) {
// everything down.
func ephemeralConsole(ctx *cli.Context) error {
// Create and start the node based on the CLI flags
node := makeFullNode(ctx)
startNode(ctx, node)
defer node.Close()
stack, backend := makeFullNode(ctx)
startNode(ctx, stack, backend)
defer stack.Close()
// Attach to the newly started node and start the JavaScript console
client, err := node.Attach()
client, err := stack.Attach()
if err != nil {
utils.Fatalf("Failed to attach to the inproc geth: %v", err)
}