gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

node: refactor package node (#21105)

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

25
cmd/faucet/faucet.go
View File

@ -235,23 +235,20 @@ func newFaucet(genesis *core.Genesis, port int, enodes []*discv5.Node, network u
if err != nil {
return nil, err
}
// Assemble the Ethereum light client protocol
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
cfg := eth.DefaultConfig
cfg.SyncMode = downloader.LightSync
cfg.NetworkId = network
cfg.Genesis = genesis
return les.New(ctx, &cfg)
}); err != nil {
return nil, err
cfg := eth.DefaultConfig
cfg.SyncMode = downloader.LightSync
cfg.NetworkId = network
cfg.Genesis = genesis
lesBackend, err := les.New(stack, &cfg)
if err != nil {
return nil, fmt.Errorf("Failed to register the Ethereum service: %w", err)
}
// Assemble the ethstats monitoring and reporting service'
if stats != "" {
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
var serv *les.LightEthereum
ctx.Service(&serv)
return ethstats.New(stats, nil, serv)
}); err != nil {
if err := ethstats.New(stack, lesBackend.ApiBackend, lesBackend.Engine(), stats); err != nil {
return nil, err
}
}
@ -268,7 +265,7 @@ func newFaucet(genesis *core.Genesis, port int, enodes []*discv5.Node, network u
// Attach to the client and retrieve and interesting metadatas
api, err := stack.Attach()
if err != nil {
stack.Stop()
stack.Close()
return nil, err
}
client := ethclient.NewClient(api)