gaspersic/go-ethereum
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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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29
ethclient/ethclient_test.go
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@ -187,17 +187,18 @@ var (
func newTestBackend(t *testing.T) (*node.Node, []*types.Block) {
// Generate test chain.
genesis, blocks := generateTestChain()
// Start Ethereum service.
var ethservice *eth.Ethereum
// Create node
n, err := node.New(&node.Config{})
n.Register(func(ctx *node.ServiceContext) (node.Service, error) {
config := &eth.Config{Genesis: genesis}
config.Ethash.PowMode = ethash.ModeFake
ethservice, err = eth.New(ctx, config)
return ethservice, err
})
if err != nil {
t.Fatalf("can't create new node: %v", err)
}
// Create Ethereum Service
config := &eth.Config{Genesis: genesis}
config.Ethash.PowMode = ethash.ModeFake
ethservice, err := eth.New(n, config)
if err != nil {
t.Fatalf("can't create new ethereum service: %v", err)
}
// Import the test chain.
if err := n.Start(); err != nil {
t.Fatalf("can't start test node: %v", err)
@ -231,7 +232,7 @@ func generateTestChain() (*core.Genesis, []*types.Block) {
func TestHeader(t *testing.T) {
backend, chain := newTestBackend(t)
client, _ := backend.Attach()
defer backend.Stop()
defer backend.Close()
defer client.Close()
tests := map[string]struct {
@ -275,7 +276,7 @@ func TestHeader(t *testing.T) {
func TestBalanceAt(t *testing.T) {
backend, _ := newTestBackend(t)
client, _ := backend.Attach()
defer backend.Stop()
defer backend.Close()
defer client.Close()
tests := map[string]struct {
@ -321,7 +322,7 @@ func TestBalanceAt(t *testing.T) {
func TestTransactionInBlockInterrupted(t *testing.T) {
backend, _ := newTestBackend(t)
client, _ := backend.Attach()
defer backend.Stop()
defer backend.Close()
defer client.Close()
ec := NewClient(client)
@ -339,7 +340,7 @@ func TestTransactionInBlockInterrupted(t *testing.T) {
func TestChainID(t *testing.T) {
backend, _ := newTestBackend(t)
client, _ := backend.Attach()
defer backend.Stop()
defer backend.Close()
defer client.Close()
ec := NewClient(client)