[Draft] clients/stellarcore: Add support for new Protocol 23 HTTP endpoints

clients/stellarcore/client.go

@@ -156,6 +156,21 @@ func (c *Client) GetLedgerEntryRaw(ctx context.Context, ledgerSeq uint32, keys .
 	return resp, c.makeLedgerKeyRequest(ctx, &resp, "getledgerentryraw", ledgerSeq, keys...)
 }
 
+func (c *Client) GetLedgerEntries(ctx context.Context, ledgerSeq uint32, keys ...xdr.LedgerKey) (*proto.GetLedgerEntriesResponse, error) {
+	var resp *proto.GetLedgerEntriesResponse
+	return resp, c.makeLedgerKeyRequest(ctx, resp, "getledgerentries", ledgerSeq, keys...)
+}
+
+func (c *Client) GetInvocationProof(ctx context.Context, ledgerSeq uint32, keys ...xdr.LedgerKey) (*proto.ProofResponse, error) {
+	var resp *proto.ProofResponse
+	return resp, c.makeLedgerKeyRequest(ctx, resp, "getinvocationproof", ledgerSeq, keys...)
+}
+
+func (c *Client) GetRestorationProof(ctx context.Context, ledgerSeq uint32, keys ...xdr.LedgerKey) (*proto.ProofResponse, error) {
+	var resp *proto.ProofResponse
+	return resp, c.makeLedgerKeyRequest(ctx, resp, "getrestorationproof", ledgerSeq, keys...)
+}
+
 // SubmitTransaction calls the `tx` command on the connected stellar core with the provided envelope
 func (c *Client) SubmitTransaction(ctx context.Context, envelope string) (resp *proto.TXResponse, err error) {
 	q := url.Values{}

protocols/stellarcore/getledgerentry_response.go

@@ -0,0 +1,20 @@
+package stellarcore
+
+const (
+	LedgerEntryStateLive              = "live"
+	LedgerEntryStateNewProofless      = "new_entry_no_proof"
+	LedgerEntryStateNewProof          = "new_entry_proof"
+	LedgerEntryStateArchivedProofless = "archived_no_proof"
+	LedgerEntryStateArchivedProof     = "archived_proof"
+)
+
+// GetLedgerEntriesResponse is the structure of Stellar Core's /getledgerentry
+type GetLedgerEntriesResponse struct {
+	Ledger  uint32                     `json:"ledger"`
+	Entries []RawLedgerEntriesResponse `json:"entries"`
+}
+
+type RawLedgerEntriesResponse struct {
+	Entry string `json:"le"`    // base64-encoded xdr.LedgerEntry
+	State string `json:"state"` // one of the above states
+}

protocols/stellarcore/proof_response.go

@@ -0,0 +1,8 @@
+package stellarcore
+
+// ProofResponse is the structure of Stellar Core's /getrestorationproof and
+// /getinvocationproof
+type ProofResponse struct {
+	Ledger uint32 `json:"ledger"`
+	Proof  string `json:"proof,omitempty"`
+}