feat(rpc): add get_header_by_number rpc

ckb-js · Jul 31, 2019 · 54f9d19 · 54f9d19
1 parent d2a6bbb
commit 54f9d19
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Showing 3 changed files with 17 additions and 2 deletions.
diff --git a/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js b/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js
@@ -40,8 +40,8 @@ describe('ckb-rpc settings and helpers', () => {
     expect(rpc.node).toEqual(node)
   })
 
-  it('has 25 default rpc', () => {
-    expect(rpc.methods.length).toBe(25)
+  it('has 26 default rpc', () => {
+    expect(rpc.methods.length).toBe(26)
   })
 
   it('set node url to http://test.localhost:8114', () => {

diff --git a/packages/ckb-sdk-rpc/__tests__/ckb-rpc.test.js b/packages/ckb-sdk-rpc/__tests__/ckb-rpc.test.js
@@ -118,6 +118,13 @@ describe('ckb-rpc success', () => {
     const header = await rpc.getHeader(zeroBlockHash)
     expect(header).toEqual(zeroBlockHeader)
   })
+
+  it('get header by number', async () => {
+    const zeroBlock = await rpc.getBlockByNumber('0')
+    const zeroBlockHeader = zeroBlock.header
+    const header = await rpc.getHeaderByNumber('0')
+    expect(header).toEqual(zeroBlockHeader)
+  })
 })
 
 describe('send transaction', () => {

diff --git a/packages/ckb-sdk-rpc/src/defaultRPC.ts b/packages/ckb-sdk-rpc/src/defaultRPC.ts
@@ -148,6 +148,12 @@ const defaultRPC: CKBComponents.Method[] = [
     paramsFormatters: [paramsFmts.toHash],
     resultFormatters: resultFmts.toHeader,
   },
+  {
+    name: 'getHeaderByNumber',
+    method: 'get_header_by_number',
+    paramsFormatters: [paramsFmts.toNumber],
+    resultFormatters: resultFmts.toHeader,
+  },
 ]
 
 export class DefaultRPC {
@@ -406,6 +412,8 @@ export class DefaultRPC {
   ) => Promise<null>
 
   public getHeader!: (hash: CKBComponents.Hash) => Promise<CKBComponents.BlockHeader>
+
+  public getHeaderByNumber!: (blockNumber: CKBComponents.BlockNumber) => Promise<CKBComponents.BlockHeader>
 }
 
 export default DefaultRPC