fix(node errors): construct error message by server response

src/node.js

@@ -76,7 +76,15 @@ const Node = AsyncInit.compose({
     if (!url) throw new Error('"url" required')
     this.url = url.replace(/\/$/, '')
     this.internalUrl = internalUrl ? internalUrl.replace(/\/$/, '') : this.url
-    const client = await genSwaggerClient(`${this.url}/api?oas3`, { internalUrl: this.internalUrl })
+    const client = await genSwaggerClient(`${this.url}/api?oas3`, {
+      internalUrl: this.internalUrl,
+      responseInterceptor: response => {
+        if (response.ok) return
+        return Object.assign(response, {
+          statusText: `${new URL(response.url).pathname.slice(1)} error: ` + response.body.reason
+        })
+      }
+    })
     this.version = client.spec.info.version
     if (
       !semverSatisfies(this.version, NODE_GE_VERSION, NODE_LT_VERSION) &&

test/integration/node.js

@@ -51,6 +51,11 @@ describe('Node client', function () {
     )
   })
 
+  it('throws clear exceptions when can\'t get transaction by hash', async () => {
+    await expect(node.api.getTransactionByHash('th_test'))
+      .to.be.rejectedWith('v3/transactions/th_test error: Invalid hash')
+  })
+
   describe('Node Pool', () => {
     it('throw error on invalid node object', async () => {
       const nodes = await NodePool()