Update server/status.js

Add transaction lookup API

server/status.js

@@ -15,6 +15,9 @@ const {
   scriptPubKeyToScripthash,
   addressToScripthash,
 } = require('./bitcoin-address')
+const {
+  getTransaction,
+} = require('./transactions')
 
 const port = 8080
 const fulcrumTimeoutMs = 3000
@@ -663,6 +666,54 @@ const server = http.createServer(async (req, res) => {
     return
   }
 
+  if (
+    req.method === 'GET' &&
+    req.url.startsWith('/api/transactions/')
+  ) {
+    if (!isValidSession(req)) {
+      res.writeHead(401, {
+        'Content-Type': 'application/json',
+      })
+
+      res.end(
+        JSON.stringify({
+          error: 'Authentication required',
+        }),
+      )
+
+      return
+    }
+
+    const txid = decodeURIComponent(
+      req.url.slice('/api/transactions/'.length),
+    )
+
+    try {
+      const transaction = await getTransaction(txid)
+
+      res.writeHead(200, {
+        'Content-Type': 'application/json',
+      })
+
+      res.end(JSON.stringify(transaction))
+    } catch (error) {
+      res.writeHead(400, {
+        'Content-Type': 'application/json',
+      })
+
+      res.end(
+        JSON.stringify({
+          error:
+            error instanceof Error
+              ? error.message
+              : 'Failed to get transaction',
+        }),
+      )
+    }
+
+    return
+  }
+
   res.writeHead(404)
   res.end('Not found')
 })