1 files changed, 20 insertions, 7 deletions
diff --git a/src/index.ts b/src/index.ts
index 68cdadf..8e90fbe 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,6 +5,7 @@ import  { promisify } from "util"
 import { exec as cb_exec } from "child_process"
 import tmp from "tmp"
 import fs from "fs"
+import { RunnerApiSubmitRequest, RunnerApiSubmitResponse } from "slam-types"
 
 const exec = promisify(cb_exec)
 const app = new App()
@@ -12,23 +13,35 @@ const app = new App()
 const PORT = Number(process.env.PORT) || 3000
 console.log(`Serving API on port ${PORT}`)
 
+const interpretFile = async (sourceFile: string) => {
+  const cmd = `./interpreter ${sourceFile}`
+  try {
+    const result = await exec(cmd)
+    return result.stdout
+  } catch (err) {
+    console.error(err)
+    return err.stdout // the interpreter only outputs to stdout
+  }
+}
+
 app
   .use(logger({
     timestamp: { format: "YYYY-MM-DDTHH:mm:ssZ" },
   }))
   .use(json())
-  .post("/submit", async (req, res) => {
-    if (!req.body || !req.body.source) {
+  .post(RunnerApiSubmitRequest.path, async (req, res) => {
+    const body: RunnerApiSubmitRequest.Body | undefined = req.body
+    if (!body || !body.source) {
       return res.sendStatus(400)
     }
 
-    const { name: sourceFile } = tmp.fileSync()
-    fs.writeFileSync(sourceFile, req.body.source)
+    const { name: sourceFile } = tmp.fileSync() as { name: string }
+    fs.writeFileSync(sourceFile, body.source)
 
-    const cmd = `./interpreter ${sourceFile}`
-    const result = await exec(cmd)
+    const result = await interpretFile(sourceFile)
     fs.rmSync(sourceFile)
 
-    res.send({ result })
+    const response: RunnerApiSubmitResponse.Body = { result }
+    res.send(response)
   })
   .listen(PORT)