3 files changed, 25 insertions, 1 deletions
diff --git a/lambda-calcul/javascript/index.js b/lambda-calcul/javascript/index.js
index 03bcaf6..e06ac4d 100644
--- a/lambda-calcul/javascript/index.js
+++ b/lambda-calcul/javascript/index.js
@@ -8,4 +8,6 @@ client = LC.newClient({
 });
 
 client.start()
-  .then((token) => console.log(`${playerName} has registered with token ${token}`));
+  .then((token) => console.log(`${playerName} has registered with token ${token}`) || token)
+  .then(client.nextChallenge)
+  .then((challenge) => console.log(`Next challenge: ${challenge}`));
diff --git a/lambda-calcul/javascript/src/client.js b/lambda-calcul/javascript/src/client.js
index d2de0d4..d046187 100644
--- a/lambda-calcul/javascript/src/client.js
+++ b/lambda-calcul/javascript/src/client.js
@@ -1,6 +1,11 @@
 const axios = require('axios');
 
 const newClient = ({ playerName, challengerURL }) => {
+  const nextChallenge = (token) => axios ({
+    url: `${challengerURL}/api/challenge?token=${token}`,
+  })
+    .then(({ data: { expr } }) => expr);
+
   const start = () => axios({
     method: 'POST',
     url: `${challengerURL}/api/register`,
@@ -10,6 +15,7 @@ const newClient = ({ playerName, challengerURL }) => {
     .then(({ data }) => data);
 
   return {
+    nextChallenge,
     start,
   };
 };
diff --git a/lambda-calcul/javascript/test/client.test.js b/lambda-calcul/javascript/test/client.test.js
index 8c4f98f..5fcc42c 100644
--- a/lambda-calcul/javascript/test/client.test.js
+++ b/lambda-calcul/javascript/test/client.test.js
@@ -38,4 +38,20 @@ describe('λ-calculator', () => {
     return client.start()
       .then((token) => expect(token).toBe('SomeToken'));
   });
+
+  it('retrieves next challenge', () => {
+
+    challenger.on('request', (request, response) => {
+      expect(request.method).toBe('GET');
+      expect(request.url).toBe('/api/challenge?token=SomeToken');
+      response.end(JSON.stringify({ expr: 'SomeChallenge' }));
+    });
+
+    const client = LC.newClient({
+      playerName: 'John Smith',
+      challengerURL: `http://localhost:${port}`,
+    });
+    return client.nextChallenge('SomeToken')
+      .then((challenge) => expect(challenge).toBe('SomeChallenge'));
+  });
 });