Get Pull Request Diff

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Authentication

Authorization: Bearer <your-jwt-token>

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Path Parameters

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Response

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Diff Format

• Lines starting with --- indicate the original file
• Lines starting with +++ indicate the modified file
• Lines starting with @@ show the line numbers and context
• Lines starting with - show removed lines
• Lines starting with + show added lines
• Lines without prefixes are context lines (unchanged)

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Example Request

curl -X GET "https://api.diffy.ai/github/diff/octocat/Hello-World/1" \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -H "Content-Type: application/json"

const response = await fetch(
  'https://api.diffy.ai/github/diff/octocat/Hello-World/1',
  {
    method: 'GET',
    headers: {
      'Authorization': 'Bearer YOUR_JWT_TOKEN',
      'Content-Type': 'application/json'
    }
  }
);

const diff = await response.text();
console.log(diff);

import requests

url = "https://api.diffy.ai/github/diff/octocat/Hello-World/1"
headers = {
    "Authorization": "Bearer YOUR_JWT_TOKEN",
    "Content-Type": "application/json"
}

response = requests.get(url, headers=headers)
diff = response.text
print(diff)

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Example Response

diff --git a/src/app.ts b/src/app.ts
index 1234567..abcdefg 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -1,8 +1,12 @@
 import express from 'express';
+import helmet from 'helmet';
 
 const app = express();
 const PORT = process.env.PORT || 3000;
 
+// Add security middleware
+app.use(helmet());
+
 app.use(express.json());
 
 app.get('/', (req, res) => {
@@ -10,6 +14,10 @@
   res.json({ message: 'Hello World!' });
 });
 
+app.get('/health', (req, res) => {
+  res.json({ status: 'ok' });
+});
+
 app.listen(PORT, () => {
   console.log(`Server running on port ${PORT}`);
 });
diff --git a/package.json b/package.json
index 9876543..fedcba9 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
   "dependencies": {
     "express": "^4.18.0",
+    "helmet": "^7.0.0",
     "dotenv": "^16.0.0"
   },
   "devDependencies": {

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Parsing the Diff

• File paths: Found after --- and +++ markers
• Line numbers: Found in @@ markers (e.g., @@ -1,8 +1,12 @@)
  • -1,8 means starting at line 1, 8 lines in the original file
  • +1,12 means starting at line 1, 12 lines in the modified file
• Changes: Lines prefixed with - (deletions) and + (additions)
• Context: Unprefixed lines showing surrounding code

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Use Cases

• Code Review: Display changes for manual review
• AI Analysis: Parse diff to analyze code changes programmatically
• Change Detection: Identify what files and lines were modified
• Diff Visualization: Build custom diff viewers
• Automated Testing: Determine which tests to run based on changes

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Error Responses

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Notes

• The diff is returned in the same format as GitHub’s native diff view
• Large diffs may take longer to process
• Binary file changes will show as “Binary files differ” without detailed changes
• The diff includes all commits in the pull request, not just the latest commit