Dev Proxy
@devproxy.bsky.social
Dev Proxy is an API simulator that helps you effortlessly test your app beyond the happy path:
- mock APIs
- simulate API behaviors like errors, throttling or rate limiting
- emulate latency
- generate OpenAPI specs
...and more!
https://aka.ms/devproxy
- mock APIs
- simulate API behaviors like errors, throttling or rate limiting
- emulate latency
- generate OpenAPI specs
...and more!
https://aka.ms/devproxy
Pinned
Dev Proxy
@devproxy.bsky.social
· Aug 7
Dev Proxy v1.0 with new features for building robust AI-powered apps - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.0, with new language model-specific testing capabilities to help developers build more reliable AI-powered applications by simulating real-world scenarios and tracking resourc...
devblogs.microsoft.com
We’re excited to announce Dev Proxy v1.0, with new language model-specific testing capabilities. Check it out! devblogs.microsoft.com/microsoft365...
Using Azure DevOps and want to simulate behaviors in your pipelines? Yes, you can! Integrate Dev Proxy and automate API simulation, logging, and reporting, speeding builds and surfacing errors early. Catch integration issues and improve quality.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Use Dev Proxy with Azure Pipelines - Dev Proxy
How to use Dev Proxy with Azure Pipelines.
learn.microsoft.com
November 6, 2025 at 12:32 PM
Using Azure DevOps and want to simulate behaviors in your pipelines? Yes, you can! Integrate Dev Proxy and automate API simulation, logging, and reporting, speeding builds and surfacing errors early. Catch integration issues and improve quality.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Building solutions using SharePoint Framework (SPFx)? Use Dev Proxy to test your API integrations. Dev Proxy intercepts and simulates SPFx API calls, so you test every scenario without changing code. Find issues early and ship robust SPFx apps faster!
Learn more: learn.microsoft.com/microsoft-cl...
Learn more: learn.microsoft.com/microsoft-cl...
Use Dev Proxy with SharePoint Framework (SPFx) solutions - Dev Proxy
How to use Dev Proxy with SharePoint Framework (SPFx) solutions
learn.microsoft.com
November 4, 2025 at 8:57 AM
Building solutions using SharePoint Framework (SPFx)? Use Dev Proxy to test your API integrations. Dev Proxy intercepts and simulates SPFx API calls, so you test every scenario without changing code. Find issues early and ship robust SPFx apps faster!
Learn more: learn.microsoft.com/microsoft-cl...
Learn more: learn.microsoft.com/microsoft-cl...
Reposted by Dev Proxy
Used OpenAPI spec generation just yesterday. 👨🍳👄
Dev Proxy v1.3.0 is out, with:
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
Dev Proxy v1.3 with exporting to HAR, LLM usage tracking, and enhanced permissions analysis - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.3 with new plugins for inspecting and debugging API requests, along with enhanced permissions analysis and improved OpenAPI spec generation for complex testing scenarios.
devblogs.microsoft.com
October 30, 2025 at 2:10 PM
Used OpenAPI spec generation just yesterday. 👨🍳👄
Dev Proxy v1.3.0 is out, with:
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
Dev Proxy v1.3 with exporting to HAR, LLM usage tracking, and enhanced permissions analysis - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.3 with new plugins for inspecting and debugging API requests, along with enhanced permissions analysis and improved OpenAPI spec generation for complex testing scenarios.
devblogs.microsoft.com
October 30, 2025 at 12:08 PM
Dev Proxy v1.3.0 is out, with:
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
- HAR file generation for universal debugging
- LLM usage tracking for cost optimization,
- enhanced permissions analysis
- improved OpenAPI spec generation
Check it out: devblogs.microsoft.com/microsoft365...
Building applications on Node.js? Use Dev Proxy to speed up API integration and test how robust it is.
Get started: learn.microsoft.com/microsoft-cl...
Get started: learn.microsoft.com/microsoft-cl...
Use Dev Proxy with Node.js applications - Dev Proxy
How to use Dev Proxy with Node.js applications
learn.microsoft.com
October 24, 2025 at 7:33 AM
Building applications on Node.js? Use Dev Proxy to speed up API integration and test how robust it is.
Get started: learn.microsoft.com/microsoft-cl...
Get started: learn.microsoft.com/microsoft-cl...
Building apps using .NET Aspire? Integrate Dev Proxy and easily verify the resilience of your app!
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
October 21, 2025 at 9:42 AM
Building apps using .NET Aspire? Integrate Dev Proxy and easily verify the resilience of your app!
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Need to test the resilience of your .NET Azure Functions? Look no further! Try Dev Proxy, and test your functions without any code changes.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Use Dev Proxy with .NET Azure Functions - Dev Proxy
How to use Dev Proxy with .NET Azure Functions
learn.microsoft.com
October 17, 2025 at 9:06 AM
Need to test the resilience of your .NET Azure Functions? Look no further! Try Dev Proxy, and test your functions without any code changes.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Testing .NET app API errors is tough and time-consuming. Dev Proxy, using system proxy settings, intercepts HTTP requests with no code changes. Simulate errors easily, validate handling early, and build robust apps fast.
Test it on your next project: learn.microsoft.com/microsoft-cl...
Test it on your next project: learn.microsoft.com/microsoft-cl...
October 15, 2025 at 7:08 AM
Testing .NET app API errors is tough and time-consuming. Dev Proxy, using system proxy settings, intercepts HTTP requests with no code changes. Simulate errors easily, validate handling early, and build robust apps fast.
Test it on your next project: learn.microsoft.com/microsoft-cl...
Test it on your next project: learn.microsoft.com/microsoft-cl...
Did you know that you can build your own Dev Proxy plugins?
Dev Proxy is versatile and caters to many scenarios. But if you find something that it doesn't support, you can fix it yourself. With just a couple of lines of code, add the missing functionality for you and your colleagues!
Dev Proxy is versatile and caters to many scenarios. But if you find something that it doesn't support, you can fix it yourself. With just a couple of lines of code, add the missing functionality for you and your colleagues!
October 13, 2025 at 7:17 AM
Did you know that you can build your own Dev Proxy plugins?
Dev Proxy is versatile and caters to many scenarios. But if you find something that it doesn't support, you can fix it yourself. With just a couple of lines of code, add the missing functionality for you and your colleagues!
Dev Proxy is versatile and caters to many scenarios. But if you find something that it doesn't support, you can fix it yourself. With just a couple of lines of code, add the missing functionality for you and your colleagues!
Need to debug API requests and responses? Dev Proxy integrates with Chrome DevTools, surfacing live requests and events in one workspace for easy filtering, analysis, and faster debugging without hunting through logs. Must-have!
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
October 10, 2025 at 7:18 AM
Need to debug API requests and responses? Dev Proxy integrates with Chrome DevTools, surfacing live requests and events in one workspace for easy filtering, analysis, and faster debugging without hunting through logs. Must-have!
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Testing APIs is noisy when filtering only by URL-irrelevant requests slow you down and hide integration issues. Dev Proxy lets you filter by specific headers and values for focused debugging. Get cleaner logs, diagnose faster, and ship better apps.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Intercept requests with specific headers - Dev Proxy
How to configure Dev Proxy to only intercept requests with specific headers
learn.microsoft.com
October 9, 2025 at 5:56 AM
Testing APIs is noisy when filtering only by URL-irrelevant requests slow you down and hide integration issues. Dev Proxy lets you filter by specific headers and values for focused debugging. Get cleaner logs, diagnose faster, and ship better apps.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Capture only the traffic you need. Get the relevant information faster. Dev Proxy lets you intercept only specific processes' API requests by name or PID. Streamline debugging-no noise, just precise, focused integration testing.
Here's how: learn.microsoft.com/microsoft-cl...
Here's how: learn.microsoft.com/microsoft-cl...
Intercept requests from specific processes - Dev Proxy
How to configure the proxy to intercept requests only from specific processes
learn.microsoft.com
October 1, 2025 at 7:11 AM
Capture only the traffic you need. Get the relevant information faster. Dev Proxy lets you intercept only specific processes' API requests by name or PID. Streamline debugging-no noise, just precise, focused integration testing.
Here's how: learn.microsoft.com/microsoft-cl...
Here's how: learn.microsoft.com/microsoft-cl...
Need to rewrite HTTP requests to HTTPS or apply some other changes? Don't get stuck!
Dev Proxy lets you set rewrite rules in a simple JSON file, applying them to all API calls-no code changes, complex proxies, or manual work. Focus on features!
Check it out: learn.microsoft.com/microsoft-cl...
Dev Proxy lets you set rewrite rules in a simple JSON file, applying them to all API calls-no code changes, complex proxies, or manual work. Focus on features!
Check it out: learn.microsoft.com/microsoft-cl...
September 30, 2025 at 8:32 AM
Need to rewrite HTTP requests to HTTPS or apply some other changes? Don't get stuck!
Dev Proxy lets you set rewrite rules in a simple JSON file, applying them to all API calls-no code changes, complex proxies, or manual work. Focus on features!
Check it out: learn.microsoft.com/microsoft-cl...
Dev Proxy lets you set rewrite rules in a simple JSON file, applying them to all API calls-no code changes, complex proxies, or manual work. Focus on features!
Check it out: learn.microsoft.com/microsoft-cl...
Missing the `client-request-id` in Microsoft Graph requests hinders traceability and troubleshooting. Dev Proxy detects its absence, giving real-time guidance so you meet best practices, simplify debugging, and build reliable integrations.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 29, 2025 at 7:20 AM
Missing the `client-request-id` in Microsoft Graph requests hinders traceability and troubleshooting. Dev Proxy detects its absence, giving real-time guidance so you meet best practices, simplify debugging, and build reliable integrations.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Omitting `$select` in Microsoft Graph API calls causes large payloads and slow apps. GraphSelectGuidancePlugin flags missing `$select` in real time, helping optimize queries early. Use Dev Proxy to boost app performance and prevent inefficiencies.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 26, 2025 at 11:19 AM
Omitting `$select` in Microsoft Graph API calls causes large payloads and slow apps. GraphSelectGuidancePlugin flags missing `$select` in real time, helping optimize queries early. Use Dev Proxy to boost app performance and prevent inefficiencies.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Dev Proxy v1.2 is out with mock response mirroring and improve performance!
Check it out: devblogs.microsoft.com/microsoft365...
Check it out: devblogs.microsoft.com/microsoft365...
Dev Proxy v1.2 with mock response mirroring and improved performance - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.2 with mock response mirroring capabilities that make API simulation more realistic.
devblogs.microsoft.com
September 25, 2025 at 6:58 AM
Dev Proxy v1.2 is out with mock response mirroring and improve performance!
Check it out: devblogs.microsoft.com/microsoft365...
Check it out: devblogs.microsoft.com/microsoft365...
Catch beta API usage before your app ships!
Using Microsoft Graph beta endpoints in production risks instability and unexpected changes. Dev Proxy flags beta usage, preventing reliance on unstable APIs and helping ensure code reliability.
Check it out: learn.microsoft.com/microsoft-cl...
Using Microsoft Graph beta endpoints in production risks instability and unexpected changes. Dev Proxy flags beta usage, preventing reliance on unstable APIs and helping ensure code reliability.
Check it out: learn.microsoft.com/microsoft-cl...
September 23, 2025 at 12:34 PM
Catch beta API usage before your app ships!
Using Microsoft Graph beta endpoints in production risks instability and unexpected changes. Dev Proxy flags beta usage, preventing reliance on unstable APIs and helping ensure code reliability.
Check it out: learn.microsoft.com/microsoft-cl...
Using Microsoft Graph beta endpoints in production risks instability and unexpected changes. Dev Proxy flags beta usage, preventing reliance on unstable APIs and helping ensure code reliability.
Check it out: learn.microsoft.com/microsoft-cl...
Need a report of all APIs that your app is using? Dev Proxy's ExecutionSummaryPlugin auto-summarizes API requests by URL or type, giving instant visibility into the resources that your app is using.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 18, 2025 at 5:49 AM
Need a report of all APIs that your app is using? Dev Proxy's ExecutionSummaryPlugin auto-summarizes API requests by URL or type, giving instant visibility into the resources that your app is using.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Need to find out what URLs your application is sending requests to? Use the Dev Proxy `--discover` option!
Learn more: learn.microsoft.com/microsoft-cl...
Learn more: learn.microsoft.com/microsoft-cl...
Discover URLs to watch - Dev Proxy
How to find out which URLs your app is calling and how to configure the Dev Proxy to simulate behaviors for them.
learn.microsoft.com
September 17, 2025 at 6:42 AM
Need to find out what URLs your application is sending requests to? Use the Dev Proxy `--discover` option!
Learn more: learn.microsoft.com/microsoft-cl...
Learn more: learn.microsoft.com/microsoft-cl...
HTTP files are awesome for quickly testing APIs. Dev Proxy auto-generates HTTP files from API traffic. This saves time, boosts security, and makes sharing reproducible API scenarios easy for development and collaboration.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 16, 2025 at 6:47 AM
HTTP files are awesome for quickly testing APIs. Dev Proxy auto-generates HTTP files from API traffic. This saves time, boosts security, and makes sharing reproducible API scenarios easy for development and collaboration.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
TypeSpec is a game changer for working with APIs. But how to build it? Dev Proxy records real API traffic and auto-generates accurate TypeSpec files-no manual contract writing. Get reliable, up-to-date specs fast for smoother, faster integration.
Try it: learn.microsoft.com/microsoft-cl...
Try it: learn.microsoft.com/microsoft-cl...
September 15, 2025 at 7:07 AM
TypeSpec is a game changer for working with APIs. But how to build it? Dev Proxy records real API traffic and auto-generates accurate TypeSpec files-no manual contract writing. Get reliable, up-to-date specs fast for smoother, faster integration.
Try it: learn.microsoft.com/microsoft-cl...
Try it: learn.microsoft.com/microsoft-cl...
Need an API spec? Dev Proxy auto-generates accurate OpenAPI specs from real API traffic, keeping docs current and integration smooth-no manual coding. Probably the fastest way to create a spec out there.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 11, 2025 at 8:16 AM
Need an API spec? Dev Proxy auto-generates accurate OpenAPI specs from real API traffic, keeping docs current and integration smooth-no manual coding. Probably the fastest way to create a spec out there.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Hardcoded tokens or skipped auth checks cause unreliable authentication simulation, slowing you down. Dev Proxy's AuthPlugin simulates real API key/OAuth2 flows, enforcing auth scenarios. Test auth reliably and launch with confidence.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
September 10, 2025 at 6:48 AM
Hardcoded tokens or skipped auth checks cause unreliable authentication simulation, slowing you down. Dev Proxy's AuthPlugin simulates real API key/OAuth2 flows, enforcing auth scenarios. Test auth reliably and launch with confidence.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Need JWT for testing? Dev Proxy's got your back! Quickly create a JWT with your specific claims.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
jwt create - Dev Proxy
jwt create command reference
learn.microsoft.com
September 9, 2025 at 9:13 AM
Need JWT for testing? Dev Proxy's got your back! Quickly create a JWT with your specific claims.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Did you know that you can control Dev Proxy programmatically using its API? Invaluable if you want to integrate it in automation scenarios.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...
Proxy API - Dev Proxy
Overview of the Dev Proxy API
learn.microsoft.com
September 5, 2025 at 7:45 AM
Did you know that you can control Dev Proxy programmatically using its API? Invaluable if you want to integrate it in automation scenarios.
Check it out: learn.microsoft.com/microsoft-cl...
Check it out: learn.microsoft.com/microsoft-cl...