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![javascript - Error: .post() requires callback functions but got a [object Undefined] not working - Stack Overflow](https://i.stack.imgur.com/1CxE7.png "javascript - Error: .post() requires callback functions but got a [object Undefined] not working - Stack Overflow")
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![Error: Route.get() requires a callback function but got a [object Object] - YouTube](https://i.ytimg.com/vi/DiQmP-PVI3A/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH8CYAC0AWKAgwIABABGE0gUChlMA8=&rs=AOn4CLDmjMn-EuAbsQ_QibFy-gNc_wFAgA "Error: Route.get() requires a callback function but got a [object Object] - YouTube")
Error: Route.get() requires a callback function but got a [object Object] - YouTube
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![Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub](https://user-images.githubusercontent.com/41604070/221074252-4e6b313f-1566-4f55-a779-390128be6b18.png "Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub")
Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub
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![node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow](https://i.stack.imgur.com/NS2it.png "node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow")
node.js - Route.post() requires a callback function but got a [object Undefined] (even though I have given the callback function) - Stack Overflow
![Error: Route.get() requires a callback function but got a [object Object] - YouTube](https://i.ytimg.com/vi/DiQmP-PVI3A/hq720.jpg?sqp=-oaymwE7CK4FEIIDSFryq4qpAy0IARUAAAAAGAElAADIQj0AgKJD8AEB-AH8CYAC0AWKAgwIABABGE0gUChlMA8=&rs=AOn4CLAgriUb-FtA44TI2gcPZuErw9gSxg "Error: Route.get() requires a callback function but got a [object Object] - YouTube")
Error: Route.get() requires a callback function but got a [object Object] - YouTube
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![javascript - Error: .post() requires callback functions but got a [object Undefined] not working - Stack Overflow](https://i.stack.imgur.com/R3rse.png "javascript - Error: .post() requires callback functions but got a [object Undefined] not working - Stack Overflow")
javascript - Error: .post() requires callback functions but got a [object Undefined] not working - Stack Overflow
![Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub](https://user-images.githubusercontent.com/41604070/221073613-b08188a0-fcae-40b2-8416-8b579c3fba31.png "Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub")
Route.get() requires callback functions but got a [object Undefined] · Issue #40 · gothinkster/node-express-realworld-example-app · GitHub
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Express routing
![Node.js | How to solve: Route.POST() requires callback functions but got a [object Undefined] - DEV Community](https://res.cloudinary.com/practicaldev/image/fetch/s--rA3UqMLF--/c_imagga_scale,f_auto,fl_progressive,h_900,q_auto,w_1600/https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hwllzuar18u1l1y4xgl2.png "Node.js | How to solve: Route.POST() requires callback functions but got a [object Undefined] - DEV Community")