Error message: "The toJSON method is not found for the item in the nested array of

Question

Error message: "The toJSON method is not found for the item in the nested array of

Encountering an issue with NSwag in my Angular project where it throws an error when attempting to send data if the object contains a nested array of objects like this:

export interface IJobAdDto {
    mainJobAd: JobAddDetailsDto;
    differentLanguageJobAds: JobAddDetailsDto[] | undefined;}

https://i.stack.imgur.com/lxqLw.png

However, if I "cast it" to a new object of the correct type, it works as expected: https://i.stack.imgur.com/mI8Vt.png

The question is, how can I modify NSwag to implement this change automatically, or how can I extend the method/class to prevent it from being overwritten each time it's generated?

I have used NSwag (version 13.9.4.0) to generate the client code.

Error: https://i.stack.imgur.com/N6GhF.png

angular typescript api swagger nswag

Answer 1

Answer №1

Encountered a problem recently.

The solution that worked for me was instantiating a new object.

const newObj = new MyObject({ key: val });

Trying this approach did not yield the desired results:

const newObj = { key: val } as MyObject;

Answer 2

Encountered a problem recently.

The solution that worked for me was instantiating a new object.

const newObj = new MyObject({ key: val });

Trying this approach did not yield the desired results:

const newObj = { key: val } as MyObject;

Answer 3

Answer №2

To prevent overwriting every single time, one approach is to separate the DTO from the client.

Place the DTO in the service class defined by NSwag: https://i.stack.imgur.com/KZIcw.png

Then, exclude the type names (dtos) that you do not want NSwag to generate: https://i.stack.imgur.com/jrgN2.png

Any necessary changes can be made there. One drawback is that if the model changes, remember to update the extension file.

Answer 4

To prevent overwriting every single time, one approach is to separate the DTO from the client.

Place the DTO in the service class defined by NSwag: https://i.stack.imgur.com/KZIcw.png

Then, exclude the type names (dtos) that you do not want NSwag to generate: https://i.stack.imgur.com/jrgN2.png

Any necessary changes can be made there. One drawback is that if the model changes, remember to update the extension file.

Error message: "The toJSON method is not found for the item in the nested array of

Answer №1

Answer №2

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