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Cannot determine output type of decimal (prisma decimal) parameter

See original GitHub issue

If we have decimal type in model, nest server fails to start stating that it cannot determine output type of decimal parameter.

I am using classes generated by this packages.

Any guidance will be appreciated.

P.S. Awesome work btw!

Issue Analytics

State:
Created a year ago
Comments:9 (4 by maintainers)

Top GitHub Comments

1reaction

unlightcommented, Mar 30, 2022

Typescript does not complain about anything, looks like decimal input/output class is missing decorators as nestjs complains about it.

yes, usually it happends when package versions mismmatch or missing package or missing reflect-metadata package.

Please let me know how i can provide more information regarding this issue.

I need steps to reproduce the issue - minimal repo with prisma schema, example nest application

You can fork https://github.com/unlight/prisma-nestjs-graphql and make changes in example application (see folder example)

0reactions

unlightcommented, Mar 30, 2022

My steps:

git clone https://github.com/mubaidr/prisma-nestjs-graphql.git
cd prisma-nestjs-graphql
npm i
npm run regen
set DATABASE_URL=postgresql://postgres@127.0.0.1:5432/prisma_nest
npm run example

[INFO] 22:09:58 ts-node-dev ver. 1.1.8 (using ts-node ver. 9.1.1, typescript ver. 4.6.3)
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [NestFactory] Starting Nest application...
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] AppModule dependencies initialized +43ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] UserModule dependencies initialized +0ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] DummyModule dependencies initialized +1ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] AcademicsModule dependencies initialized +0ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] GraphQLSchemaBuilderModule dependencies initialized +1ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [InstanceLoader] GraphQLModule dependencies initialized +1ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [GraphQLModule] Mapped {/graphql, POST} route +316ms
[Nest] 3648  - 03/30/2022, 10:10:02 PM     LOG [NestApplication] Nest application successfully started +2ms
Application is running on: http://[::1]:3000

No errors.