Unable to use with TypeScript

[bushev]

Hi,

The module is great! But I can't use it with a TypeScript Lambda function on AWS. It fails in runtime with error:

TypeError: Right-hand side of 'instanceof' is not callable
    at str (***:/node_modules/json-bigint/lib/stringify.js:218:1)
    at Function.module.exports.JSON.stringify (***:/node_modules/json-bigint/lib/stringify.js:380:1)
    at Response.toLambdaResponse (***:/_core/response.ts:91:71)
    at LambdaHandler.execute (***:/_core/LambdaHandler.ts:123:47)
    at processTicksAndRejections (internal/process/task_queues.js:94:5)

My tsconfig.json is

{
  "compilerOptions": {
    "outDir": "./dist/",
    "sourceMap": true,
    "noImplicitAny": false,
    "module": "commonjs",
    "target": "esnext",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "declaration": false,
    "listFiles": false,
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "lib": [
      "esnext",
      "es2019"
    ]
  }
}

[sidorares]

Thanks for report @bushev ! would you be able to make a simple repo ready to reproduce issue?

[bushev]

Hey Andrey,

please, check it out: https://github.com/bushev/json-bigint/tree/master/issue

[sidorares]

hm, the problem is in a way how webpack bundles bignumber.js

If I replace first line in stringify.js to var BigNumber = require('bignumber.js').default; then your example works ( but obviously native node CJS examples don't )

Not sure yet how to solve this for both node and webpack consumers

[bushev]

I did a simple fix based on the details you provided. It works well for me - bushev@e3e93f7

[cr0cK]

Any updates on this?
I'm facing with the same issue.

[cr0cK]

Another solution that works with the usage of patch-package:

$ cat patches/json-bigint+1.0.0.patch 
diff --git a/node_modules/json-bigint/lib/stringify.js b/node_modules/json-bigint/lib/stringify.js
index 3bd5269..b4a3319 100644
--- a/node_modules/json-bigint/lib/stringify.js
+++ b/node_modules/json-bigint/lib/stringify.js
@@ -215,7 +215,7 @@ var JSON = module.exports;
             mind = gap,
             partial,
             value = holder[key],
-            isBigNumber = value != null && (value instanceof BigNumber || BigNumber.isBigNumber(value));
+            isBigNumber = value != null && (value instanceof BigNumber.default || BigNumber.default.isBigNumber(value));
 
 // If the value has a toJSON method, call it to obtain a replacement value.

[zhfnjust]

i have this issue too , error: BigNumber is not a constructor

[ivands]

Same issue.

[NetMajom]

For now you can use "@types/json-bigint": "^1.0.1" in typescript, than import { parse as jsonBigIntParse, stringify as sonBigIntStringify, } from 'json-bigint'; and its working very well.

[tonisives]

For now you can use "@types/json-bigint": "^1.0.1" in typescript, than import { parse as jsonBigIntParse, stringify as sonBigIntStringify, } from 'json-bigint'; and its working very well.

Unfortunately I still get the error when using this solution in AWS Lambda

2022-05-11T07:31:09.601Z	942f9df2-3e1c-4939-9e98-d56e7e6f4b3d	INFO	TypeError: Right-hand side of 'instanceof' is not callable
    at p (/var/task/app.js:2:823196)
    at a.stringify.a.stringify (/var/task/app.js:2:824298)
    at /var/task/app.js:8:10524
    at Generator.next (<anonymous>)
    at /var/task/app.js:8:9856
    at new Promise (<anonymous>)
    at i (/var/task/app.js:8:9601)
    at t.matchPools (/var/task/app.js:8:10007)
    at /var/task/app.js:8:9222

[ifgeny87]

I did a simple fix based on the details you provided. It works well for me - bushev@e3e93f7

The fix fixed the issue. When will you update the npm version?

[CHENGCHANGHU]

Good brother, when will you update the npm version?

[electrovir]

Confirmed that bushev@e3e93f7 fixes this issue for me.

I published a fork with the fixes: https://www.npmjs.com/package/@toniq-labs/json-bigint

[vladaman]

I am experiencing the same issue, with Javascript, Node 22.x and Webpack in serialize method. Unfortunately the fork from @electrovir doesn't work either.

"TypeError: Right-hand side of 'instanceof' is not callable",
    "    at str (/var/task/index.js:39122:51)",

at this line:

isBigNumber = value != null && (value instanceof BigNumber || BigNumber.isBigNumber(value));