BA
Better Auth•2w ago
arwat

converting bigint

When getting the session, I am encountering a problem that the json that contains the user and the session cannot convert because both are bigint. Is there a solution for this? 
# SERVER_ERROR:  187 |     headers.set("Content-Type", "application/x-www-form-urlencoded");
188 |   } else if (data instanceof ReadableStream) {
189 |     body = data;
190 |     headers.set("Content-Type", "application/octet-stream");
191 |   } else if (isJSONSerializable(data)) {
192 |     body = JSON.stringify(data);
                      ^
TypeError: JSON.stringify cannot serialize BigInt.
      at toResponse (/Users/artur/Developer/project/node_modules/better-call/dist/index.js:192:17)
# SERVER_ERROR:  187 |     headers.set("Content-Type", "application/x-www-form-urlencoded");
188 |   } else if (data instanceof ReadableStream) {
189 |     body = data;
190 |     headers.set("Content-Type", "application/octet-stream");
191 |   } else if (isJSONSerializable(data)) {
192 |     body = JSON.stringify(data);
                      ^
TypeError: JSON.stringify cannot serialize BigInt.
      at toResponse (/Users/artur/Developer/project/node_modules/better-call/dist/index.js:192:17)
Solution:
I just added this to the main backend file and it works ```ts declare global { interface BigInt { toJSON(): string...
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6 Replies
arwat
arwatOP•2w ago
In the database, I made the ID a bigint and in databaseHooks I replace the string generated by the library with a bigint 
databaseHooks: {
  user: {
    create: {
      before: async (user) => {
        const snowflakeId = snowflake.nextId()
        user.id = snowflakeId.toString()

        return {
          data: {
            ...user,
          },
        }
      },
    },
  },
}
databaseHooks: {
  user: {
    create: {
      before: async (user) => {
        const snowflakeId = snowflake.nextId()
        user.id = snowflakeId.toString()

        return {
          data: {
            ...user,
          },
        }
      },
    },
  },
}
Ping
Ping•2w ago
There isn't a official support for custom IDs just yet. So for now we'll just have to see if we can find some workarounds for this to work. What Database adapter are you using?
arwat
arwatOP•2w ago
drizzle
Solution
arwat
arwat•2w ago
I just added this to the main backend file and it works 
declare global {
    interface BigInt {
        toJSON(): string
    }
}

BigInt.prototype.toJSON = function () {
    return this.toString()
}
declare global {
    interface BigInt {
        toJSON(): string
    }
}

BigInt.prototype.toJSON = function () {
    return this.toString()
}
is it enough or do it differently?
Ping
Ping•2w ago
Hmm yeah I guess so.
arwat
arwatOP•2w ago
noice, I'm closing and waiting for an update

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