#community-help

Resolving Typesense Document Mapping Error in Flutter

TLDR Rude had issues mapping a typesense document into a dart object due to a 'Map' type error. Harpreet suggested a change in the map syntax which solved the problem.

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Jul 11, 2022 (14 months ago)

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Rude

03:36 PM

Hi, does anyone use typesense with flutter? Im trying to map a typesense document into a custom dart object like the following:

final hits = (a['hits'] as List)
                      .cast<Map>()
                      .map((e) => UserSearchable(name: e['document'] as Map['name'] as String, id:e['document'] as Map['id'] as String, imageUrls: e['document'] as Map['imageUrls'] as List<String>))
                      .toList();

but it throws an error saying "The argument type 'Map<dynamic, dynamic>' can't be assigned to the parameter type 'String'". Anyone deal with something similar?

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Jason

03:44 PM

CC: Harpreet

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Harpreet

06:05 PM

Hi Rude
Is this causing the issue?

name: e['document'] as Map['name'] as String

if so, can you try

name: (e['document'] as Map)['name'] as String

06:15

Harpreet

06:15 PM

Otherwise doing

e['document']['name"]

should suffice

Jul 12, 2022 (14 months ago)

Rude

05:11 PM

Yup, looks like that worked! Thank you!

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