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@nartc/automapper
Advanced tools
An object-to-object mapper by convention for TypeScript.
initialize()
has been deprecated in v6
. Please use createMap()
, addProfile()
, and/or withGlobalSettings()
directlymapping configurations
to use those// before
Mapper.createMap(Source, Destination)
.forMember(d => d.destMember, opts => opts.mapFrom(s => s.sourceMember);
// after
Mapper.createMap(Source, Destination)
.forMember(d => d.destMember, mapFrom(s => s.sourceMember))
preCondition()
is also a separate function. Use in v6 as follow// before
Mapper.createMap(Source, Destination).forMember(
d => d.destMember,
opts => opts.preCondition(predicate).mapFrom(s => s.sourceMember)
);
// after
Mapper.createMap(Source, Destination).forMember(
d => d.destMember,
preCondition(predicate),
mapFrom(s => s.sourceMember)
);
automapper-nartc
The only migration step you need is to modify forMember()
method.
In automapper-nartc
, forMember()
takes in a property string
as the first argument. Now, forMember()
in @nartc/automapper
takes in a selector
instead. This wil allow reverseMap()
to work better.
// Before
Mapper.createMap(User, UserVm)
.forMember('fullName', opts => opts.mapFrom(...));
// Now
Mapper.createMap(User, UserVm)
.forMember(dest => dest.fullName, opts => opts.mapFrom(...));
@Expose()
and @ExposedType()
to @AutoMap()
// Before
class User {
@Expose()
firstName: string;
@ExposedType(() => Profile)
profile: Profile;
}
// v3
class User {
@AutoMap()
firstName: string;
@AutoMap(() => Profile)
profile: Profile;
}
So far, the following is supported:
Basic Mapping between two classes
Basic Mapping for nested classes
Mapping Inheritance - with caveats regarding typings.
Array/List Mapping
Flattening
ReverseMap
Value Converters
Value Resolvers
Async (Read more at Async Support)
Before/After Callback
Naming Conventions
Null Substitution - @lqmanh pointed out the difference in fromValue()
and nullSubstitution()
use-case, and that difference is totally valid. Hence, nullSubstitution
is now supported.
Circular Dependencies
Tree-shakable
Please check out the Circular Dependencies Documentations
Check out the AutoMapper TypeScript Documentations
Contribution of any kind is always welcomed.
FAQs
An object-to-object mapper by convention for TypeScript.
The npm package @nartc/automapper receives a total of 605 weekly downloads. As such, @nartc/automapper popularity was classified as not popular.
We found that @nartc/automapper demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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