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nexedi
gitlab-ce
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75699238
Commit
75699238
authored
Dec 10, 2020
by
Alex Kalderimis
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doc/development/api_graphql_styleguide.md
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75699238
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@@ -785,7 +785,7 @@ end
You should never re-use resolvers directly. Resolvers have a complex life-cycle, with
authorization, readiness and resolution orchestrated by the framework, and at
each stage
lazy values
can be returned to take advantage of batching
each stage
[
lazy values
](
#laziness
)
can be returned to take advantage of batching
opportunities. Never instantiate a resolver or a mutation in application code.
Instead, the units of code reuse are much the same as in the rest of the
...
...
@@ -1705,16 +1705,16 @@ All client-facing changes **must** include a [changelog entry](changelog.md).
## Laziness
One important technique
for managing performance that is unique to GraphQL
is
using
**lazy**
values.
These are values that
represent the promise of a result,
allowing their action to be run later
. This
enables batching of queries in
different parts of the query tree. The main example of
thi
s in our code is
One important technique
unique to GraphQL for managing performance
is
using
**lazy**
values.
Lazy values
represent the promise of a result,
allowing their action to be run later
, which
enables batching of queries in
different parts of the query tree. The main example of
lazy value
s in our code is
the
[
GraphQL BatchLoader
](
graphql_guide/batchloader.md
)
.
If you need to manage lazy values directly, then please see
`Gitlab::Graphql::Lazy`
, and in particular
`Gitlab::Graphql::Laziness`
, which
contains
`#force`
and
`#delay`
which help implement the basic operations of
creation and
elimination of laziness, where needed.
To manage lazy values directly, read
`Gitlab::Graphql::Lazy`
, and in
particular
`Gitlab::Graphql::Laziness`
. This contains
`#force`
and
`#delay`
, which help implement the basic operations of creation and
elimination of laziness, where needed.
For dealing with lazy values without forcing them, use
`Gitlab::Graphql::Lazy.with_value`
.
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