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SERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you should STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples SERDE_JSON::MAP::KEYS Reorders the elements of this iterator in-place according to the given predicate, such that all those that return true precede all those that return false.Returns the number of true elements found.Read more OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. ENUM REPRESENTATIONS · SERDESEE MORE ON SERDE.RS DESERIALIZER LIFETIMES · SERDESEE MORE ON SERDE.RSSERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you should STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples SERDE_JSON::MAP::KEYS Reorders the elements of this iterator in-place according to the given predicate, such that all those that return true precede all those that return false.Returns the number of true elements found.Read more DESERIALIZER LIFETIMES · SERDE Understanding deserializer lifetimes. The Deserialize and Deserializer traits both have a lifetime called 'de, as do some of the other deserialization-related traits.. trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This lifetime is what enables Serde to safely perform efficient zero-copy deserializationSERDE - RUST
Serde. Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. CUSTOM DATE FORMAT · SERDE Custom date format. Date in a custom format. This uses the chrono crate to serialize and deserialize JSON data containing a custom date format. The with attribute is used to provide the logic for handling the custom representation.. use chrono::{DateTime, Utc}; use serde::{Serialize, Deserialize}; # pub struct StructWithCustomDate { // DateTime supports CONTAINER ATTRIBUTES · SERDE Container attributes # Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying IMPLEMENTING DESERIALIZE · SERDE Implementing Deserialize. The Deserialize trait looks like this:. pub trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This method's job is to map the type into the Serde data model by providing the Deserializer with a Visitor that can be driven by the Deserializer to construct an instance of your type.SERDE::SERIALIZE
A data structure that can be serialized into any data format supported by Serde.. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here.All of these can be serialized using Serde out of the box. Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs andSERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples SERIALIZE ENUM AS NUMBER · SERDE Serialize enum as number. The serde_repr crate provides alternative derive macros that derive the same Serialize and Deserialize traits but delegate to the underlying representation of a C-like enum. This allows C-like enums to be formatted as integers rather than strings in JSON, for example. serde = "1.0" serde_json = "1.0"serde_repr = "0.1"
SERDE_BYTES
Wrapper types to enable optimized handling of & and Vec.. Without specialization, Rust forces Serde to treat & just like any other slice and Vec just like any other vector. In reality this particular slice and vector can often be serialized and deserialized SERDE::DE::UNEXPECTED A message stating what uncategorized thing the input contained that was not expected. The message should be a noun or noun phrase, not capitalized and without a period. OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two FIELD ATTRIBUTES · SERDE Field attributes # Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords.. Allows specifying independent names for serialization vs deserialization: DESERIALIZER LIFETIMES · SERDESEE MORE ON SERDE.RS DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE::SERIALIZE
A data structure that can be serialized into any data format supported by Serde.. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here.All of these can be serialized using Serde out of the box. Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs and STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you shouldSERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SERIALIZE FIELDS AS CAMELCASE · SERDE Serialize fields as camelCase. Serialize fields as camelCase use serde::Serialize; # # struct Person { first_name OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two FIELD ATTRIBUTES · SERDE Field attributes # Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords.. Allows specifying independent names for serialization vs deserialization: DESERIALIZER LIFETIMES · SERDESEE MORE ON SERDE.RS DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE::SERIALIZE
A data structure that can be serialized into any data format supported by Serde.. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here.All of these can be serialized using Serde out of the box. Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs and STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you shouldSERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SERIALIZE FIELDS AS CAMELCASE · SERDE Serialize fields as camelCase. Serialize fields as camelCase use serde::Serialize; # # struct Person { first_name DESERIALIZER LIFETIMES · SERDE Understanding deserializer lifetimes. The Deserialize and Deserializer traits both have a lifetime called 'de, as do some of the other deserialization-related traits.. trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This lifetime is what enables Serde to safely perform efficient zero-copy deserializationSERDE - RUST
Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two CUSTOM DATE FORMAT · SERDE Custom date format. Date in a custom format. This uses the chrono crate to serialize and deserialize JSON data containing a custom date format. The with attribute is used to provide the logic for handling the custom representation.. use chrono::{DateTime, Utc}; use serde::{Serialize, Deserialize}; # pub struct StructWithCustomDate { // DateTime supports IMPLEMENTING DESERIALIZE · SERDE Implementing Deserialize. The Deserialize trait looks like this:. pub trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This method's job is to map the type into the Serde data model by providing the Deserializer with a Visitor that can be driven by the Deserializer to construct an instance of your type. CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
MANUALLY DESERIALIZE STRUCT · SERDE Manually deserialize struct. Manually implementing Deserialize for a struct. Only when derive is not getting the job done.. The Deserialize impl below corresponds to the following struct:. struct Duration { secs: u64, nanos: u32, } . Deserializing a struct is somewhat more complicated than deserializing a map in order to avoid allocating a String to hold the field names. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. ExamplesSERDE_BYTES
Wrapper types to enable optimized handling of & and Vec.. Without specialization, Rust forces Serde to treat & just like any other slice and Vec just like any other vector. In reality this particular slice and vector can often be serialized and deserialized SERIALIZE FIELDS AS CAMELCASE · SERDE Serialize fields as camelCase. Serialize fields as camelCase use serde::Serialize; # # struct Person { first_name OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two ENUM REPRESENTATIONS · SERDESEE MORE ON SERDE.RSSERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you should STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes. OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two ENUM REPRESENTATIONS · SERDESEE MORE ON SERDE.RSSERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you should STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes. DESERIALIZER LIFETIMES · SERDE Understanding deserializer lifetimes. The Deserialize and Deserializer traits both have a lifetime called 'de, as do some of the other deserialization-related traits.. trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This lifetime is what enables Serde to safely perform efficient zero-copy deserialization FIELD ATTRIBUTES · SERDE Field attributes # Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords.. Allows specifying independent names for serialization vs deserialization:SERDE - RUST
Serde. Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. USING DERIVE · SERDE Using derive. Serde provides a derive macro to generate implementations of the Serialize and Deserialize traits for data structures defined in your crate, allowing them to be represented conveniently in all of Serde's data formats.. You only need to set this up if your code is using #.. This functionality is based on Rust's # mechanism, just like what CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you shouldSERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples CUSTOM DATE FORMAT · SERDE Custom date format. Date in a custom format. This uses the chrono crate to serialize and deserialize JSON data containing a custom date format. The with attribute is used to provide the logic for handling the custom representation.. use chrono::{DateTime, Utc}; use serde::{Serialize, Deserialize}; # pub struct StructWithCustomDate { // DateTime supportsSERDE::SERIALIZE
A data structure that can be serialized into any data format supported by Serde.. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here.All of these can be serialized using Serde out of the box. Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs and SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes. OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two ENUM REPRESENTATIONS · SERDESEE MORE ON SERDE.RS DESERIALIZER LIFETIMES · SERDESEE MORE ON SERDE.RS FIELD ATTRIBUTES · SERDE Field attributes # Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords.. Allows specifying independent names for serialization vs deserialization: USING DERIVE · SERDE Using derive. Serde provides a derive macro to generate implementations of the Serialize and Deserialize traits for data structures defined in your crate, allowing them to be represented conveniently in all of Serde's data formats.. You only need to set this up if your code is using #.. This functionality is based on Rust's # mechanism, just like what CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes. OVERVIEW · SERDEOVERVIEWHELPSERDE DATA MODELUSING DERIVEATTRIBUTESCUSTOM SERIALIZATION Serde. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two ENUM REPRESENTATIONS · SERDESEE MORE ON SERDE.RS DESERIALIZER LIFETIMES · SERDESEE MORE ON SERDE.RS FIELD ATTRIBUTES · SERDE Field attributes # Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords.. Allows specifying independent names for serialization vs deserialization: USING DERIVE · SERDE Using derive. Serde provides a derive macro to generate implementations of the Serialize and Deserialize traits for data structures defined in your crate, allowing them to be represented conveniently in all of Serde's data formats.. You only need to set this up if your code is using #.. This functionality is based on Rust's # mechanism, just like what CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
STRUCT FLATTENING · SERDE Struct flattening. The flatten attribute inlines keys from a field into the parent struct.flatten may be used any number of times within the same struct. It is supported only within structs that have named fields, and the field to which it is applied must be a struct or maptype.
SERDE_JSON - RUST
Any type that implements Serde's Serialize trait can be serialized this way. This includes built-in Rust standard library types like Vec and HashMap, as well as any structs or enums annotated with #.. No-std support. As long as there is a memory allocator, it is possible to use serde_json without the rest of the Rust standard library. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes.SERDE - RUST
Serde. Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. SERDE_JSON::VALUE::VALUE Index into a serde_json::Value using the syntax value or value.. Returns Value::Null if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns Value::Null if the given key does not exist in the map or the given index is not within the bounds of the array.. For retrieving deeply nested values, you should CONTAINER ATTRIBUTES · SERDE Container attributes. Serialize and deserialize this struct or enum with the given name instead of its Rust name. Allows specifying independent names for serialization vs deserialization: # Rename all the fields (if this is a struct) or variants (if this is an enum) according to the given case convention.The
IMPLEMENTING DESERIALIZE · SERDE Implementing Deserialize. The Deserialize trait looks like this:. pub trait Deserialize < 'de >: Sized { fn deserialize (deserializer: D) -> Result < Self, D::Error> where D: Deserializer< 'de >; } . This method's job is to map the type into the Serde data model by providing the Deserializer with a Visitor that can be driven by the Deserializer to construct an instance of your type.SERDE::SERIALIZE
A data structure that can be serialized into any data format supported by Serde.. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here.All of these can be serialized using Serde out of the box. Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs andSERDE_YAML - RUST
This crate is a Rust library for using the Serde serialization framework with data in YAML file format.. This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.. Examples DEFAULT VALUE FOR A FIELD · SERDE Default value for a field. Default value for a field use serde::Deserialize; # struct Request { // Use the result of a function as the default if "resource" is // not included in the input. # resource: String, // Use the type's implementation of std::default::Default if // "timeout" is not included in the input.#[serde(default
SERDE::DE::DESERIALIZEOWNED Lifetime. The relationship between Deserialize and DeserializeOwned in trait bounds is explained in more detail on the page Understanding deserializer lifetimes. SKIP SERIALIZING FIELD · SERDE Skip serializing field. NOTE: Using skip_serializing does not skip deserializing the field.If you only add the skip_serializing attribute, and then attempt to deserialize the data, it will fail, as it will still attempt to deserialize the skipped field. Please use the skip attribute to skip both serializing and deserializing (see FieldAttributes: skip).
SERIALIZE FIELDS AS CAMELCASE · SERDE Serialize fields as camelCase. Serialize fields as camelCase use serde::Serialize; # # struct Person { first_name* Overview
* Help
* Serde data model
* Using derive
* Attributes
* Container attributes * Variant attributes* Field attributes
* Custom serialization * Implementing Serialize * Implementing Deserialize* Unit testing
* Writing a data format* Conventions
* Error handling
* Implementing a Serializer * Implementing a Deserializer * Deserializer lifetimes* Examples
* Structs and enums in JSON * Enum representations * Default value for a field* Struct flattening
* Handwritten generic type bounds * Deserialize for custom map type * Array of values without buffering * Serialize enum as number * Serialize fields as camelCase * Skip serializing field * Derive for remote crate * Manually deserialize struct* Discarding data
* Transcode into another format * Either string or struct * Convert error types * Custom date format* No-std support
* Feature flags
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__ OVERVIEW
__SERDE
Serde is a framework for _SER_ializing and _DE_serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two groups interact with each other, allowing any supported data structure to be serialized and deserialized using any supported data format.__DESIGN
Where many other languages rely on runtime reflection for serializing data, Serde is instead built on Rust's powerful trait system. A data structure that knows how to serialize and deserialize itself is one that implements Serde's Serialize and Deserialize traits (or uses Serde's derive attribute to automatically generate implementations at compile time). This avoids any overhead of reflection or runtime type information. In fact in many situations the interaction between data structure and data format can be completely optimized away by the Rust compiler, leaving Serde serialization to perform the same speed as a handwritten serializer for the specific selection of data structureand data format.
__DATA FORMATS
The following is a partial list of data formats that have been implemented for Serde by the community. * JSON , the ubiquitous JavaScript Object Notation used by many HTTP APIs. * Bincode , a compact binary format used for IPC within the Servo rendering engine. * CBOR , a Concise Binary Object Representation designed for small message size without the need for version negotiation. * YAML , a self-proclaimed human-friendly configuration language that ain't markup language. * MessagePack , an efficient binary format that resembles a compact JSON.* TOML , a minimal
configuration format used by Cargo.
* Pickle , a format
common in the Python world. * RON , a Rusty Object Notation. * BSON , the data storage and network transfer format used by MongoDB. * Avro , a binary format used within Apache Hadoop, with support for schema definition. * JSON5 , a superset of JSON including some productions from ES5. * Postcard , a no_std and embedded-systems friendly compact binary format. * URL query strings, in the x-www-form-urlencoded format. * Envy , a way to deserialize environment variables into Rust structs. _(deserialization only)_ * Envy Store , a way to deserialize AWS Parameter Store parameters into Rust structs. _(deserialization only)_ * S-expressions , the textual representation of code and data used by the Lisp language family. * D-Bus 's binary wire format.* FlexBuffers
,
the schemaless cousin of Google's FlatBuffers zero-copy serializationformat.
* Bencode , a simple binary format used in the BitTorrent protocol. * DynamoDB Items , the format used by rusoto_dynamodb to transfer data toand from DynamoDB.
* Hjson , a syntax extension to JSON designed around human reading and editing. _(deserializationonly)_
__DATA STRUCTURES
Out of the box, Serde is able to serialize and deserialize common Rust data types in any of the above formats. For example String, &str, usize, Vec#
struct Point {
x: i32,
y: i32,
}
fn main() {
let point = Point { x: 1, y: 2 }; // Convert the Point to a JSON string. let serialized = serde_json::to_string(&point).unwrap(); // Prints serialized = {"x":1,"y":2} println!("serialized = {}", serialized); // Convert the JSON string back to a Point. let deserialized: Point = serde_json::from_str(&serialized).unwrap(); // Prints deserialized = Point { x: 1, y: 2 } println!("deserialized = {:?}", deserialized);}
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Details
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