added introspection lib

Author: dotansimha

Cargo.lock

@@ -12,6 +12,8 @@ authors = ["Dotan Simha <[email protected]>"]
 
 [dependencies]
 graphql-parser = "^0.4.0"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0" 
 
 [dev-dependencies]
 graphql-parser = "0.4.0"

Cargo.toml

@@ -0,0 +1,244 @@
+use std::io;
+
+use serde::{Deserialize, Serialize};
+use serde_json::Result;
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionQuery {
+    __schema: IntrospectionSchema,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionScalarType {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "specifiedByURL")]
+    specified_by_url: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionInputValue {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "defaultValue")]
+    default_value: Option<String>,
+    #[serde(rename = "isDeprecated")]
+    is_deprecated: Option<bool>,
+    #[serde(rename = "deprecationReason")]
+    deprecation_reason: Option<String>,
+    #[serde(rename = "type")]
+    type_ref: Option<IntrospectionInputTypeRef>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub struct IntrospectionField {
+    name: String,
+    description: Option<String>,
+    args: Vec<IntrospectionInputValue>,
+    #[serde(rename = "isDeprecated")]
+    is_deprecated: Option<bool>,
+    #[serde(rename = "deprecationReason")]
+    deprecation_reason: Option<String>,
+    #[serde(rename = "type")]
+    type_ref: IntrospectionOutputTypeRef,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionObjectType {
+    name: String,
+    description: Option<String>,
+    fields: Vec<IntrospectionField>,
+    interfaces: Vec<IntrospectionNamedTypeRef>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionInterfaceType {
+    name: String,
+    description: Option<String>,
+    fields: Vec<IntrospectionField>,
+    interfaces: Option<Vec<IntrospectionNamedTypeRef>>,
+    #[serde(rename = "possibleTypes")]
+    possible_types: Vec<IntrospectionNamedTypeRef>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionUnionType {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "possibleTypes")]
+    possible_types: Vec<IntrospectionNamedTypeRef>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionEnumValue {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "isDeprecated")]
+    is_deprecated: Option<bool>,
+    #[serde(rename = "deprecationReason")]
+    deprecation_reason: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionEnumType {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "enumValues")]
+    enum_values: Vec<IntrospectionEnumValue>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionInputObjectType {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "inputFields")]
+    input_fields: Vec<IntrospectionInputValue>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub enum IntrospectionType {
+    SCALAR(IntrospectionScalarType),
+    OBJECT(IntrospectionObjectType),
+    INTERFACE(IntrospectionInterfaceType),
+    UNION(IntrospectionUnionType),
+    ENUM(IntrospectionEnumType),
+    INPUT_OBJECT(IntrospectionInputObjectType),
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub enum IntrospectionInputType {
+    SCALAR(IntrospectionScalarType),
+    ENUM(IntrospectionEnumType),
+    INPUT_OBJECT(IntrospectionInputObjectType),
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub enum IntrospectionOutputType {
+    SCALAR(IntrospectionScalarType),
+    OBJECT(IntrospectionObjectType),
+    INTERFACE(IntrospectionInterfaceType),
+    UNION(IntrospectionUnionType),
+    ENUM(IntrospectionEnumType),
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionNamedTypeRef {
+    name: String,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub enum IntrospectionOutputTypeRef {
+    SCALAR(IntrospectionNamedTypeRef),
+    LIST {
+        #[serde(rename = "ofType")]
+        of_type: Option<Box<IntrospectionOutputTypeRef>>,
+    },
+    NON_NULL {
+        #[serde(rename = "ofType")]
+        of_type: Option<Box<IntrospectionOutputTypeRef>>,
+    },
+    ENUM(IntrospectionNamedTypeRef),
+    INPUT_OBJECT(IntrospectionNamedTypeRef),
+    UNION(IntrospectionNamedTypeRef),
+    OBJECT(IntrospectionNamedTypeRef),
+    INTERFACE(IntrospectionNamedTypeRef),
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "kind")]
+pub enum IntrospectionInputTypeRef {
+    LIST {
+        #[serde(rename = "ofType")]
+        of_type: Option<Box<IntrospectionOutputTypeRef>>,
+    },
+    NON_NULL {
+        #[serde(rename = "ofType")]
+        of_type: Option<Box<IntrospectionOutputTypeRef>>,
+    },
+    SCALAR(IntrospectionNamedTypeRef),
+    ENUM(IntrospectionNamedTypeRef),
+    INPUT_OBJECT(IntrospectionNamedTypeRef),
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionSchema {
+    description: Option<String>,
+    #[serde(rename = "queryType")]
+    query_type: IntrospectionNamedTypeRef,
+    #[serde(rename = "mutationType")]
+    mutation_type: Option<IntrospectionNamedTypeRef>,
+    #[serde(rename = "subscriptionType")]
+    subscription_type: Option<IntrospectionNamedTypeRef>,
+    types: Vec<IntrospectionType>,
+    directives: Vec<IntrospectionDirective>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub enum DirectiveLocation {
+    QUERY,
+    MUTATION,
+    SUBSCRIPTION,
+    FIELD,
+    FRAGMENT_DEFINITION,
+    FRAGMENT_SPREAD,
+    INLINE_FRAGMENT,
+    VARIABLE_DEFINITION,
+    /** Type System Definitions */
+    SCHEMA,
+    SCALAR,
+    OBJECT,
+    FIELD_DEFINITION,
+    ARGUMENT_DEFINITION,
+    INTERFACE,
+    UNION,
+    ENUM,
+    ENUM_VALUE,
+    INPUT_OBJECT,
+    INPUT_FIELD_DEFINITION,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct IntrospectionDirective {
+    name: String,
+    description: Option<String>,
+    #[serde(rename = "isRepeatable")]
+    is_repeatable: Option<bool>,
+    locations: Vec<DirectiveLocation>,
+    args: Vec<IntrospectionInputValue>,
+}
+
+pub fn parse_introspection<R>(input: R) -> Result<IntrospectionQuery>
+where
+    R: io::Read,
+{
+    serde_json::from_reader::<R, IntrospectionQuery>(input)
+}
+
+#[test]
+fn test_product_introspection() {
+    use std::fs::File;
+    let json_file = File::open("./src/introspection/test_files/product_introspection.json")
+        .expect("failed to open json file");
+    parse_introspection(json_file).expect("failed to parse introspection json");
+}
+
+#[test]
+fn test_github_introspection() {
+    use std::fs::File;
+    let json_file = File::open("./src/introspection/test_files/github_introspection.json")
+        .expect("failed to open json file");
+    parse_introspection(json_file).expect("failed to parse introspection json");
+}
+
+#[test]
+fn test_shopify_introspection() {
+    use std::fs::File;
+    let json_file = File::open("./src/introspection/test_files/shopify_introspection.json")
+        .expect("failed to open json file");
+    parse_introspection(json_file).expect("failed to parse introspection json");
+}

src/introspection/introspection.rs

@@ -0,0 +1,4 @@
+#![allow(non_camel_case_types)]
+mod introspection;
+
+pub use self::introspection::*;