Allow disabling ssl verification on schema introspection

graphql_client_cli/README.md

@@ -14,11 +14,13 @@ cargo install graphql_client_cli --force
 Get the schema from a live GraphQL API. The schema is printed to stdout.
 
 USAGE:
-    graphql-client introspect-schema [OPTIONS] <schema_location>
+    graphql-client introspect-schema [FLAGS] [OPTIONS] <schema_location>
 
 FLAGS:
     -h, --help       Prints help information
     -V, --version    Prints version information
+        --no-ssl     Set this option to disable ssl certificate verification. Default value is false.
+                     ssl verification is turned on by default.
 
 OPTIONS:
         --authorization <authorization>    Set the contents of the Authorizaiton header.

graphql_client_cli/src/introspect_schema.rs

@@ -19,6 +19,7 @@ pub fn introspect_schema(
     output: Option<PathBuf>,
     authorization: Option<String>,
     headers: Vec<Header>,
+    no_ssl: bool,
 ) -> anyhow::Result<()> {
     use std::io::Write;
 
@@ -33,7 +34,9 @@ pub fn introspect_schema(
         operation_name: introspection_query::OPERATION_NAME,
     };
 
-    let client = reqwest::Client::new();
+    let client = reqwest::Client::builder()
+        .danger_accept_invalid_certs(no_ssl)
+        .build()?;
 
     let mut req_builder = client.post(location).headers(construct_headers());
 

graphql_client_cli/src/main.rs

@@ -28,6 +28,10 @@ enum Cli {
         /// --header 'X-Name: Value'
         #[structopt(long = "header")]
         headers: Vec<introspect_schema::Header>,
+        /// Disable ssl verification.
+        /// Default value is false.
+        #[structopt(long = "no-ssl")]
+        no_ssl: bool,
     },
     #[structopt(name = "generate")]
     Generate {
@@ -79,7 +83,14 @@ fn main() -> anyhow::Result<()> {
             output,
             authorization,
             headers,
-        } => introspect_schema::introspect_schema(&schema_location, output, authorization, headers),
+            no_ssl,
+        } => introspect_schema::introspect_schema(
+            &schema_location,
+            output,
+            authorization,
+            headers,
+            no_ssl,
+        ),
         Cli::Generate {
             variables_derives,
             response_derives,