feat(java): Respect content-type header from IR v53

fern/pages/changelogs/java-sdk/2024-12-11.mdx

@@ -0,0 +1,4 @@
+## 2.7.0
+**`(feat):`** Apply Content-Type header from endpoint definition in SDK generator.
+
+

generators/java/sdk/src/main/java/com/fern/java/client/generators/endpoint/AbstractEndpointWriter.java

@@ -200,10 +200,41 @@ public final HttpEndpointMethodSpecs generate() {
         boolean sendContentType = httpEndpoint.getRequestBody().isPresent()
                 || (httpEndpoint.getResponse().isPresent()
                         && httpEndpoint.getResponse().get().getBody().isPresent());
+        String contentType = httpEndpoint
+                .getRequestBody()
+                .flatMap(body -> body.visit(new HttpRequestBody.Visitor<Optional<String>>() {
+                    @Override
+                    public Optional<String> visitInlinedRequestBody(InlinedRequestBody inlinedRequestBody) {
+                        return inlinedRequestBody.getContentType();
+                    }
+
+                    @Override
+                    public Optional<String> visitReference(HttpRequestBodyReference httpRequestBodyReference) {
+                        return httpRequestBodyReference.getContentType();
+                    }
+
+                    @Override
+                    public Optional<String> visitFileUpload(FileUploadRequest fileUploadRequest) {
+                        // N.B. File upload headers are obtained from request configuration.
+                        return Optional.empty();
+                    }
+
+                    @Override
+                    public Optional<String> visitBytes(BytesRequest bytesRequest) {
+                        return bytesRequest.getContentType();
+                    }
+
+                    @Override
+                    public Optional<String> _visitUnknown(Object o) {
+                        throw new IllegalArgumentException("Unknown request type.");
+                    }
+                }))
+                .orElse(AbstractEndpointWriter.APPLICATION_JSON_HEADER);
         CodeBlock requestInitializer = getInitializeRequestCodeBlock(
                 clientOptionsField,
                 generatedClientOptions,
                 httpEndpoint,
+                contentType,
                 generatedObjectMapper,
                 generatedHttpUrl.inlinableBuild(),
                 sendContentType);
@@ -334,6 +365,7 @@ public abstract CodeBlock getInitializeRequestCodeBlock(
             FieldSpec clientOptionsMember,
             GeneratedClientOptions clientOptions,
             HttpEndpoint endpoint,
+            String contentType,
             GeneratedObjectMapper objectMapper,
             CodeBlock inlineableHttpUrl,
             boolean sendContentType);

generators/java/sdk/src/main/java/com/fern/java/client/generators/endpoint/NoRequestEndpointWriter.java

@@ -17,10 +17,7 @@
 package com.fern.java.client.generators.endpoint;
 
 import com.fern.ir.model.commons.ErrorId;
-import com.fern.ir.model.http.HttpEndpoint;
-import com.fern.ir.model.http.HttpMethod;
-import com.fern.ir.model.http.HttpService;
-import com.fern.ir.model.http.SdkRequest;
+import com.fern.ir.model.http.*;
 import com.fern.java.client.ClientGeneratorContext;
 import com.fern.java.client.GeneratedClientOptions;
 import com.fern.java.client.GeneratedEnvironmentsClass;
@@ -86,6 +83,7 @@ public CodeBlock getInitializeRequestCodeBlock(
             FieldSpec clientOptionsMember,
             GeneratedClientOptions clientOptions,
             HttpEndpoint httpEndpoint,
+            String contentType,
             GeneratedObjectMapper generatedObjectMapper,
             CodeBlock inlineableHttpUrl,
             boolean sendContentType) {
@@ -111,10 +109,7 @@ public CodeBlock getInitializeRequestCodeBlock(
                 ClientOptionsGenerator.HEADERS_METHOD_NAME,
                 REQUEST_OPTIONS_PARAMETER_NAME);
         if (sendContentType) {
-            builder.add(
-                    ".addHeader($S, $S)\n",
-                    AbstractEndpointWriter.CONTENT_TYPE_HEADER,
-                    AbstractEndpointWriter.APPLICATION_JSON_HEADER);
+            builder.add(".addHeader($S, $S)\n", AbstractEndpointWriter.CONTENT_TYPE_HEADER, contentType);
         }
         return builder.add(".build();\n").unindent().build();
     }

generators/java/sdk/src/main/java/com/fern/java/client/generators/endpoint/OnlyRequestEndpointWriter.java

@@ -167,6 +167,7 @@ public CodeBlock getInitializeRequestCodeBlock(
             FieldSpec clientOptionsMember,
             GeneratedClientOptions clientOptions,
             HttpEndpoint endpoint,
+            String contentType,
             GeneratedObjectMapper generatedObjectMapper,
             CodeBlock inlineableHttpUrl,
             boolean sendContentType) {
@@ -192,10 +193,7 @@ public CodeBlock getInitializeRequestCodeBlock(
 
                     @Override
                     public Void visitTypeReference(HttpRequestBodyReference typeReference) {
-                        builder.add(
-                                ".addHeader($S, $S)\n",
-                                AbstractEndpointWriter.CONTENT_TYPE_HEADER,
-                                AbstractEndpointWriter.APPLICATION_JSON_HEADER);
+                        builder.add(".addHeader($S, $S)\n", AbstractEndpointWriter.CONTENT_TYPE_HEADER, contentType);
                         return null;
                     }
 
@@ -228,10 +226,7 @@ public Void _visitUnknown(Object unknownType) {
                             clientOptionsMember.name,
                             ClientOptionsGenerator.HEADERS_METHOD_NAME,
                             REQUEST_OPTIONS_PARAMETER_NAME);
-            builder.add(
-                    ".addHeader($S, $S)\n",
-                    AbstractEndpointWriter.CONTENT_TYPE_HEADER,
-                    AbstractEndpointWriter.APPLICATION_JSON_HEADER);
+            builder.add(".addHeader($S, $S)\n", AbstractEndpointWriter.CONTENT_TYPE_HEADER, contentType);
             return builder.add(".build();\n").unindent().build();
         }
     }

generators/java/sdk/src/main/java/com/fern/java/client/generators/endpoint/WrappedRequestEndpointWriter.java

@@ -18,11 +18,7 @@
 
 import com.fern.ir.model.commons.ErrorId;
 import com.fern.ir.model.commons.NameAndWireValue;
-import com.fern.ir.model.http.FileProperty;
-import com.fern.ir.model.http.HttpEndpoint;
-import com.fern.ir.model.http.HttpMethod;
-import com.fern.ir.model.http.HttpService;
-import com.fern.ir.model.http.SdkRequest;
+import com.fern.ir.model.http.*;
 import com.fern.java.client.ClientGeneratorContext;
 import com.fern.java.client.GeneratedClientOptions;
 import com.fern.java.client.GeneratedEnvironmentsClass;
@@ -139,6 +135,7 @@ public CodeBlock getInitializeRequestCodeBlock(
             FieldSpec clientOptionsMember,
             GeneratedClientOptions clientOptions,
             HttpEndpoint _unused,
+            String contentType,
             GeneratedObjectMapper generatedObjectMapper,
             CodeBlock inlineableHttpUrl,
             boolean sendContentType) {
@@ -201,10 +198,7 @@ public CodeBlock getInitializeRequestCodeBlock(
                             clientOptionsMember.name,
                             ClientOptionsGenerator.HEADERS_METHOD_NAME,
                             AbstractEndpointWriter.REQUEST_OPTIONS_PARAMETER_NAME)
-                    .add(
-                            ".addHeader($S, $S);\n",
-                            AbstractEndpointWriter.CONTENT_TYPE_HEADER,
-                            AbstractEndpointWriter.APPLICATION_JSON_HEADER);
+                    .add(".addHeader($S, $S);\n", AbstractEndpointWriter.CONTENT_TYPE_HEADER, contentType);
         } else {
             requestBodyCodeBlock.add(
                     ".headers($T.of($L.$L($L)));\n",

generators/java/sdk/versions.yml

@@ -1,3 +1,10 @@
+- changelogEntry:
+    - summary: |
+        Apply Content-Type header from endpoint definition in SDK generator.
+      type: feat
+  createdAt: '2024-12-11'
+  irVersion: 53
+  version: 2.7.0
 - changelogEntry:
     - summary: |
         Don't generate pagination with nonempty path. Fixes pagination seed tests breaking.

packages/cli/ete-tests/src/tests/update-api-v2/__snapshots__/update-api.test.ts.snap

@@ -1220,16 +1220,16 @@ exports[`fern api update unioned > fern api update unioned 1`] = `
             "type": "string",
             "description": "The starting station of the trip",
             "examples": [
-              "Berlin Hauptbahnhof",
-              "Paris Gare du Nord"
+              "efdbb9d1-02c2-4bc3-afb7-6788d8782b1e",
+              "b2e783e1-c824-4d63-b37a-d8d698862f1d"
             ]
           },
           "destination": {
             "type": "string",
             "description": "The destination station of the trip",
             "examples": [
-              "Paris Gare du Nord",
-              "Berlin Hauptbahnhof"
+              "b2e783e1-c824-4d63-b37a-d8d698862f1d",
+              "efdbb9d1-02c2-4bc3-afb7-6788d8782b1e"
             ]
           },
           "departure_time": {

packages/cli/ete-tests/src/tests/update-api/__snapshots__/update-api.test.ts.snap

@@ -1220,16 +1220,16 @@ exports[`fern api update > fern api update 1`] = `
             "type": "string",
             "description": "The starting station of the trip",
             "examples": [
-              "Berlin Hauptbahnhof",
-              "Paris Gare du Nord"
+              "efdbb9d1-02c2-4bc3-afb7-6788d8782b1e",
+              "b2e783e1-c824-4d63-b37a-d8d698862f1d"
             ]
           },
           "destination": {
             "type": "string",
             "description": "The destination station of the trip",
             "examples": [
-              "Paris Gare du Nord",
-              "Berlin Hauptbahnhof"
+              "b2e783e1-c824-4d63-b37a-d8d698862f1d",
+              "efdbb9d1-02c2-4bc3-afb7-6788d8782b1e"
             ]
           },
           "departure_time": {