Add support for HF tag mappings, starting with Flux LoRA

README.md

@@ -6,7 +6,7 @@ In January 2025, Hugging Face announced [Inference Providers](https://huggingfac
 
 This repo contains a [mapping](src/models.ts) of Replicate models to Hugging Face models, so we can tell Hugging Face when to display a Replicate inference widget on its model pages.
 
-This repo also includes tooling to keep those mappings up to date using Hugging Face's Model Mappings API.
+This repo also includes tooling to keep those mappings up to date using Hugging Face's [Model Mappings API](https://huggingface.co/docs/inference-providers/register-as-a-provider#3-model-mapping-api).
 
 ## Adding a new model
 
@@ -24,6 +24,25 @@ Add your new model to the `inferenceModels` array, like so:
 
 To see allowable values for `task`, refer to [huggingface.co/tasks](https://huggingface.co/tasks).
 
+## Adding a new tag mapping
+
+To add a new tag mapping, edit [src/tags.ts](src/tags.ts)
+
+Add your new tag to the `inferenceTags` array, like so:
+
+```typescript
+{
+    type: 'tag-filter',
+    task: 'text-to-image',
+    tags: ['flux', 'lora'],
+    providerModel: 'black-forest-labs/flux-dev-lora',
+    adapterType: 'lora',
+    status: 'live',
+}
+```
+
+Tag mappings allow you to map multiple Hugging Face models to a single Replicate model based on their tags. This is useful when you have a single Replicate model that can handle multiple variations of a model (like different LoRA adapters).
+
 ## Updating model mappings
 
 This repo uses a [GitHub Actions workflow](.github/workflows/sync.yml) to keep the model mappings up to date, as well as model warm/cold states.

src/hf.ts

@@ -1,10 +1,21 @@
-interface MappingItem {
+interface ModelMappingItem {
   task: string;
   hfModel: string;
   providerModel: string;
   status?: 'live' | 'staging';
 }
 
+interface TagFilterMappingItem {
+  task: string;
+  providerModel: string;
+  status?: 'live' | 'staging';
+  type: 'tag-filter';
+  tags: string[];
+  adapterType: 'lora';
+}
+
+type MappingItem = ModelMappingItem | TagFilterMappingItem;
+
 interface StatusUpdateRequest {
   hfModel: string;
   status: 'live' | 'staging';
@@ -43,12 +54,18 @@ class HFInferenceProviderClient {
 
       if (!response.ok) {
         const errorText = await response.text();
-        throw new Error(`Request failed: ${response.status} ${response.statusText} - ${errorText}`);
+        const error = new Error(`Request failed: ${response.status} ${response.statusText} - ${errorText}`);
+        if (response.status !== 409) {
+          console.error('Request error:', error);
+        }
+        throw error;
       }
 
       return await response.json();
     } catch (error) {
-      console.error('Request error:', error);
+      if (error instanceof Error && !error.message.includes('409 Conflict')) {
+        console.error('Request error:', error);
+      }
       throw error;
     }
   }

src/index.ts

@@ -1,4 +1,5 @@
 import { type InferenceModel, inferenceModels } from './models.js';
+import { type InferenceTag, inferenceTags } from './tags.js';
 
 import HFInferenceProviderClient from './hf.js';
 
@@ -37,7 +38,6 @@ console.log("\n\nExisting HF model IDs:");
 console.log(existingHFModelIds);
 
 const newMappings = replicateModels.filter(model => !existingHFModelIds.includes(model.hfModel));
-
 const existingMappings = replicateModels.filter(model => existingHFModelIds.includes(model.hfModel));
 
 if (newMappings.length > 0) {
@@ -63,4 +63,27 @@ if (existingMappings.length > 0) {
 	console.log("\n\nNo existing mappings to update.");
 }
 
+// Handle tag mappings
+console.log("\n\nReplicate tag mappings:");
+console.log(inferenceTags);
+
+// Register tag mappings
+if (inferenceTags.length > 0) {
+    console.log("\n\nAdding tag mappings:");
+    for (const tag of inferenceTags) {
+        console.log(`${tag.tags.join(', ')} - ${tag.status ?? 'live'}`);
+        try {
+            await hf.registerMappingItem(tag);
+        } catch (error) {
+            if (error instanceof Error && error.message.includes('409 Conflict')) {
+                console.log(`Skipping existing mapping for tags: ${tag.tags.join(', ')}`);
+                continue;
+            }
+            throw error;
+        }
+    }
+} else {
+    console.log("\n\nNo tag mappings to add.");
+}
+
 console.log("\n\nDone!");

src/tags.ts

@@ -0,0 +1,19 @@
+export interface InferenceTag {
+    type: 'tag-filter';
+    task: string;
+    tags: string[];
+    providerModel: string;
+    adapterType: 'lora';
+    status?: 'live' | 'staging';
+}
+
+export const inferenceTags: InferenceTag[] = [
+    {
+        type: 'tag-filter',
+        task: 'text-to-image',
+        tags: ['flux', 'lora'],
+        providerModel: 'black-forest-labs/flux-dev-lora',
+        adapterType: 'lora',
+        status: 'live',
+    }
+];