guide for how to import a collection

docs/hub/Guides/import-collection.md

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+---
+sidebar_position: 8
+---
+
+# Importing a Collection
+
+Any existing Solana collection can be imported into Hub for management and analysis.
+
+## Prerequisites
+
+- A project created within [Holaplex Hub](https://hub.holaplex.com/)
+- Access to the Holaplex Hub GraphQL API (an access token can be generated on Hub's "Credentials" page)
+- Hub API Playground: [https://api.holaplex.com](https://api.holaplex.com/). You could also use a GraphQL client such as [Apollo Client](https://www.apollographql.com/client/) or a tool like [GraphQL Playground](https://github.com/graphql/graphql-playground)
+- Your collection's current update authority keys must be accessible via cli
+
+For all API requests to Hub, you'll need to include an authentication header of the form
+```json
+  {
+    "Authorization": "<access-token>"
+  }
+```
+
+## Step 1: Import collection mutation
+
+The first step is to call the `importSolanaCollection` mutation to make Hub aware of the collection and viewable in the Hub console. Select the project where the collection should belong and the existing collection's token address.
+
+#### Mutation
+```graphql
+mutation ImportSolanaCollection($input:ImportCollectionInput!) {
+	importSolanaCollection(input:$input) {
+    status
+  }
+}
+```
+
+#### Variables
+```json
+{
+  "input": {
+    "project":"<PROJECT_ID>",
+    "collection":"<COLLECTION_TOKEN_ADDRESS>"
+  }
+}
+```
+
+The `project-id` can be found in Hub, by clicking the menu button next to the project name.
+
+### Example response
+
+```json
+{
+  "data": {
+    "importSolanaCollection": {
+      "status": "PENDING"
+    }
+  }
+}
+```
+
+Once the collection is imported, it will be visible on Hub, under the "Collections" tab of the corresponding project.
+
+## Step 2: Transfer update authority
+
+In order to mint tokens to the collection, transfer the collection's update authority to the Hub project treasury wallet. Transfer the update authority using the Metaboss `set-update-authority-all` command: https://metaboss.rs/set.html#set-update-authority.