fix: upsert nft and ft metadata (#1193)

Author: MHassanTariq

src/datastore/pg-write-store.ts

@@ -1363,6 +1363,9 @@ export class PgWriteStore extends PgStore {
       };
       const result = await sql`
         INSERT INTO ft_metadata ${sql(values)}
+        ON CONFLICT (contract_id)
+        DO 
+          UPDATE SET ${sql(values)}
       `;
       await sql`
         UPDATE token_metadata_queue
@@ -1392,6 +1395,9 @@ export class PgWriteStore extends PgStore {
       };
       const result = await sql`
         INSERT INTO nft_metadata ${sql(values)}
+        ON CONFLICT (contract_id)
+        DO 
+          UPDATE SET ${sql(values)}
       `;
       await sql`
         UPDATE token_metadata_queue

src/migrations/1621511823381_nft_metadata.ts

@@ -32,6 +32,7 @@ export async function up(pgm: MigrationBuilder): Promise<void> {
     contract_id: {
       type: 'string', 
       notNull: true, 
+      unique: true,
     },
     tx_id: {
       type: 'bytea',

src/migrations/1621511832113_ft_metadata.ts

@@ -32,6 +32,7 @@ export async function up(pgm: MigrationBuilder): Promise<void> {
     contract_id: {
       type: 'string', 
       notNull: true, 
+      unique: true,
     },
     symbol: {
       type: 'string', 

src/tests-tokens/tokens-metadata-tests.ts

@@ -323,7 +323,7 @@ describe('api tests', () => {
         decimals: 5,
         image_uri: 'ft-metadata image uri example',
         image_canonical_uri: 'ft-metadata image canonical uri example',
-        contract_id: 'ABCDEFGHIJ.ft-metadata',
+        contract_id: 'ABCDEFGHIJ.ft-metadata' + i,
         tx_id: '0x123456',
         sender_address: 'ABCDEFGHIJ',
       };