Update README.md

Author: lmangani

docs/README.md

@@ -1,3 +1,67 @@
 # DuckDB HTTP Client Extension
 
 Experimental HTTP Client Community Extension
+
+### GET
+```sql
+D SET autoinstall_known_extensions=1; SET autoload_known_extensions=1;
+D WITH __input AS (
+    SELECT
+      http_get(
+        'https://earth-search.aws.element84.com/v0/search')
+      AS data
+  ),
+  __features AS (
+    SELECT
+      unnest( from_json((data::JSON)->'features', '["json"]') )
+      AS features
+    FROM
+      __input
+  )
+  SELECT
+    features->>'id' AS id,
+    features->'properties'->>'sentinel:product_id' AS product_id,
+    concat(
+      'T',
+      features->'properties'->>'sentinel:utm_zone',
+      features->'properties'->>'sentinel:latitude_band',
+      features->'properties'->>'sentinel:grid_square'
+    ) AS grid_id,
+    ST_GeomFromGeoJSON(features->'geometry') AS geom
+  FROM
+    __features
+  ;
+┌──────────────────────┬──────────────────────┬─────────┬──────────────────────────────────────────────────────────────────────────────────┐
+│          id          │      product_id      │ grid_id │                                       geom                                       │
+│       varchar        │       varchar        │ varchar │                                     geometry                                     │
+├──────────────────────┼──────────────────────┼─────────┼──────────────────────────────────────────────────────────────────────────────────┤
+│ S2B_55GDP_20241003…  │ S2B_MSIL2A_2024100…  │ T55GDP  │ POLYGON ((146.7963024570636 -42.53859799130381, 145.7818492341335 -42.53284395…  │
+│ S2B_55HEC_20241003…  │ S2B_MSIL2A_2024100…  │ T55HEC  │ POLYGON ((146.9997932100229 -34.429312828654396, 146.9997955899612 -33.4390429…  │
+│ S2B_55JHN_20241003…  │ S2B_MSIL2A_2024100…  │ T55JHN  │ POLYGON ((149.9810192714723 -25.374826158099584, 149.9573295859729 -24.3845516…  │
+│ S2B_15MWT_20230506…  │ S2B_MSIL2A_2023050…  │ T15MWT  │ POLYGON ((-92.01266261624052 -2.357695714729873, -92.0560908879947 -2.35076658…  │
+│ S2B_16PBT_20230506…  │ S2B_MSIL2A_2023050…  │ T16PBT  │ POLYGON ((-88.74518736203468 11.690012668805194, -88.9516536515512 11.72635252…  │
+│ S2B_16PCT_20230506…  │ S2B_MSIL2A_2023050…  │ T16PCT  │ POLYGON ((-87.82703591176752 11.483638069337541, -88.8349824533826 11.70734355…  │
+│ S2B_15PZP_20230506…  │ S2B_MSIL2A_2023050…  │ T15PZP  │ POLYGON ((-89.24113885498912 11.784951995968179, -89.38831685490888 11.8080246…  │
+│ S2B_16PET_20230506…  │ S2B_MSIL2A_2023050…  │ T16PET  │ POLYGON ((-87.00017408768262 11.277451946475995, -87.00017438483464 11.7600349…  │
+│ S2B_16PBU_20230506…  │ S2B_MSIL2A_2023050…  │ T16PBU  │ POLYGON ((-88.74518962519173 11.690373971442378, -89.62017907866615 11.8466519…  │
+│ S2B_16PDU_20230506…  │ S2B_MSIL2A_2023050…  │ T16PDU  │ POLYGON ((-87.91783982214183 11.670141095427311, -87.92096676562824 12.5828090…  │
+├──────────────────────┴──────────────────────┴─────────┴──────────────────────────────────────────────────────────────────────────────────┤
+│ 10 rows                                                                                                                        4 columns │
+└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+```
+
+### POST (WIP)
+```sql
+D SELECT
+      http_post(
+        'https://some.server',
+        headers => MAP {
+          'Content-Type': 'application/json',
+        }::VARCHAR,
+        params => MAP {
+          'limit': 1
+        }::VARCHAR
+     )
+  AS data;
+```
+