docs: improve Node example

Author: Naramsim

graphql/examples/node/pokemon.js

@@ -18,110 +18,108 @@ It gets:
   - flavor text
 */
 
-// Node doesn't implement fetch so we have to import it
-const fetch =require("node-fetch");
+const fetch = require("node-fetch")
 
-async function fetchGraphQL(operationsDoc, operationName, variables) {
+async function fetchGraphQL(query, variables, operationName) {
   const result = await fetch(
-    "http://localhost:80/graphql/v1beta",
+    "https://beta.pokeapi.co/graphql/v1beta",
     {
       method: "POST",
       body: JSON.stringify({
-        query: operationsDoc,
+        query: query,
         variables: variables,
         operationName: operationName
       })
     }
-  );
+  )
 
-  return await result.json();
+  return await result.json()
 }
 
-const operationsDoc = `
-  query pokemon_details {
-    species: pokemon_v2_pokemonspecies(where: {name: {_eq: "staryu"}}) {
-      name
-      base_happiness
-      is_legendary
-      is_mythical
-      generation: pokemon_v2_generation {
-        name
-      }
-      habitat: pokemon_v2_pokemonhabitat {
+
+
+function fetchPokemon_details(name="starmie") {
+  const query = `
+    query pokemon_details($name: String) {
+      species: pokemon_v2_pokemonspecies(where: {name: {_eq: $name}}) {
         name
-      }
-      pokemon: pokemon_v2_pokemons_aggregate(limit: 1) {
-        nodes {
-          height
+        base_happiness
+        is_legendary
+        is_mythical
+        generation: pokemon_v2_generation {
           name
-          id
-          weight
-          abilities: pokemon_v2_pokemonabilities_aggregate {
-            nodes {
-              ability: pokemon_v2_ability {
-                name
+        }
+        habitat: pokemon_v2_pokemonhabitat {
+          name
+        }
+        pokemon: pokemon_v2_pokemons_aggregate(limit: 1) {
+          nodes {
+            height
+            name
+            id
+            weight
+            abilities: pokemon_v2_pokemonabilities_aggregate {
+              nodes {
+                ability: pokemon_v2_ability {
+                  name
+                }
               }
             }
-          }
-          stats: pokemon_v2_pokemonstats {
-            base_stat
-            stat: pokemon_v2_stat {
-              name
-            }
-          }
-          types: pokemon_v2_pokemontypes {
-            slot
-            type: pokemon_v2_type {
-              name
+            stats: pokemon_v2_pokemonstats {
+              base_stat
+              stat: pokemon_v2_stat {
+                name
+              }
             }
-          }
-          levelUpMoves: pokemon_v2_pokemonmoves_aggregate(where: {pokemon_v2_movelearnmethod: {name: {_eq: "level-up"}}}, distinct_on: move_id) {
-            nodes {
-              move: pokemon_v2_move {
+            types: pokemon_v2_pokemontypes {
+              slot
+              type: pokemon_v2_type {
                 name
               }
-              level
             }
-          }
-          foundInAsManyPlaces: pokemon_v2_encounters_aggregate {
-            aggregate {
-              count
+            levelUpMoves: pokemon_v2_pokemonmoves_aggregate(where: {pokemon_v2_movelearnmethod: {name: {_eq: "level-up"}}}, distinct_on: move_id) {
+              nodes {
+                move: pokemon_v2_move {
+                  name
+                }
+                level
+              }
             }
-          }
-          fireRedItems: pokemon_v2_pokemonitems(where: {pokemon_v2_version: {name: {_eq: "firered"}}}) {
-            pokemon_v2_item {
-              name
-              cost
+            foundInAsManyPlaces: pokemon_v2_encounters_aggregate {
+              aggregate {
+                count
+              }
+            }
+            fireRedItems: pokemon_v2_pokemonitems(where: {pokemon_v2_version: {name: {_eq: "firered"}}}) {
+              pokemon_v2_item {
+                name
+                cost
+              }
+              rarity
             }
-            rarity
           }
         }
-      }
-      flavorText: pokemon_v2_pokemonspeciesflavortexts(where: {pokemon_v2_language: {name: {_eq: "en"}}, pokemon_v2_version: {name: {_eq: "firered"}}}) {
-        flavor_text
+        flavorText: pokemon_v2_pokemonspeciesflavortexts(where: {pokemon_v2_language: {name: {_eq: "en"}}, pokemon_v2_version: {name: {_eq: "firered"}}}) {
+          flavor_text
+        }
       }
     }
-  }
-`;
+  `
 
-function fetchPokemon_details() {
   return fetchGraphQL(
-    operationsDoc,
-    "pokemon_details",
-    {}
-  );
+    query,
+    {"name": name},
+    "pokemon_details"
+  )
 }
 
-async function startFetchPokemon_details() {
-  const { errors, data } = await fetchPokemon_details();
-
+async function main() {
+  const pokemon = process.argv.slice(2)[0];
+  const { errors, data } = await fetchPokemon_details(pokemon)
   if (errors) {
-    // handle those errors like a pro
-    console.error(errors);
+    console.error(errors)
   }
-
-  // do something great with this precious data
-  console.log(data);
+  console.log(JSON.stringify(data, null, 2))
 }
 
-startFetchPokemon_details();
+main()