remove unused graphql fields (#1448)

* remove unused  graphql fields

* includeHasFarms filter

* update specs

* fix specs

* fixes

* refactoring

* add context tracker

* add selftUrl

* mexsettings refactoring

* remove double filters

* remove unused import

* implement curso pagination

* fix spec

* remove logs

* use filteredPairs instead of pairs in settings

* pairs are already filtered by state Active

* remove hardcoded pairs count and add factory query to fetch the pairs count

* update logs

* Refactor GraphQL queries into separate files for MEX services

* add API documentation and error handling for MEX endpoints

* update readme

* undo changes

src/common/graphql/graphql.service.ts

@@ -16,6 +16,9 @@ export class GraphQlService {
     const exchangeServiceUrl = this.apiConfigService.getExchangeServiceUrlMandatory();
     const graphqlClient = new GraphQLClient(exchangeServiceUrl, {
       fetch: this.createFetchWithTimeout(60_000),
+      headers: {
+        'origin': this.apiConfigService.getSelfUrl(),
+      },
     });
 
     try {

src/endpoints/mex/entities/mex.pair.ts

@@ -68,12 +68,6 @@ export class MexPair {
   @ApiProperty({ type: String, example: 'jungledex' })
   exchange: MexPairExchange | undefined;
 
-  @ApiProperty({ type: Boolean, nullable: true })
-  hasFarms: boolean | undefined = undefined;
-
-  @ApiProperty({ type: Boolean, nullable: true })
-  hasDualFarms: boolean | undefined = undefined;
-
   @ApiProperty({ type: Number, nullable: true })
   tradesCount: number | undefined = undefined;
 
@@ -82,4 +76,10 @@ export class MexPair {
 
   @ApiProperty({ type: Number, nullable: true })
   deployedAt: number | undefined = undefined;
+
+  @ApiProperty({ type: Boolean, nullable: true })
+  hasFarms?: boolean;
+
+  @ApiProperty({ type: Boolean, nullable: true })
+  hasDualFarms?: boolean;
 }

src/endpoints/mex/entities/mex.pairs..filter.ts

@@ -5,4 +5,5 @@ export class MexPairsFilter {
     Object.assign(this, init);
   }
   exchange?: MexPairExchange;
+  includeFarms?: boolean;
 }

src/endpoints/mex/entities/mex.settings.ts

@@ -23,7 +23,7 @@ export class MexSettings {
       ...response.proxy.map((x: any) => x.address),
     ];
     settings.pairContracts = [
-      ...response.pairs.filter((x: any) => x.state === 'Active').map((x: any) => x.address),
+      ...response.pairs.map((x: any) => x.address),
       ...response.proxy.map((x: any) => x.address),
     ];
     settings.wrapContracts = response.wrappingInfo.map((x: any) => x.address);
@@ -39,11 +39,11 @@ export class MexSettings {
     settings.lockedAssetIdentifier = lockedAssetIdentifiers.find((identifier: string) => identifier.startsWith('LKMEX'));
     settings.lockedAssetIdentifierV2 = lockedAssetIdentifiers.find((identifier: string) => identifier.startsWith('XMEX'));
 
-    const mexEgldPairs = response.pairs.filter((x: any) => x.firstToken.name === 'WrappedEGLD' && x.secondToken.name === 'MEX');
-    if (mexEgldPairs.length > 0) {
-      settings.wegldId = mexEgldPairs[0].firstToken.identifier;
-      settings.mexId = mexEgldPairs[0].secondToken.identifier;
-    }
+    const wrappedToken = response.wrappingInfo[0].wrappedToken.identifier;
+    const mexToken = response.simpleLockEnergy.baseAssetToken.identifier;
+
+    settings.wegldId = wrappedToken;
+    settings.mexId = mexToken;
 
     return settings;
   }

src/endpoints/mex/graphql/farms.query.ts

@@ -0,0 +1,98 @@
+import { gql } from "graphql-request";
+
+export const farmsQuery = gql`
+      query {
+        farms {
+          ... on FarmModelV1_2 {
+            version
+            address
+            farmToken {
+              collection
+              name
+              ticker
+              __typename
+            }
+            farmingToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmedToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmTokenPriceUSD
+            farmingTokenPriceUSD
+            farmedTokenPriceUSD
+          }
+          ... on FarmModelV1_3 {
+            version
+            address
+            farmToken {
+              collection
+              name
+              ticker
+              __typename
+            }
+            farmingToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmedToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmTokenPriceUSD
+            farmingTokenPriceUSD
+            farmedTokenPriceUSD
+          }
+          ... on FarmModelV2 {
+            version
+            address
+            farmToken {
+              collection
+              name
+              ticker
+              __typename
+            }
+            farmingToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmedToken {
+              name
+              identifier
+              decimals
+              __typename
+            }
+            farmTokenPriceUSD
+            farmingTokenPriceUSD
+            farmedTokenPriceUSD
+          }
+        }
+        stakingFarms {
+          address
+          farmingToken {
+            name
+            identifier
+            decimals
+              __typename
+          }
+          farmToken {
+            name
+            collection
+            decimals
+              __typename
+          }
+        }
+      }
+    `;

src/endpoints/mex/graphql/filtered.pairs.query.ts

@@ -0,0 +1,51 @@
+import { gql } from "graphql-request";
+
+export const filteredPairsQuery = (includeFarms: boolean = false) => {
+  const farmFields = includeFarms ? `
+        hasFarms
+        hasDualFarms` : '';
+
+  return gql`
+        query filteredPairs($pagination: ConnectionArgs!, $filters: PairsFilter!) {
+          filteredPairs(pagination: $pagination, filters: $filters) {
+            edges {
+              cursor
+              node {
+                address
+                liquidityPoolToken {
+                  identifier
+                  name
+                  __typename
+                }
+                liquidityPoolTokenPriceUSD
+                firstToken {
+                  name
+                  identifier
+                  previous24hPrice
+                  __typename
+                }
+                secondToken {
+                  name
+                  identifier
+                  previous24hPrice
+                  __typename
+                }
+                firstTokenPriceUSD
+                secondTokenPriceUSD
+                state
+                type
+                lockedValueUSD
+                volumeUSD24h
+                tradesCount
+                tradesCount24h
+                deployedAt
+                ${farmFields}
+              }
+            }
+            pageInfo {
+              hasNextPage
+            }
+          }
+        }
+      `;
+};

src/endpoints/mex/graphql/pairs.count.query.ts

@@ -0,0 +1,8 @@
+import { gql } from "graphql-request";
+
+export const pairCountQuery = gql`
+query PairCount {
+      factory {
+        pairCount
+      }
+    }`;

src/endpoints/mex/graphql/settings.query.ts

@@ -0,0 +1,60 @@
+import { gql } from "graphql-request";
+
+export const settingsQuery = (pairLimitCount: number) => gql`
+query {
+  filteredPairs(pagination: {first: ${pairLimitCount}}, filters: {state: ["Active"]}) {
+    edges {
+      node {
+        address
+      }
+    }
+  }
+  proxy {
+    address
+    lockedAssetTokens {
+      collection
+    }
+  }
+  farms {
+    ... on FarmModelV1_2 {
+      state
+      address
+    }
+    ... on FarmModelV1_3 {
+      state
+      address
+    }
+    ... on FarmModelV2 {
+      state
+      address
+    }
+  }
+  wrappingInfo {
+    address
+    wrappedToken {
+      identifier
+    }
+  }
+  distribution {
+    address
+  }
+  lockedAssetFactory {
+    address
+  }
+  stakingFarms {
+    state
+    address
+  }
+  stakingProxies {
+    address
+  }
+  factory {
+    address
+  }
+  simpleLockEnergy {
+    baseAssetToken {
+      identifier
+    }
+  }
+}
+`;

src/endpoints/mex/graphql/staking.proxy.query.ts

@@ -0,0 +1,12 @@
+import { gql } from "graphql-request";
+
+export const stakingProxyQuery = gql`
+query StakingProxy {
+  stakingProxies {
+    address
+    dualYieldToken {
+      name
+      collection
+    }
+  }
+}`;

src/endpoints/mex/graphql/token.prices.hour.resolution.query.ts

@@ -0,0 +1,13 @@
+import { gql } from "graphql-request";
+
+export const tokenPricesHourResolutionQuery = (tokenIdentifier: string) => gql`
+ query tokenPricesHourResolution {
+        values24h(
+          series: "${tokenIdentifier}",
+          metric: "priceUSD"
+        ) {
+          timestamp
+          value
+        }
+      }
+    `;

src/endpoints/mex/graphql/tokens.query.ts

@@ -0,0 +1,9 @@
+import { gql } from "graphql-request";
+
+export const tokensQuery = gql`
+ query tokens {
+          tokens {
+            identifier
+            type
+          }
+        }`;